Heliborne Magnetic and Time-Domain … Report Heliborne Magnetic and Time-Domain Electromagnetic...

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Technical Report Heliborne Magnetic and Time-Domain Electromagnetic Survey Advantel Dominica Project Beardmore-Geraldton district, Ontario - 2008 For : TLC Explorations 570-144Front St. W Toronto, ON Canada M5J 2L7 Prospectair MBGeosolutions

Transcript of Heliborne Magnetic and Time-Domain … Report Heliborne Magnetic and Time-Domain Electromagnetic...

Technical Report Heliborne Magnetic and Time-Domain Electromagnetic Survey Advantel Dominica Project Beardmore-Geraldton district, Ontario - 2008 For : TLC Explorations 570-144Front St. W Toronto, ON Canada M5J 2L7

Prospectair MBGeosolutions

PROSPECTAIR – MBGEOSOLUTIONS

Report prepared by: Eric Desaulniers, P.Geo.

Marc Boivin, P.Geo. December 2008

MB GEOsolutions 4380 Jérémie, Québec, QC

G2C 1B3 [email protected]

(418) 951-4035

Survey flown by :

CP 1832 Succ. Hull Gatineau, Québec J8X 3Y8

(819) 661-2029 Fax: 1.866.605.3653

[email protected]

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Table of Contents

I. INTRODUCTION..................................................................................................................................3 II. SURVEY EQUIPMENT........................................................................................................................5

AIRBORNE MAGNETOMETERS..........................................................................................................................5 MAGNETIC BASE STATION...............................................................................................................................5 ALTIMETERS ....................................................................................................................................................5 TIME-DOMAIN ELECTROMAGNETIC TRANSMITTER AND RECEIVER .................................................................5 REAL-TIME DIFFERENTIAL GPS ......................................................................................................................6 AIRBORNE NAVIGATION AND DATA ACQUISITION SYSTEM.............................................................................6 SURVEY HELICOPTER .......................................................................................................................................7 DATA PROCESSING HARDWARE AND SOFTWARE.............................................................................................7

III. SURVEY SPECIFICATIONS ..............................................................................................................8 DATA RECORDING ...........................................................................................................................................8 TECHNICAL SPECIFICATIONS............................................................................................................................8

IV. SYSTEM TESTS....................................................................................................................................9 MAGNETOMETER SYSTEM CALIBRATION.........................................................................................................9 INSTRUMENTATION LAG ..................................................................................................................................9

V. FIELD OPERATIONS ........................................................................................................................10 VI. DIGITAL DATA COMPILATION....................................................................................................11

MAGNETOMETER DATA .................................................................................................................................11 TIME-DOMAIN ELECTROMAGNETIC DATA .....................................................................................................11 RADAR ALTIMETER DATA .............................................................................................................................12 POSITIONAL DATA .........................................................................................................................................13

VII. BASIC INTERPRETATION ..............................................................................................................14 GENERAL .......................................................................................................................................................14 OVERVIEW OF MAGNETIC DATA ....................................................................................................................14 OVERVIEW OF THE ELECTROMAGNETIC DATA ...............................................................................................15 INTEGRATED MAGNETIC AND ELECTROMAGNETIC INTERPRETATION............................................................16

VIII. FINAL PRODUCTS ............................................................................................................................18 DIGITAL LINE DATA ......................................................................................................................................18 GEOSOFT GRIDS.............................................................................................................................................19 MAPS (SCALE 1:10,000).................................................................................................................................19 PROJECT REPORT ...........................................................................................................................................20

APPENDIX A : TABLE OF EM ANOMALIES IDENTIFIED.....................................................................21

APPENDIX B : STATEMENT OF QUALIFICATIONS...............................................................................28

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FIGURES

FIGURE 1: MAP OF SURVEY AREA (PROVINCIAL SCALE) ..................................................................................4 FIGURE 2: MAP OF SURVEY AREA (REGIONAL SCALE) .....................................................................................4 FIGURE 3: COMPARISON BETWEEN LAG CORRECTED AND RAW MAGNETIC DATA FLOWN IN 2 OPPOSITE

DIRECTIONS OVER AN ANOMALY ON LINE 28, OCT 9TH 2008 ..........................................................................9 FIGURE 4: LOCATION OF THE SURVEY GRID SOUTH OF THE ROAD 11 AND EAST OF BEARDMORE (ON). .........10 FIGURE 5: TOTAL MAGNETIC INTENSITY INTERPRETATION MAP....................................................................14 FIGURE 6: ELECTROMAGNETIC INTERPRETATION MAP ...................................................................................15 FIGURE 7: LINE 100 CONDUCTIVITY-DEPTH SECTION WITH OFF-TIME CHANNELS PROFILES ..........................16 FIGURE 8: INTEGRATED MAGNETIC AND ELECTROMAGNETIC INTERPRETATION MAP OVER SATELLITE IMAGE

(GOOGLE EARTH) ........................................................................................................................................17

TABLES

TABLE 1: SURVEY BLOCK BOUNDARIES (UTM WGS-84 ZONE 16N)..............................................................3 TABLE 2: TECHNICAL SPECIFICATIONS OF THE PROSPECTAIR’S EMOSQUITO TIME-DOMAIN SYSTEM .............6 TABLE 3: TECHNICAL SPECIFICATIONS OF THE R44 ROBINSON HELICOPTER ..................................................7 TABLE 4: SETTINGS USED IN THE WINDOWING OF THE FULL WAVEFORM ......................................................12 TABLE 5: ANOMALYEM_BEARDMORE.GDB, LISTING OF ALL IDENTIFIED EM ANOMALIES ..........................18 TABLE 6: EM_LINE_DATA_BEARDMORE.GDB..............................................................................................18 TABLE 7: MAG_LINE_DATA_BEARDMORE.GDB ...........................................................................................19

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I. INTRODUCTION

PROSPECTAIR conducted a heliborne magnetic and electromagnetic survey for the mining exploration company TLC EXPLORATIONS (TLC) in the Beardmore-Geraldton district in the province of Ontario (see Figure 1). The survey was flown on October 9th 2008. 1 block was flown for a total of 220 line-km. A total of 2 production flights were performed using PROSPECTAIR’s Robinson R-44 helicopter, registration C-GATM. The survey block was located 180 km north-east of the city of Thunder Bay and 20 km east of the town of Beardmore. Survey operations were conducted from the town of Beardmore close to the survey area. The traverse lines were flown at 100 m spacing and oriented at 0o and the control lines at 1,000 m spacing and oriented at 90o. The survey was flown at an altitude of 90 m above ground surface measured by digitally recorded radar. The average survey flying speed (calculated equivalent ground speed) was 110 kph. It is a relatively flat to slightly undulating area with elevations ranging from approximately 313 m to 404 m above sea level (ASL). Table 1: Survey block boundaries (UTM WGS-84 Zone 16N)

X Y

450021 5501204

452826 5501123

454363 5500848

454350 5497848

450943 5498076

447766 5497819

447770 5500819

450027 5500819

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Figure 1: Map of Survey Area (provincial scale)

Figure 2: Map of Survey Area (regional scale)

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II. SURVEY EQUIPMENT

PROSPECTAIR provided the following instrumentation for this survey: Airborne Magnetometers Geometrics G-822A

Both the ground and heliborne systems used a non-oriented (strap-down) optically-pumped Cesium split-beam sensor. These magnetometers have a sensitivity of 0.005 nT and a range of 15,000 to 100,000 nT with a sensor noise of less than 0.02 nT. The heliborne sensor was mounted in a bird made of non-magnetic material located 15 m below the helicopter when flying. Total magnetic field measurements were recorded at 10 Hz in the aircraft. The ground system was recording magnetic data at 1 sample every 3 seconds.

Magnetic Base Station GEM GSM-19

A GEM GSM-19 Overhauser magnetometer, a computer workstation and a complement of spare parts and test equipment serve as the base station. PROSPECTAIR establish the base station in a secure location with low magnetic noise. The GSM-19 magnetometer has resolution of 0.01 nT, and 0.2 nT accuracy over its operating range of 20,000- to 100,000 nT. Data is recorded at 3 Hz.

Altimeters Free Flight Radar Altimeter

The Free Flight radar altimeter measures height above ground to a resolution of 0.5 m and an accuracy of 5% over a range up to 2,500 ft. The radar altimeter data is recorded and sampled at 10 Hz.

Time-Domain Electromagnetic Transmitter and Receiver THEM Geophysics - Emosquito II

The Emosquito II is the latest system built by THEM Geophysics of Gatineau (Québec). It is a powerful light-weight system adapted for the R44 Robinson performance. The technical specifications are listed below in the table 2. The magnetometer is taped to an horizontal boom which supports the receiving coils tear-drop shape vessel at its end. The boom has an elastic suspension. A proprietary suspension system protects the orthogonal coils assembly and limits the total field excursions. The tear drop vessel acts as a vane and maintained the mast in the line of flight. The towing bridle is constructed from a Kevlar rope and multi-paired shielded cables. It is attached to the helicopter by a weak link assembly. An onboard harness with outboard connectors mounted on a plate allows for quick disconnection or connection of the exterior elements.

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Table 2: Technical specifications of the Prospectair’s Emosquito Time-Domain system

Item Specification

Transmitter:

Loop Diameter: 7.5 meters

Current Waveform: Half-Sine

Turns: 2

Pulse Length 2 ms

Frequencies 30, 45, 90 Hz (programmable)

Loop Area 50 m²

Peak Current 2000A

Tow Cable Length 65 meters

Self-Powered 9HP Honda coupled with 28 Volts Alternator

Receiver:

Coils axis X, Y and Z orthogonal coils assembly

Configuration Coaxial (Z)

Four channels Current, X, Y and Z

Max Sampling rate 1024 points per half cycle at 90 Hz

Survey sampling rate 1024 or 2048 per half cycle at 30Hz

Sampling Full waveform

Gates Programmable (max 256)

On time signal Recorded and processed

Mechanical:

Maximum survey speed: 110 km per hour

Transmitter height 30 meters AGL

Receiver height 60 meters

Weight (Total) 200 kg

Real-Time Differential GPS Omnistar DGPS

PROSPECTAIR uses an OmniStar differential GPS navigation system to provide real-time guidance for the pilot and to position data to an absolute accuracy of better than 5 m. The Omnistar receiver provides real-time differential GPS for the Agis on-board navigation system. The differential data set was relayed to the helicopter via the Omnistar network appropriate geosynchronous satellite for the survey location. The receiver optimizes the corrections for the current location.

Airborne Navigation and Data Acquisition System Pico-Envirotec modified AGIS-XP system

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The Airborne Geophysical Information System (AGIS-XP) is advanced, software driven instrument specifically designed for mobile aerial or ground geophysical survey work. The AGIS instrumentation package includes an advanced Satellite navigation (GPS), real-time flight path information that is displayed over a map image (BMP format) of the area, and reliable data acquisition software. Thanks to simple interfacing, the radar and barometric altimeters and the Geometrics magnetometer are easily integrated into the system and digitally recorded. Automatic synchronization to the GPS position and time provides very close correlation between data and geographical position. The AGIS is equipped with a software suite allowing easy maintenance, upgrades, data QC, and project and survey area layout planning. For the purpose of the TDEM recording, PicoEnvirotec designed for Prospectair a TDEM data acquisition and synchronization system perfectly compatible with the existing AGIS-XP package.

Survey helicopter Robinson R-44 (registration C-GATM)

PROSPECTAIR flew the survey using Prospectair’s Robinson R44 helicopter that handle efficiently the equipment load and the required survey range. Table 2 presents the helicopter technical specifications and capacity.

Table 3: Technical specifications of the R44 Robinson Helicopter

Item Specification

Powerplant One 195kW (260hp) Textron Lycoming O-540

Rate of climb 1000 ft/min Rate of climb 1000 ft/min

Cruising speed at 75% power 209 MPH

Service ceiling 14,000 ft Range with no reserve 645 km

Empty weight 635 kg

Maximum takeoff 1,090 kg

Data Processing Hardware and Software

Processing was performed on high performance desktop computers optimized for quick daily QC and processing tasks. Geosoft software Oasis Montaj version 7.0.1 was used for data processing.

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III. SURVEY SPECIFICATIONS

Data Recording The following parameters were recorded during the course of the survey: In the helicopter:

GPS positional data: (time, latitude, longitude, altitude, heading and accuracy (PDOP)) recorded at intervals of 0.1 s;

Total magnetic field: recorded at intervals of 0.1 s; Airborne spectrometer data: recorded at intervals of 0.1 s; Terrain clearance as measured by the radar altimeter at intervals of 0.1 s;

At the base and remote magnetic ground stations:

Total magnetic field: recorded at intervals of 3 s; GPS time recorded every 3s to synchronize with airborne data.

Technical Specifications

The data quality control was performed after survey flight. The following technical specifications were adhered to:

Height – 90 m mean terrain clearance except in areas where Transport Canada regulations prevent flying at this height. Traverse lines and control lines must be flown at the same altitude at points of intersection; the altitude tolerances are limited to no more than 30 m difference between traverse lines and control lines.

Airborne Magnetometer Data - The noise envelope not to be exceeded 0.5 nT more than 500 m line-length without a reflight.

Diurnal Specifications – A maximum tolerance of 5.0 nT (peak to peak) deviation from a long chord of one minute the base station.

Flying Speed – The average ground speed for the survey aircraft, flying traverse or control lines should be 110 kph. The acceptable high limit is 120 kph.

Radar Altimeter – minimal accuracy of 5%, minimum range of 0-2500 m. Flight Path Following

Traverse lines: - azimuth: 0º, spacing: 100 m - allowed minimum separation: 50 m - allowed maximum separation: 150 m.

Control Lines: - azimuth: 90º, spacing: 1000 m

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IV. SYSTEM TESTS

Magnetometer System Calibration

The survey configuration using a bird towed 30 m below any magnetic piece of the helicopter allows the simplification of the magnetic calibration requirement. Consequently, heading error and aircraft movement noise was considered negligible and no correction was applied to the data.

Instrumentation Lag

The magnetometer system lag is a combination of two factors: 1) the time difference between when a magnetic reading is sensed, and when that value is received by the data acquisition system, and 2) the time taken for the magnetometer sensor to arrive at the location of the GPS antenna. The second factor is defined by the physical displacement of the GPS antenna and the magnetometer sensor and the speed of the aircraft. Because the magnetic sensor (bird) is considered on the same vertical axis than the GPS antenna, this second factor is considered negligible. The total magnetic lag value for the AGIS acquisition system has been calculated by Pico-Envirotec to be 2.1 s. Figure 2 shows graph of the lag corrected magnetic data compared to raw magnetic data over an important magnetite anomaly in the survey area.

Figure 3: Comparison between lag corrected and raw magnetic data flown in 2

opposite directions over an anomaly on Line 28, Oct 9th 2008

57450,000

57650,000

57850,000

58050,000

58250,000

58450,000

58650,000

5E+06 5E+06 5E+06 5E+06 5E+06 5E+06 5E+06 5E+06 5E+06 5E+06 6E+06

Y (utm 16N)

Mag

(nT)

Lag correction of 2.1 secMag not lag corrected

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V. FIELD OPERATIONS

Survey operations were conducted from the town of Beardmore at the baseball pitch at the latitude 49°36’29’’ and longitude -87°57’18’’ on October 9th 2008. The crew members were based at the Roxy Motel in Beardmore. 66 N-S traverse lines and 3 E-W tie lines were flown in 2 production flights. Data were sent to the MBGEOSOLUTIONS geophysicists after demobilization to commence processing tasks. The data were then checked for Quality Control to confirm they fulfill contract specification. The GEM-19 magnetic base station was set up near the landing area at the latitude 49°36’27’’ and longitude -87°57’18’’. The Intermagnet reference stations managed by the GSC named BRD and OTT located respectively in Brandon (Manitoba) and Ottawa (Ontario) were used as a backup and to monitor the spatial variability of the diurnal variations. Figure 4: Location of the survey grid south of the road 11 and east of Beardmore (ON).

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VI. DIGITAL DATA COMPILATION

Data compilation including editing and filtering, quality control, and final data processing was performed by MB GEOSOLUTIONS geophysicists. Magnetometer Data

The airborne magnetometer data, recorded at 10 Hz, were plotted and checked for spikes and noise on a flight basis. The second of the two production flights showed intermittent abnormal noise hampering significantly data quality. It will be entirely reflown by PROSPECTAIR. In the meantime, airborne magnetic data from that flight was heavily filtered with a low pass limited at 20 points to deliver preliminary grids. A 2.2 second lag correction was applied to all data to correct for the time delay between detection and recording of the airborne data. Ground magnetometer data were recorded at 1 sample every 3 seconds and interpolated by a spline function to 10 Hz to match airborne data. Data were inspected for cultural interference and edited where necessary. The diurnal variations were removed by subtracting the ground magnetometer data to the airborne data and by adding back the average of the ground magnetometer value. No IGRF and levelling corrections were applied to the data and the final magnetic product is defined as the Total Magnetic Intensity (TMI). The magnetic data were interpolated onto a regular grid using a minimum curvature algorithm to create a two-dimensional grid equally incremented in x and y directions. The algorithm produces a smooth grid by iteratively solving a set of difference equations minimizing the total second horizontal derivative, while attempting to honour the input data (Briggs, I.C, 1974, Geophysics, v 39, no. 1). The final grids of the magnetic data were created with 20 m grid cell size appropriate for survey lines spaced at 100 m. Both traverse and control lines were used in the gridding process.

Time-Domain Electromagnetic data

The PicoEnvirotec EM Digital Acquisition System records the x, y and z components of the receiver coils at a sampling rate of 60000Hz. There is 30 full cycles (60 half cycles) of the full waveform (Tx ON and OFF time) every second. The first data manipulation involves a stacking procedure where each half cycle is weighted with respect to the previous cycle (±¼), the next cycle (±¼) and its own value (±½ ). The positive and negative signs of the respective multiplication coefficients are used to make positive all negative half cycles.

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The next step is the half cycle averaging corresponding to the desired sampling rate. In the present case, from the 60 stacked positive half cycles per second, 6 consecutive half cycle are averaged to produce one sample every 0.1 sec. The windowing settings for the 40 different channels are presented in table 4. The channel 1 to 10 correspond to the ON-time measurements and channels 11 to 40 the OFF-time. The channel 11 isn’t used for interpretation and mapping as it exists some ‘ramp-off’ effect that alters the data quality. Each window is filtered with a median filter removing spikes and with a finite impulse response (FIR) selective filter of the 251th order improving the signal to noise ratio. The calculation of the time constant (τ) is based on Nabighian (1991) for the late time channel. A first τ calculation is made between channel 25 and 27 and then between channel 28 and 31. The used τ is the average between the two calculated values.

Table 4: Settings used in the windowing of the full waveform

Channel #

Starting time (μsec)

Width (μsec)

Channel #

Starting time (μsec)

Width (μsec)

W1 166.67 50.00 W21 3150.00 533.33 W2 416.67 50.00 W22 3266.67 533.33 W3 466.67 50.00 W23 3400.00 533.33 W4 1300.00 16.67 W24 3266.67 1100.00 W5 1316.67 16.67 W25 3450.00 1100.00 W6 1333.33 16.67 W26 3650.00 1100.00 W7 2616.67 50.00 W27 3883.33 1100.00 W8 2666.67 50.00 W28 4133.33 1100.00 W9 2800.00 83.33 W29 4433.33 1100.00 W10 2816.67 83.33 W30 4766.67 1100.00 W11 2833.33 83.33 W31 5166.67 1100.00 W12 2833.33 166.67 W32 5050.00 2200.00 W13 2833.33 250.00 W33 5550.00 2200.00 W14 2866.67 250.00 W34 6133.33 2200.00 W15 2866.67 366.67 W35 6783.33 2200.00 W16 2916.67 366.67 W36 7516.67 2200.00 W17 2916.67 533.33 W37 8366.67 2200.00 W18 2950.00 533.33 W38 9333.33 2200.00 W19 3000.00 533.33 W39 10450.00 2200.00 W20 3033.33 533.33 W40 11700.00 2200.00

Radar Altimeter Data

The terrain clearance measured by the radar altimeter in metres was recorded at 10 Hz. The data were filtered to remove high frequency noise using a 1 sec low pass filter. The final data were plotted and inspected for quality.

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Positional Data Real time DGPS correction provided by Omnistar was applied to the recorded GPS positional data. No post-flight DGPS processing was made using a GPS base station. Positional data (Lat, long, UTM X, UTM Y, geoid height) were recorded and 10 Hz sampling rate and all data processing was performed in the NAD-83 datum. The delivered data were provided in X, Y locations in UTM projection zone 18 North, with respect to the NAD-83 datum. Elevation data were recorded relative to the GRS-80 ellipsoid.

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VII. BASIC INTERPRETATION General considerations The tight line spacing of 100m between each traverse line and the survey speed of 30 m/s allows the potential detection of all anomalous formations or materials bigger than 50 m in E-W direction and 3 m in N-S direction along survey lines. The following basic magnetic and electromagnetic interpretation is solely based on the geophysical data acquired in this project and there was no match with the geology. Further interpretation works should include the determination of specific geological target type and the correlation between other data sources. Overview of Magnetic data The magnetic map (figure 5) shows three major domains, A, B and C. Domain A and C are characterized by low magnetic background at the northern (A) and southern (C) limit of the survey grid. Domain B located in the central part of the survey area illustrates an active magnetic zone with variation from low value in the NW of this domain and very high value in the SE. Cross-cutting E-W linear features are clearly identified in domain B and the two main magnetic linear anomalies 1 and 2 are plotted on the map and are probably associated with stratigraphy. We interpret as a fault the SSW-NNE structure (I) where the major E-W features are slightly disrupted. Figure 5: Total Magnetic Intensity interpretation map

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Overview of the Electromagnetic data There is actually no automatic picking program involved in the interpretation procedures of the EMosquito system. Identification and description of the EM anomalies are made on the EM profiles and according two main criteria, the amplitude of the anomaly and the calculated time constant based on the late time channels (see section VI). Since the amplitude and the wave-length of the anomaly is strongly related with the depth of the source, the time-constant calculated over an anomaly is directly related with the conductance. Both criteria are used to classify and characterize EM anomalies. NOTE: Anomaly picks are based on the theoretical shape of thin steeply dipping conductor. Presence of thicker conductive body of several sub-parallel thin conductors may generate ambiguous responses. In that case, anomaly pick can be wrongly located. 298 EM anomalies were identified, classified and listed in Appendix A. The electromagnetic interpretation map (figure 6) shows the EM anomalies and interpreted axis. Anomalies are illustrated by coloured dot where the green, yellow, orange, red and pink represent an increasing conductivity (pink dot are the best conductors). EM anomalies create 4 major E-W extended anomalous axis (A, B, C and D) usually associated with sub-vertical stratigraphic horizons. Inside the general E-W axis A to D, two different family of structural features are identified. The predominant family (dashed lines in fig 6) is mainly oriented SSW-NNE in major axis A, B and C while tend to be E-W in axis D. A second important family of orientation NW-SE is interpreted (dotted lines). This second family often breaks the continuity of the E-W trends and it is often associated with very good conductors. Shorter EM axis generally composed of very good conductors can be observed outside of the major E-W axis (solid lines in fig 6). Four zones (symbolized by ellipsoid 1, 2, 3 and 4 on fig 6) are including very good conductors that aren’t interpreted as typical EM axis and the correlation between successive survey lines is less obvious. Isolated anomalies that don’t show any continuity or correlation between adjacent survey lines are represented by question marks on fig 6. Figure 6: Electromagnetic interpretation map

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Figure 7 shows the conductivity-depth section with the EM profiles for the survey line 100 for the first 25 off-time channels (based on CDI routine from Haoping Huang, 2007). The color of green stands for resistive material at 1 milliSiemens/meters (1000 ohm-m), and the purple for conductive material at 1000 mS/m (1 ohm-m). Zones 1 and 2 (fig 6 and 7) are clearly the areas with the highest conductivity. The very large anomaly shape on EM profiles over these zones and the response of the CDI routine suggest that the conductors are probably wide and thick (zone 1) or sub-horizontal (zone 2) bodies (figure 7). Figure 7: Line 100 conductivity-depth section with Off-Time channels profiles

The EM anomalies are listed at the appendix A. The amplitudes (nT/s) in the first off-time channel is usually proportional to the size of the conductor and its proximity to the surface and it is oriented for a ground follow-up. The higher intensity values (over 1500 nT/s in appendix A) will most probably be explained after ground prospecting. The calculated time constant (ms) is directly proportional to the quality of the conductors. Integrated Magnetic and Electromagnetic Interpretation Figure 8 illustrates the combined magnetic (red) and electromagnetic (cyan) interpretations. The major EM axis A lies directly over the contact between magnetic domains A and B. The EM axis B and C well correlate with the northern contact of the magnetic formations 1 and 2 respectively. The fault “I” interpreted on the magnetic data is often corresponding to break in continuity of major E-W EM axis associated with NW-SE EM trend (dotted line). The eastern part of the highly magnetic formation 1 (see fig 5) shows an interesting EM axis (solid line) with very good conductivity values.

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Figure 8: Integrated Magnetic and Electromagnetic interpretation map over satellite

image (Google Earth)

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VIII. FINAL PRODUCTS

Digital Line Data Three Geosoft databases are provided with the channels detailed in Table 5,6 and 7. Table 5: AnomalyEM_Beardmore.gdb, Listing of all identified EM anomalies No. Name Description Units 1 ID Anomaly ID 2 X UTM Easting, WGS-84, Zone 16N m 3 Y UTM Easting, WGS-84, Zone 16N m 4 Lat_deg Latitude in decimal degrees deg 5 Long_deg Longitude in decimal degrees deg 6 Tau Time constant millisecond 7 W1_nTs First Off-time channel amplitude nT/s

Table 6: EM_line_data_Beardmore.gdb No. Name Description Units 1 ID Anomaly ID 2 X UTM Easting, WGS-84, Zone 16N m 3 Y UTM Easting, WGS-84, Zone 16N m 4 Lat_deg Latitude in decimal degrees deg 5 Long_deg Longitude in decimal degrees deg 6 Tau Time constant millisecond 7 Gtm_sec Second since midnight GMT Sec 8 Flt Flight Number 9 Radar Ground clearance given by the radar altimeter m 10 Bird_Height Altitude of the EM Transmitter m 11 W1_nTs 1st Off-time channel amplitude nT/s 13 W2_nTs 2nd Off-time channel amplitude nT/s 12 W3_nTs 3rd Off-time channel amplitude nT/s 14 W4_nTs 4th Off-time channel amplitude nT/s 15 W5_nTs 5th Off-time channel amplitude nT/s 16 W6_nTs 6th Off-time channel amplitude nT/s 17 W7_nTs 7th Off-time channel amplitude nT/s 18 W8_nTs 8th Off-time channel amplitude nT/s 19 W9_nTs 9th Off-time channel amplitude nT/s 20 W10_nTs 10th Off-time channel amplitude nT/s 21 W11_nTs 11th Off-time channel amplitude nT/s 22 W12_nTs 12th Off-time channel amplitude nT/s 23 W13_nTs 13rd Off-time channel amplitude nT/s 24 W14_nTs 14th Off-time channel amplitude nT/s 25 W15_nTs 15th Off-time channel amplitude nT/s

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26 W16_nTs 16th Off-time channel amplitude nT/s

27 W17_nTs 17th Off-time channel amplitude nT/s

27 W18_nTs 18th Off-time channel amplitude nT/s

27 W19_nTs 19th Off-time channel amplitude nT/s

27 W20_nTs 20th Off-time channel amplitude nT/s

27 W21_nTs 21st Off-time channel amplitude nT/s

27 W22_nTs 22nd Off-time channel amplitude nT/s

27 W23_nTs 23rd Off-time channel amplitude nT/s

27 W24_nTs 24th Off-time channel amplitude nT/s

27 W25_nTs 25th Off-time channel amplitude nT/s

Table 7: Mag_Line_data_Beardmore.gdb No. Name Description Units 1 Gtm_sec Time in second since midnight UTC sec 2 GPS_Day Day in the GPS calendar year m 3 X UTM Easting, NAD-83, Zone 18N m 4 Y UTM Northing, NAD-83, Zone 18N m 5 Lat_deg Latitude in decimal degrees deg 6 Long_deg Longitude in decimal degrees deg 7 GPSZ Real time DGPS altitude m 8 Radar Ground clearance given by the radar altimeter m 9 RAW_MAG Raw magnetic recording after a lag of 2.2 sec nT 10 GND_MAG Base station magnetic value nT 11 TMI Total Magnetic Intensity after diurnal corrections nT 12 TERRAIN Calculated Digital Elevation Model channel m

Geosoft Grids

Grid refers to WGS-84 in the UTM projection Zone 16 North. Coordinates are in metres, grid cell size is 25 m, and format is Geosoft binary. Grid product : 1. TMI_Beardmore.grd – Total Magnetic Field

Maps (scale 1:10,000) Three copies of the following 3 products: 1. Total Magnetic Intensity Contour Map 2. EM Profiles with anomalies Interpretation Map 3. TMI with EM anomalies Interpretation Map

20 HELIBORNE MAGNETIC AND ELECTROMAGNETIC SURVEY, TLC EXPLORATIONS, ON – 2008

PROSPECTAIR – MBGEOSOLUTIONS

Project Report

Three printed copies and 1 digital file in PDF format Respectfully submitted,

____________________ _____________________ Eric Desaulniers, P.Geo Marc Boivin, P.Geo December 2008 December 2008

HELIBORNE MAGNETIC AND ELECTROMAGNETIC SURVEY, TLC EXPLORATIONS, ON – 2008 21

PROSPECTAIR – MBGEOSOLUTIONS

APPENDIX A : Table of EM anomalies identified

X (UTM16N WGS 84)

Y (UTM16N WGS 84)

Anomaly ID

Amplitude in first off-time channel (nT/s)

Time constant calculated of late

channels (ms) 447814 5498191 10.1 190 0.3 447825 5498626 10.2 568 1.2 447820 5499482 10.4 369 1.2 447819 5499561 10.3 682 1 447815 5500543 10.4 677 2 447918 5498191 20.1 260 2.4 447923 5498617 20.2 644 0 447923 5499430 20.3 621 2.3 447927 5500533 20.4 859 1.1 448024 5498209 30.1 259 0 448023 5498607 30.2 1049 1.4 448018 5499340 30.3 674 5.9 448028 5499582 30.4 859 0.7 448018 5500658 30.5 925 1.5 448117 5498222 40.1 299 0 448122 5498601 40.2 728 0.9 448127 5499303 40.3 996 1 448122 5499599 40.4 689 0.2 448130 5500515 40.5 1175 1.2 448228 5498235 50.1 441 4.3 448228 5498240 50.1 440 4.5 448224 5498619 50.2 919 1.4 448219 5500515 50.5 1042 2 448320 5498217 60.1 522 0.5 448323 5498687 60.2 677 1.3 448318 5499320 60.3 894 1.6 448322 5499640 60.4 770 1.5 448328 5500491 60.5 1058 0.6 448411 5498152 70.1 234 0 448422 5498635 70.2 569 0 448418 5499414 70.3 490 1.8 448417 5499654 70.4 516 1.4 448419 5500588 70.5 937 1.7 448525 5498148 80.1 405 0 448524 5498231 80.1 612 1 448523 5498630 80.2 406 0 448523 5499346 80.3 791 1.3 448527 5499638 80.4 638 1 448518 5500696 80.5 810 1.2 448618 5498185 90.1 382 0 448623 5498659 90.2 527 0.3 448624 5499408 90.3 830 1.1

22 HELIBORNE MAGNETIC AND ELECTROMAGNETIC SURVEY, TLC EXPLORATIONS, ON – 2008

PROSPECTAIR – MBGEOSOLUTIONS

448619 5499670 90.4 448 0 448622 5500604 90.5 972 1.3 448721 5498201 100.1 227 0 448725 5498686 100.2 413 0.9 448721 5499332 100.3 1041 1.6 448722 5499593 100.4 810 1.3 448721 5500504 100.5 814 1.1 448832 5498136 110.1 343 1.6 448826 5498672 110.2 894 1.4 448821 5499361 110.3 691 2.2 448819 5499601 110.4 1015 1.7 448820 5500601 100.5 1230 1 448922 5498114 120.1 421 0.8 448917 5498695 120.2 775 1.1 448921 5499253 120.3 534 2.2 448917 5499660 120.4 1799 0.9 448929 5500629 120.5 777 1 449019 5498183 130.1 332 0 449018 5498725 130.2 1311 1.5 449022 5499171 130.3 358 4.3 449023 5499696 130.4 1090 1.3 449020 5500643 130.5 1446 1.2 449117 5498155 140.1 415 0.2 449130 5498730 140.2 2174 1.1 449121 5499583 140.3 1000 1.3 449121 5500667 140.4 934 1.9 449219 5498155 150.1 335 1.4 449217 5498409 150.2 326 2.1 449217 5499640 150.3 567 1.2 449218 5500669 150.4 1123 1.3 449328 5498170 160.1 338 0.2 449323 5498346 160.2 330 1.7 449322 5498745 160.3 1301 1.4 449324 5499556 160.4 349 1 449315 5500702 160.5 831 1.3 449405 5498162 170.1 274 3.3 449429 5498492 170.2 264 2.7 449422 5498764 170.3 627 1.2 449421 5499571 170.4 528 1.3 449418 5500710 170.5 616 2.1 449520 5498251 180.1 230 1.6 449518 5498421 180.2 294 1.1 449521 5498795 180.3 717 1.5 449519 5499544 180.4 558 2.5 449523 5499739 180.5 372 0.6 449518 5500770 180.6 461 2 449603 5498168 190.1 215 2.2

HELIBORNE MAGNETIC AND ELECTROMAGNETIC SURVEY, TLC EXPLORATIONS, ON – 2008 23

PROSPECTAIR – MBGEOSOLUTIONS

449619 5498423 190.2 277 1.9 449620 5498799 190.3 637 0.9 449613 5499459 190.4 327 0.9 449617 5499626 190.5 418 1.3 449622 5500719 190.6 534 1.5 449725 5498199 200.1 183 0 449719 5498471 200.2 312 2.5 449721 5498792 200.3 976 1.2 449724 5499607 200.4 598 2 449733 5500775 200.5 562 1.6 449819 5498246 210.1 175 0.5 449822 5498528 210.2 203 1.4 449823 5498794 210.3 761 1 449834 5499640 210.4 339 1.4 449812 5500731 210.5 545 1.3 449921 5498199 220.1 189 1.8 449921 5498374 220.2 235 1.8 449918 5498812 220.3 1585 1.2 449920 5499557 220.4 667 1 449922 5499908 220.5 311 1.4 449915 5500781 220.6 582 1.9 450022 5498786 230.1 1892 1.3 450017 5499599 230.2 475 1.1 450022 5499851 230.3 589 2.3 450021 5500766 230.4 900 1.7 450125 5498771 240.1 1958 1.2 450118 5499642 240.2 457 1.1 450122 5500737 240.3 381 1.3 450222 5498780 250.1 2039 1.3 450213 5499682 250.2 397 0 450219 5500751 250.3 616 0 450315 5498211 260.1 227 0 450319 5498785 260.2 1285 0.9 450322 5499640 260.3 373 0.3 450323 5500796 260.4 584 0.8 450421 5498806 270.1 3316 1 450413 5499650 270.2 324 0.9 450420 5500811 270.3 736 1.4 450518 5498176 280.1 237 0 450521 5498811 280.2 1352 1.3 450518 5499405 280.3 282 0 450517 5499649 228.4 376 0.9 450519 5500761 280.5 952 1.5 450632 5498220 290.1 152 2.3 450623 5498848 290.1 1004 0.8 450617 5499649 290.3 424 1.5 450612 5500811 290.4 648 0.6

24 HELIBORNE MAGNETIC AND ELECTROMAGNETIC SURVEY, TLC EXPLORATIONS, ON – 2008

PROSPECTAIR – MBGEOSOLUTIONS

450620 5498132 291.1 205 0 450617 5498831 291.2 1123 1 450622 5499661 291.3 512 2 450630 5500802 291.4 467 4 450724 5498132 300.1 231 0.3 450718 5498831 300.2 1056 1.2 450719 5499728 300.3 418 0.7 450725 5500773 300.4 366 1.4 450828 5498114 310.1 214 4.9 450817 5498858 310.2 1569 1 450817 5499694 310.3 937 0.9 450815 5500871 310.4 321 1.7 450917 5498114 320.1 217 0.7 450920 5498890 320.2 1356 1.4 450920 5499701 320.3 610 0.3 450922 5500901 320.4 304 0.4 450917 5498865 321.1 1634 1.2 450923 5499622 321.2 375 2.3 450920 5500880 321.3 471 0.8 451028 5498092 330.1 176 0 451024 5498857 330.2 1452 1.2 451026 5499731 330.3 402 0.5 451022 5499922 330.4 378 1 451025 5500788 330.5 550 0.6 451122 5498886 340.1 1345 1.3 451116 5499677 340.2 366 1 451119 5499969 340.3 371 2.7 451118 5500812 340.4 680 1 451221 5498876 350.1 1372 1.4 451224 5499667 350.2 330 2 451218 5499948 350.3 443 2.1 451223 5500794 350.4 767 0.6 451329 5498529 360.1 458 0.8 451322 5498906 360.2 1492 1.2 451318 5499789 360.3 470 1.7 451323 5500099 360.4 301 2.4 451316 5500911 360.5 529 1.2 451428 5498480 370.1 608 1.2 451424 5498873 370.2 1285 1.3 451421 5499720 370.3 1169 1 451422 5500874 370.4 695 0.6 451528 5498534 380.1 473 2 451523 5498903 380.2 730 1.2 451522 5499866 380.3 688 0.2 451519 5500909 380.4 755 0.5 451621 5498511 390.1 613 1.2 451623 5498895 390.2 505 0.3

HELIBORNE MAGNETIC AND ELECTROMAGNETIC SURVEY, TLC EXPLORATIONS, ON – 2008 25

PROSPECTAIR – MBGEOSOLUTIONS

451626 5499777 390.3 728 1.5 451617 5500912 390.4 758 1.2 451730 5498494 400.1 572 1.2 451722 5498945 400.2 436 1.4 451723 5499757 400.3 877 1.5 451721 5500898 400.4 852 1.6 451813 5498325 410.1 471 0.9 451818 5498516 410.2 315 2.6 451817 5498878 410.3 305 0.3 451820 5499734 410.4 592 1.6 451813 5500798 410.5 984 1.1 451929 5498284 420.1 414 1.8 451923 5498526 420.2 386 2.9 451922 5498938 420.3 216 2.8 451919 5499849 420.4 615 2.2 451923 5500784 420.5 612 1.5 452019 5498308 430.1 323 0.3 452018 5498943 430.2 405 0.6 452018 5499801 430.3 768 1.9 452015 5500779 430.4 1055 1.1 452127 5498347 440.1 323 1.6 452127 5498615 440.2 256 1.9 452124 5498930 440.3 374 1.4 452124 5499807 440.4 560 1.3 452121 5500824 440.5 699 1.2 452219 5498328 450.1 365 1.1 452222 5498630 450.2 303 2.7 452220 5498918 450.3 862 1 452221 5499788 450.4 484 1.1 452213 5500873 450.5 535 2 452326 5498492 460.1 310 1 452320 5498922 460.2 877 1 452324 5499965 460.3 357 1.5 452321 5500972 460.4 628 1.4 452421 5498932 470.1 878 0.7 452413 5499907 470.2 473 0.5 452420 5500845 470.3 354 1.8 452527 5498379 480.1 343 5.9 452525 5498627 480.2 406 0.7 452521 5498936 480.3 1065 1.6 452521 5499865 480.4 779 1.1 452522 5500926 480.5 1451 1.1 452618 5498594 490.1 1561 1 452619 5498933 490.2 702 0.8 452618 5499889 490.3 971 1 452623 5500879 490.4 341 0 452726 5498533 500.1 441 1.1

26 HELIBORNE MAGNETIC AND ELECTROMAGNETIC SURVEY, TLC EXPLORATIONS, ON – 2008

PROSPECTAIR – MBGEOSOLUTIONS

452727 5498917 500.2 1012 0.8 452716 5499922 500.3 712 1.2 452719 5500843 500.4 616 4 452715 5501026 500.5 436 1.4 452818 5498508 510.1 454 1.2 452823 5498924 510.2 2084 1.2 452819 5499894 510.3 697 0.9 452823 5500490 510.4 527 0 452818 5500940 510.5 268 0.7 452928 5498625 520.1 660 1.4 452920 5498925 520.2 2440 1.1 452925 5499964 520.3 590 0.9 452921 5500398 520.4 227 18 452928 5500973 520.5 307 0 453023 5498558 530.1 603 3 453019 5498894 530.2 1722 1.1 453018 5499995 530.3 483 2.7 453023 5500409 530.4 358 2 453010 5500994 530.5 363 0 453127 5498656 540.1 634 0.9 453122 5498919 540.2 2147 1.2 453120 5500001 540.3 740 0.7 453125 5500460 540.4 776 0.8 453114 5501066 540.5 395 1.2 453219 5498927 550.1 1427 1.2 453221 5500026 550.2 505 1.2 453220 5501008 550.3 212 2.5 453321 5498857 560.1 1265 0.8 453323 5499625 560.2 605 2.1 453320 5500029 560.3 1157 1.2 453320 5500968 560.4 577 1.2 453418 5498850 570.1 1291 1.2 453417 5499564 570.2 425 1.6 453419 5499996 570.3 663 1 453374 5500929 570.4 330 0 453522 5498910 580.1 1578 1.3 453520 5499713 580.2 344 2.5 453526 5500046 580.3 569 1.7 453520 5500984 580.4 359 1.7 453613 5498919 590.1 1240 1.2 453625 5499606 590.2 490 1.2 453621 5499996 590.3 562 1.1 453630 5500968 590.4 492 0.5 453722 5498955 600.1 1442 1.1 453723 5499585 600.2 1638 1.5 453719 5500013 600.3 882 0.7 453719 5500942 600.4 370 1.5

HELIBORNE MAGNETIC AND ELECTROMAGNETIC SURVEY, TLC EXPLORATIONS, ON – 2008 27

PROSPECTAIR – MBGEOSOLUTIONS

453821 5498878 610.1 381 1.1 453820 5499578 610.2 1163 0.7 453818 5500005 610.3 544 0.8 453818 5500941 610.4 424 1 453914 5498830 620.1 317 1.3 453923 5499133 620.2 216 2.1 453917 5499623 620.3 380 1.8 453912 5500064 620.4 661 1.2 454020 5498778 630.1 276 2.1 454025 5499200 630.2 334 0.3 454022 5499664 630.3 227 1.2 454016 5500076 630.4 950 1 454119 5498817 640.1 402 0.9 454123 5499191 640.2 200 1.6 454119 5500039 640.3 1112 1.7 454123 5500671 640.4 432 0 454223 5498909 650.1 331 1.2 454215 5499987 650.2 1488 1.5 454227 5500678 650.3 391 1.3 454319 5498907 660.1 327 1.6 454322 5499983 660.2 1447 1.1

28 HELIBORNE MAGNETIC AND ELECTROMAGNETIC SURVEY, TLC EXPLORATIONS, ON – 2008

PROSPECTAIR – MBGEOSOLUTIONS

APPENDIX B : Statements of qualification

Marc Boivin 4380 Jérémie

Québec, QC, Canada, G2C 1B3

Telephone: 418-951-4035 E-mail: [email protected]

I, Marc Boivin, P.Geo, do hereby certify that:

1. I am an independent consulting geophysicist, registered in Quebec under MB

Geosolutions.

2. I earned a Bachelor of Science in Geology in 1983 at Université du Québec à

Montréal.

3. I am a Professional Geoscientist registered with the Ordre des Géologues du Québec, No. 351.

4. I have practised my profession for 24 years in mining exploration geophysics.

5. I have not received and do not expect to receive a direct or indirect interest in the

properties covered by this report or in TLC Explorations.

.

Dated this 8th of December, 2008

___________________________ Marc Boivin, P.Geo., (OGQ) #351

HELIBORNE MAGNETIC AND ELECTROMAGNETIC SURVEY, TLC EXPLORATIONS, ON – 2008 29

PROSPECTAIR – MBGEOSOLUTIONS

Eric Desaulniers 6 Chemin des Bouleaux

L’Ange-Gardien, QC, Canada, J8L 2W7

Telephone: 819-923-0333 E-mail: [email protected]

Statement of Qualifications

I, Eric Desaulniers, P.Geo, do hereby certify that:

1. I’m independent consulting geophysicist, registered in Quebec under ED Exploration.

2. I earned a Bachelor of Science in Geology in 2002 and a Master of Science in 2005 from Université Laval in Quebec city.

3. I am a Professional Geoscientist registered with the Ordre des Géologues du Québec, No. 935.

4. I have practised my profession for 3 years in exploration geophysics. 5. I have not received and do not expect to receive a direct or indirect interest in the

properties covered by this report or in TLC Explorations.

Dated this 8th of December, 2008

___________________________ Eric Desaulniers, P.Geo., #935

57450

57482

57509

57527

57541

57553

57565

57577

57587

57597

57607

57616

57628

57640

57653

57666

57678

57690

57703

57718

57732

57748

57763

57780

57799

57823

57848

57880

57915

57953

57991

58034

58082

58144

58222

58338

58508

58751

TMI(nT)

200 0 200 400 600

(meters)

WGS 84 / UTM zone 16N

Scale 1:10000

Advantel Dominica Project

EMosquito TDEM-MAG surveyEM interpretation map

Survey flown by Prospectair Inc in October 2008Processing by Prospectair Inc

Interpreted by Eric Desaulniers, P.GeoSupervised by Marc Boivin, P.Geo

MB Geosolutions

TLC EXPLORATIONS

10.1

10.2

10.4

10.3

10.4

20.1

20.2

20.3

20.4

30.1

30.2

30.3

30.4

30.5

40.1

40.2

40.3

40.4

40.5

50.150.1

50.2

50.5

60.1

60.2

60.3

60.4

60.5

70.1

70.2

70.3

70.4

70.5

80.1

80.1

80.2

80.3

80.4

80.5

90.1

90.2

90.3

90.4

90.5

100.1

100.2

100.3

100.4

100.5

110.1

110.2

110.3

110.4

100.5

120.1

120.2

120.3

120.4

120.5

130.1

130.2

130.3

130.4

130.5

140.1

140.2

140.3

140.4

150.1

150.2

150.3

150.4

160.1

160.2

160.3

160.4

160.5

170.1

170.2

170.3

170.4

170.5

180.1

180.2

180.3

180.4

180.5

180.6

190.1

190.2

190.3

190.4

190.5

190.6

200.1

200.2

200.3

200.4

200.5

210.1

210.2

210.3

210.4

210.5

220.1

220.2

220.3

220.4

220.5

220.6

230.1

230.2

230.3

230.4

240.1

240.2

240.3

250.1

250.2

250.3

260.1

260.2

260.3

260.4

270.1

270.2

270.3

280.1

280.2

280.3

228.4

280.5

291.1

291.2

291.3

291.4

300.1

300.2

300.3

300.4

310.1

310.2

310.3

310.4

320.1

321.1

321.2

321.3

330.1

330.2

330.3

330.4

330.5

340.1

340.2

340.3

340.4

350.1

350.2

350.3

350.4

360.1

360.2

360.3

360.4

360.5

370.1

370.2

370.3

370.4

380.1

380.2

380.3

380.4

390.1

390.2

390.3

390.4

400.1

400.2

400.3

400.4

410.1

410.2

410.3

410.4

410.5

420.1

420.2

420.3

420.4

420.5

430.1

430.2

430.3

430.4

440.1

440.2

440.3

440.4

440.5

450.1

450.2

450.3

450.4

450.5

460.1

460.2

460.3

460.4

470.1

470.2

470.3

480.1

480.2

480.3

480.4

480.5

490.1

490.2

490.3

490.4

500.1

500.2

500.3

500.4

500.5

510.1

510.2

510.3

510.4

510.5

520.1

520.2

520.3

520.4

520.5

530.1

530.2

530.3

530.4

530.5

540.1

540.2

540.3

540.4

540.5

550.1

550.2

550.3

560.1

560.2

560.3

560.4

570.1

570.2

570.3

570.4

580.1

580.2

580.3

580.4

590.1

590.2

590.3

590.4

600.1

600.2

600.3

600.4

610.1

610.2

610.3

610.4

620.1

620.2

620.3

620.4

630.1

630.2

630.3

630.4

640.1

640.2

640.3

640.4

650.1

650.2

650.3

660.1

660.2

0.3

1.2

1.2

1.0

2.0

2.4

0.0

2.3

1.1

0.0

1.4

5.9

0.7

1.5

0.0

0.9

1.0

0.2

1.2

4.34.5

1.4

2.0

0.5

1.3

1.6

1.5

0.6

0.0

0.0

1.8

1.4

1.7

0.0

1.0

0.0

1.3

1.0

1.2

0.0

0.3

1.1

0.0

1.3

0.0

0.9

1.6

1.3

1.1

1.6

1.4

2.2

1.7

1.0

0.8

1.1

2.2

0.9

1.0

0.0

1.5

4.3

1.3

1.2

0.2

1.1

1.3

1.9

1.4

2.1

1.2

1.3

0.2

1.7

1.4

1.0

1.3

3.3

2.7

1.2

1.3

2.1

1.6

1.1

1.5

2.5

0.6

2.0

2.2

1.9

0.9

0.9

1.3

1.5

0.0

2.5

1.2

2.0

1.6

0.5

1.4

1.0

1.4

1.3

1.8

1.8

1.2

1.0

1.4

1.9

1.3

1.1

2.3

1.7

1.2

1.1

1.3

1.3

0.0

0.0

0.0

0.9

0.3

0.8

1.0

0.9

1.4

0.0

1.3

0.0

0.9

1.5

0.0

1.0

2.0

4.0

0.3

1.2

0.7

1.4

4.9

1.0

0.9

1.7

0.7

0.3

1.2

2.3

0.8

0.0

1.2

0.5

1.0

0.6

1.3

1.0

2.7

1.0

1.4

2.0

2.1

0.6

0.8

1.2

1.7

2.4

1.2

1.2

1.3

1.0

0.6

2.0

1.2

0.2

0.5

1.2

0.3

1.5

1.2

1.2

1.4

1.5

1.6

0.9

2.6

0.3

1.6

1.1

1.8

2.9

2.8

2.2

1.5

0.3

0.6

1.9

1.1

1.6

1.9

1.4

1.3

1.2

1.1

2.7

1.0

1.1

2.0

1.0

1.0

1.5

1.4

0.7

0.5

1.8

5.9

0.7

1.6

1.1

1.1

1.0

0.8

1.0

0.0

1.1

0.8

1.2

4.0

1.4

1.2

1.2

0.9

0.0

0.7

1.4

1.1

0.9

18.0

0.0

3.0

1.1

2.7

2.0

0.0

0.9

1.2

0.7

0.8

1.2

1.2

1.2

2.5

0.8

2.1

1.2

1.2

1.2

1.6

1.0

0.0

1.3

2.5

1.7

1.7

1.2

1.2

1.1

0.5

1.1

1.5

0.7

1.5

1.1

0.7

0.8

1.0

1.3

2.1

1.8

1.2

2.1

0.3

1.2

1.0

0.9

1.6

1.7

0.0

1.2

1.5

1.3

1.6

1.1

5498000

5498500

5499000

5499500

5500000

5500500

5501000

5498000

5498500

5499000

5499500

5500000

5500500

5501000

448000 448500 449000 449500 450000 450500 451000 451500 452000 452500 453000 453500 454000

448000 448500 449000 449500 450000 450500 451000 451500 452000 452500 453000 453500 454000

49°38'

49°38'15"

49°38'30"

49°38'45"

49°39'

49°39'15"

49°39'30"

49°39'45"

49°38'

49°38'15"

49°38'30"

49°38'45"

49°39'

49°39'15"

49°39'30"

49°39'45"

-87°43' -87°42' -87°41' -87°40' -87°39' -87°38'

-87°43' -87°42' -87°41' -87°40' -87°39' -87°38'

<L10 E

<L10 E

<L20 E

<L20 E

<L30 E

<L30 E

<L40 E

<L40 E

<L50 E

<L50 E

<L60 E

<L60 E

<L70 E

<L70 E

<L80 E

<L80 E

<L90 E

<L90 E

<L100 E

<L100 E

<L110 E

<L110 E

<L120 E

<L120 E

<L130 E

<L130 E

<L140 E

<L140 E

<L150 E

<L150 E

<L160 E

<L160 E

<L170 E

<L170 E

<L180 E

<L180 E

<L190 E

<L190 E

<L200 E

<L200 E

<L210 E

<L210 E

<L220 E

<L220 E

<L230 E

<L230 E

<L240 E

<L240 E

<L250 E

<L250 E

<L260 E

<L260 E

<L270 E

<L270 E

<L280 E

<L280 E

<L290 E

<L290 E

<L291 E

<L291 E

<L300 E

<L300 E

<L310 E

<L310 E

<L320 E

<L320 E

<L321 E

<L321 E

<L330 E

<L330 E

<L340 E

<L340 E

<L350 E

<L350 E

<L360 E

<L360 E

<L370 E

<L370 E

<L380 E

<L380 E

<L390 E

<L390 E

<L400 E

<L400 E

<L410 E

<L410 E

<L420 E

<L420 E

<L430 E

<L430 E

<L440 E

<L440 E

<L450 E

<L450 E

<L460 E

<L460 E

<L470 E

<L470 E

<L480 E

<L480 E

<L490 E

<L490 E

<L500 E

<L500 E

<L510 E

<L510 E

<L520 E

<L520 E

<L530 E

<L530 E

<L540 E

<L540 E

<L550 E

<L550 E

<L560 E

<L560 E

<L570 E

<L570 E

<L580 E

<L580 E

<L590 E

<L590 E

<L600 E

<L600 E

<L610 E

<L610 E

<L620 E

<L620 E

<L630 E

<L630 E

<L640 E

<L640 E

<L650 E

<L650 E

<L660 E

<L660 E

T1001 N>

T1001 N>

T1002 N> T1002 N>

T1003 N>T1003 N>

200 0 200 400 600

(meters)

WGS 84 / UTM zone 16N

Scale 1:10000

TLC EXPLORATIONS

EMosquito TDEM-MAG surveyEM interpretation map

Survey flown by Prospectair Inc in October 2008Processing by Prospectair Inc

Interpreted by Eric Desaulniers, P.GeoSupervised by Marc Boivin, P.Geo

MB Geosolutions

Advantel Dominica Project

10.1

10.2

10.4

10.3

10.4

20.1

20.2

20.3

20.4

30.1

30.2

30.3

30.4

30.5

40.1

40.2

40.3

40.4

40.5

50.150.1

50.2

50.5

60.1

60.2

60.3

60.4

60.5

70.1

70.2

70.3

70.4

70.5

80.1

80.1

80.2

80.3

80.4

80.5

90.1

90.2

90.3

90.4

90.5

100.1

100.2

100.3

100.4

100.5

110.1

110.2

110.3

110.4

100.5

120.1

120.2

120.3

120.4

120.5

130.1

130.2

130.3

130.4

130.5

140.1

140.2

140.3

140.4

150.1

150.2

150.3

150.4

160.1

160.2

160.3

160.4

160.5

170.1

170.2

170.3

170.4

170.5

180.1

180.2

180.3

180.4

180.5

180.6

190.1

190.2

190.3

190.4

190.5

190.6

200.1

200.2

200.3

200.4

200.5

210.1

210.2

210.3

210.4

210.5

220.1

220.2

220.3

220.4

220.5

220.6

230.1

230.2

230.3

230.4

240.1

240.2

240.3

250.1

250.2

250.3

260.1

260.2

260.3

260.4

270.1

270.2

270.3

280.1

280.2

280.3

228.4

280.5

291.1

291.2

291.3

291.4

300.1

300.2

300.3

300.4

310.1

310.2

310.3

310.4

320.1

321.1

321.2

321.3

330.1

330.2

330.3

330.4

330.5

340.1

340.2

340.3

340.4

350.1

350.2

350.3

350.4

360.1

360.2

360.3

360.4

360.5

370.1

370.2

370.3

370.4

380.1

380.2

380.3

380.4

390.1

390.2

390.3

390.4

400.1

400.2

400.3

400.4

410.1

410.2

410.3

410.4

410.5

420.1

420.2

420.3

420.4

420.5

430.1

430.2

430.3

430.4

440.1

440.2

440.3

440.4

440.5

450.1

450.2

450.3

450.4

450.5

460.1

460.2

460.3

460.4

470.1

470.2

470.3

480.1

480.2

480.3

480.4

480.5

490.1

490.2

490.3

490.4

500.1

500.2

500.3

500.4

500.5

510.1

510.2

510.3

510.4

510.5

520.1

520.2

520.3

520.4

520.5

530.1

530.2

530.3

530.4

530.5

540.1

540.2

540.3

540.4

540.5

550.1

550.2

550.3

560.1

560.2

560.3

560.4

570.1

570.2

570.3

570.4

580.1

580.2

580.3

580.4

590.1

590.2

590.3

590.4

600.1

600.2

600.3

600.4

610.1

610.2

610.3

610.4

620.1

620.2

620.3

620.4

630.1

630.2

630.3

630.4

640.1

640.2

640.3

640.4

650.1

650.2

650.3

660.1

660.2

0.3

1.2

1.2

1.0

2.0

2.4

0.0

2.3

1.1

0.0

1.4

5.9

0.7

1.5

0.0

0.9

1.0

0.2

1.2

4.34.5

1.4

2.0

0.5

1.3

1.6

1.5

0.6

0.0

0.0

1.8

1.4

1.7

0.0

1.0

0.0

1.3

1.0

1.2

0.0

0.3

1.1

0.0

1.3

0.0

0.9

1.6

1.3

1.1

1.6

1.4

2.2

1.7

1.0

0.8

1.1

2.2

0.9

1.0

0.0

1.5

4.3

1.3

1.2

0.2

1.1

1.3

1.9

1.4

2.1

1.2

1.3

0.2

1.7

1.4

1.0

1.3

3.3

2.7

1.2

1.3

2.1

1.6

1.1

1.5

2.5

0.6

2.0

2.2

1.9

0.9

0.9

1.3

1.5

0.0

2.5

1.2

2.0

1.6

0.5

1.4

1.0

1.4

1.3

1.8

1.8

1.2

1.0

1.4

1.9

1.3

1.1

2.3

1.7

1.2

1.1

1.3

1.3

0.0

0.0

0.0

0.9

0.3

0.8

1.0

0.9

1.4

0.0

1.3

0.0

0.9

1.5

0.0

1.0

2.0

4.0

0.3

1.2

0.7

1.4

4.9

1.0

0.9

1.7

0.7

1.2

2.3

0.8

0.0

1.2

0.5

1.0

0.6

1.3

1.0

2.7

1.0

1.4

2.0

2.1

0.6

0.8

1.2

1.7

2.4

1.2

1.2

1.3

1.0

0.6

2.0

1.2

0.2

0.5

1.2

0.3

1.5

1.2

1.2

1.4

1.5

1.6

0.9

2.6

0.3

1.6

1.1

1.8

2.9

2.8

2.2

1.5

0.3

0.6

1.9

1.1

1.6

1.9

1.4

1.3

1.2

1.1

2.7

1.0

1.1

2.0

1.0

1.0

1.5

1.4

0.7

0.5

1.8

5.9

0.7

1.6

1.1

1.1

1.0

0.8

1.0

0.0

1.1

0.8

1.2

4.0

1.4

1.2

1.2

0.9

0.0

0.7

1.4

1.1

0.9

18.0

0.0

3.0

1.1

2.7

2.0

0.0

0.9

1.2

0.7

0.8

1.2

1.2

1.2

2.5

0.8

2.1

1.2

1.2

1.2

1.6

1.0

0.0

1.3

2.5

1.7

1.7

1.2

1.2

1.1

0.5

1.1

1.5

0.7

1.5

1.1

0.7

0.8

1.0

1.3

2.1

1.8

1.2

2.1

0.3

1.2

1.0

0.9

1.6

1.7

0.0

1.2

1.5

1.3

1.6

1.1

5498000

5498500

5499000

5499500

5500000

5500500

5501000

5498000

5498500

5499000

5499500

5500000

5500500

5501000

448000 448500 449000 449500 450000 450500 451000 451500 452000 452500 453000 453500 454000

448000 448500 449000 449500 450000 450500 451000 451500 452000 452500 453000 453500 454000

49°38'

49°38'15"

49°38'30"

49°38'45"

49°39'

49°39'15"

49°39'30"

49°39'45"

49°38'

49°38'15"

49°38'30"

49°38'45"

49°39'

49°39'15"

49°39'30"

49°39'45"

-87°43' -87°42' -87°41' -87°40' -87°39' -87°38'

-87°43' -87°42' -87°41' -87°40' -87°39' -87°38'

<L10 E

<L10 E

<L20 E

<L20 E

<L30 E

<L30 E

<L40 E

<L40 E

<L50 E

<L50 E

<L60 E

<L60 E

<L70 E

<L70 E

<L80 E

<L80 E

<L90 E

<L90 E

<L100 E

<L100 E

<L110 E

<L110 E

<L120 E

<L120 E

<L130 E

<L130 E

<L140 E

<L140 E

<L150 E

<L150 E

<L160 E

<L160 E

<L170 E

<L170 E

<L180 E

<L180 E

<L190 E

<L190 E

<L200 E

<L200 E

<L210 E

<L210 E

<L220 E

<L220 E

<L230 E

<L230 E

<L240 E

<L240 E

<L250 E

<L250 E

<L260 E

<L260 E

<L270 E

<L270 E

<L280 E

<L280 E

<L290 E

<L290 E

<L291 E

<L291 E

<L300 E

<L300 E

<L310 E

<L310 E

<L320 E

<L320 E

<L321 E

<L321 E

<L330 E

<L330 E

<L340 E

<L340 E

<L350 E

<L350 E

<L360 E

<L360 E

<L370 E

<L370 E

<L380 E

<L380 E

<L390 E

<L390 E

<L400 E

<L400 E

<L410 E

<L410 E

<L420 E

<L420 E

<L430 E

<L430 E

<L440 E

<L440 E

<L450 E

<L450 E

<L460 E

<L460 E

<L470 E

<L470 E

<L480 E

<L480 E

<L490 E

<L490 E

<L500 E

<L500 E

<L510 E

<L510 E

<L520 E

<L520 E

<L530 E

<L530 E

<L540 E

<L540 E

<L550 E

<L550 E

<L560 E

<L560 E

<L570 E

<L570 E

<L580 E

<L580 E

<L590 E

<L590 E

<L600 E

<L600 E

<L610 E

<L610 E

<L620 E

<L620 E

<L630 E

<L630 E

<L640 E

<L640 E

<L650 E

<L650 E

<L660 E

<L660 E

T1001 N>

T1001 N>

T1002 N> T1002 N>

T1003 N>T1003 N>

57450

57482

57509

57527

57541

57553

57565

57577

57587

57597

57607

57616

57628

57640

57653

57666

57678

57690

57703

57718

57732

57748

57763

57780

57799

57823

57848

57880

57915

57953

57991

58034

58082

58144

58222

58338

58508

58751

TMI(nT)

200 0 200 400 600

(meters)

WGS 84 / UTM zone 16N

Scale 1:10000

Advantel Dominica Project

EMosquito TDEM-MAG surveyTotal Magnetic Intensity Map

Survey flown by Prospectair Inc in October 2008Interpreted by Eric Desaulniers, P.GeoSupervised by Marc Boivin, P.Geo

MB Geosolutions

TLC EXPLORATIONS

5498000

5498500

5499000

5499500

5500000

5500500

5501000

5498000

5498500

5499000

5499500

5500000

5500500

5501000

448000 448500 449000 449500 450000 450500 451000 451500 452000 452500 453000 453500 454000

448000 448500 449000 449500 450000 450500 451000 451500 452000 452500 453000 453500 454000

49°38'

49°38'15"

49°38'30"

49°38'45"

49°39'

49°39'15"

49°39'30"

49°39'45"

49°38'

49°38'15"

49°38'30"

49°38'45"

49°39'

49°39'15"

49°39'30"

49°39'45"

-87°43' -87°42' -87°41' -87°40' -87°39' -87°38'

-87°43' -87°42' -87°41' -87°40' -87°39' -87°38'

5 7 6 0 0

5 7 6 0 0

57600

5 76 0

0

57600

57600

0067

50 0 6 7 5

00

67

5

00

67

5

0 06 7 5

0 0 6 7 5

0 0 6 7 5

0 06 7

5

00

675 0

06

75

5 7 6 0 0

5 7 6 0 0

00

67

5

57600

5 7 8 0 0

5 7 8 0 0

57800

5 7 8 00

5 7 8 0 0

0 0 8 7 5

0 08 7 5

00

87 5

0 0 8 7 5

00875

00875

57800

57800

57800

57800

5 7 80 0

57800

00

87

55 7 8

0 0

5 8 2 0 0

5 82 0 0

5 8200

58200

5 8 2 0 0

58200 5 82 0

0

0028500

28

5

0 0 2 8 5

58400

5 84 0

0

5 84 0 0

5840

0

58400

58400

584000048

5

0 0 4 85

5 8 6 0 0

5 86 0

0

00685

0 0 6 8 5

5 8600

58800

5 8 800

5 8800

59 2 0 0

5 9400

5 800 0

5 80 0 0

58000

58000

5 8 0 0 0

58000

00085

00085

00

08 5

0 00 8

5

00

08

5

0 0 0 8 5

5 8 0 0 0

5 8 00 0

58000

5 8 0 00

5 8 00 0 5 9 0 0 0

<L10 E

<L10 E

L20 E>

L20 E>

<L30 E

<L30 E

L40 E>

L40 E>

<L50 E

<L50 E

L60 E>

L60 E>

<L70 E

<L70 E

L80 E>

L80 E>

<L90 E

<L90 E

L100 E>

L100 E>

<L110 E

<L110 E

L120 E>

L120 E>

<L130 E

<L130 E

L140 E>

L140 E>

<L150 E

<L150 E

L160 E>

L160 E>

<L170 E

<L170 E

L180 E>

L180 E>

<L190 E

<L190 E

L200 E>

L200 E>

<L210 E

<L210 E

L220 E>

L220 E>

<L230 E

<L230 E

L240 E>

L240 E>

<L250 E

<L250 E

L260 E>

L260 E>

<L270 E

<L270 E

L280 E>

L280 E>

<L281 E

<L281 E

L290 E>

L290 E>

<L291 E

<L291 E

L292 E>

L292 E>

<L300 E

<L300 E

L301 E>

L301 E>

L302 E>

L302 E>

L310 E>

L310 E>

<L311 E

<L311 E

<L320 E

<L320 E

L321 E>

L321 E>

L330 E>

L330 E>

<L340 E

<L340 E

L350 E>

L350 E>

<L360 E

<L360 E

L370 E>

L370 E>

<L380 E

<L380 E

L390 E>

L390 E>

<L400 E

<L400 E

L410 E>

L410 E>

<L420 E

<L420 E

L430 E>

L430 E>

<L440 E

<L440 E

L450 E>

L450 E>

<L460 E

<L460 E

L470 E>

L470 E>

<L480 E

<L480 E

L490 E>

L490 E>

<L500 E

<L500 E

L510 E>

L510 E>

<L520 E

<L520 E

L530 E>

L530 E>

<L540 E

<L540 E

L550 E>

L550 E>

<L560 E

<L560 E

L570 E>

L570 E>

<L580 E

<L580 E

L590 E>

L590 E>

<L600 E

<L600 E

L610 E>

L610 E>

<L620 E

<L620 E

L630 E>

L630 E>

<L640 E

<L640 E

L650 E>

L650 E>

<L660 E

<L660 E

T1001 N>T1001 N>

<T1002 N <T1002 N

T1003 N>

T1003 N>