The Polaris Joint Venture (PJV) was a large-scale five ...
Transcript of The Polaris Joint Venture (PJV) was a large-scale five ...
Mud
Minnewawa
SandyRiver
Flowage
BigSandy
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Echo
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Artichoke
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Elliot
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Winchester
Susan
Ban
Elbow
Kjostad
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Hoodoo
Moose
Elephant
Pelican
BlackDuck
Prairie
Long
Ash
Perch
LowerTwin
Blueberry
Stocking
TurtlePietroGabbro
Bartlett Clearwater
Three
Greenstone
Sunset
Straight
Edna
Blind
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EsquagamahWaukenabo
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Trout
Bluewater
Wasson
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Bootleg
Puposky
Campbell
Black
LittleBass
Swenson
Long
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Big Rice
Big Rush
Aitkin
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Long
UpperRice
Hart
LittleMantrap
Hattie
George
Bad Axe
Blue
Boulder
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WestCrooked Middle
Crooked
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Horseshoe
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Lomish
Laura
LittleSand
Big Rice
Vermillion
Birch
West Fox
Eagle
Greer
Adney
Dahler
Mary Lows
UpperDean
Nelson
Birch(Canada)
Iron(Canada)
GilbertPit
LittleSturgeon
West TwoRivers
Reservoir
SturgeonSide
Floodwood
Fourteen
Lizzie
Sibley
Embarrass
Rush
Armstrong
Linwood
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Johnson
One Pine
Big
Round
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North BranchKawishiwi
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WhiteOak
SevenBeaver
Bog
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LowerPigeon
BaldEagle
Two
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Four
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Lost
Esquagama
Strand
Crooked (Canada)
BasswoodRiver
Crooked
Allen
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Portage
Ely
Sand
LittleWinnibigoshish
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LittleTurtle
Island
FirstCrowWing
FourthCrow Wing
ThirdCrowWing
EighthCrow Wing
Daggett
Cross LakeReservoir
LittlePine
Ten Mile
Clearwater
Turtle
Elk
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Akeley
Aurora
Babbitt
Backus
Bena
BigFalls
Bigfork
Biwabik
Blackduck
Bovey
BoyRiver
BreezyPoint
Brookston
Buhl
Calumet
CassLake
ChickamawBeach
Chisholm
Clearbrook
Cloquet
Cohasset
Coleraine
Cook
Cromwell
Crosslake
DeerRiver
Effie
Ely
Emily
Eveleth
FederalDam
FiftyLakes
Floodwood
Funkley
Gilbert
Gonvick
Hackensack
Hermantown
Hibbing
HillCity
HoytLakes
IronJunction
Jenkins
Keewatin
Kelliher
Kinney
La PrairieLaporte
Leonard
Leonidas
Longville
ManhattanBeach
Marble
McGregor
McKinley
Meadowlands
Menahga
Mizpah
MountainIron
Nashwauk
Nevis
Nimrod
Northome
Orr
Palisade
PequotLakes
PineRiver
Proctor
Remer
Scanlon
Sebeka
Shevlin
Solway
SquawLake
Taconite
Tamarack
Tenstrike
Thomson
Tower
TurtleRiver
Virginia
Warba
Wilton
Winton
WolfLake
Wrenshall
Wright
Zemple
Bagley
Bemidji
Carlton
GrandRapids
ParkRapids
TwoHarbors
Walker
Duluth
Aqs
Aqs
Aqs
AqlAqgAql
Aqg
Aqg
AqgAmv
Aqg
AqtAqtAvs
Ami
AqgAgm Aqg
Aqg
Aqs
Aqg
Aqa
Aqt Aqs
Aqg
Ami
Aqg
Aqa
Aql
Aqg
Aqa
Aqs
Ami
Aqs
Mlt
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Agd
Aks
Agr
Aks
Mau
AvsAgp Avs
Ami
Amv
Amv
Aag
Agd
Akv
Amv
Avs Avs Akv
Aqg
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AguAmv
AsdAvsAsd
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AmiAsd
Ami
Aqs
Agu
AgtAqa
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AguAmi
Agp
Agt
Amv
Aqp
Agt
AgpAkc
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Amv
Ami
Agd
Avs
AqtAgp
AqaAmi
AagAgtMlg
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AcvAgm
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AgpAgmAsd
Asd
Auv
Amv
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Agu Akv
AqmAcv
Ami
Agr
AmvAscAvs
Amv
Aks
Agr
Agp
Agu
Avs
Aqp Agp
Agm
Avs
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Aqp
AmvAmi
Aif
Mlg
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Aqm
Asg
Ami
Agr
AagAgu
Ami
Auv
Mau
Agt
Agu
AmvAgp
Amv
AvsAgt
Agm
Ami
Asd
AscAgt
Amv
Asd
Ami
Agd
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Amv
Acv
Avs Agt
Avs
Ami
Asc Asd
Pas
Amv
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Ami
Amv
Auv
Agr
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PaiAsg
Acv
Agt
Aqm
Agr
Agr
Agu
AmiAgu
Agm
AgrPaq
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Ami
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Aag
Agp
Agt
PasAgu
Ams
AguAgu
Agm
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Agu
Mau
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Acv
PaiAgd
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Mvu
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Agm
Amm
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Paq
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Agu
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Aag
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Agr
Ami Pas
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AgtAgm
Asc
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AgpPaq
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Mfg
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Bedrock Geology Line TypesFault
Thrust fault
Iron formation
Active state nonferrous metallic mineral leases
Terminated state nonferrous metallic mineral leases (1967-January 2016)
State Nonferrous Metallic Minerals Leases
Primary exploration blocks (Ely, Sturgeon, and Hubbard).
GIS Footprints for Polaris Joint Venture Exploration Documents
Polaris Joint Venture Super Block
Mix of Sub-blocks, HEM sub-blocks, anomaly blocks, or targets. Map labels those features larger than 1 square mile.
Polaris Joint Venture Exploratory Boreholes50 exploratory boreholes related to the Polaris Joint Venture. Sourced from Document ID pjvl-pvjl-1520-86.pdf. Borings are labeled by name.
Expanding the Historical Mineral Exploration Document and Spatial Data Collection at the Minnesota Department of Natural Resources: The Polaris Joint Venture Exploration Collection The Polaris Joint Venture (PJV) was a large-scale five year-long exploration campaign that targeted high-grade Copper-Zinc prospects in the greenstone belts of Northern Minnesota during the early 1980’s. Ernest K. Lehmann & Associates (ELA), in partnership with Getty and Billiton, completed airborne and ground geophysical surveys, geologic mapping, geochemical sampling, and 50 drill holes within a 13,000
square mile study area that stretched roughly from Bemidji to Ely. This collection contains approximately 2,000 PJV-related PDF documents encompassing more than 20,000 pages of exploration data.
Hubbard Block
Sturgeon Block
Ely Area Block
PROFILES
DRILLINGDATA
REPORTS&
MEMOS
MAPS
SOILGEOCHEMISTRYGROUND
GEOPHYSICALSURVEYS
AIRGEOPHYSICAL
SURVEYS
DisclaimerThe State of Minnesota makes no representations or warran-ties express or implied, with respect to the use of the infor-mation contained herein regardless of its format or the means of its transmission. There is no guarantee or representation to the user as to the accuracy, currency, suitabil ity, completeness, usefulness, or reliabil ity of this information for any purpose. The user accepts the information “as is." The State of Minne-sota assumes no responsibil ity for loss or damage incurred as a result of any user’s reliance on this information. All maps, reports, data, and other information contained herein are protected by copyright. Permission is granted to copy and use the materials herein for any lawful noncommercial purpose. Any user of this information agrees not to transmit or provide access to all or any part of this information to another party unless the user shall include with the information a copy of this disclaimer.
Du l u
t h C
o mp l e
x
Du l u
t h C
o mp l e
x
Mesabi Iron Range
Mesabi Iron Range
Red Lake Area
Koochiching Area
St. Louis (Co)Area
Itasca Block
Wadena Area
Vermilion Block
ONTARIO, CANADAMINNESOTA, USA
Archean Bedrock Geology Map Symbols and Label DescriptionsAag Mafic to ultramafic hypabyssal intrusive complexes; gabbro, anorthosite
Acv Calc-alkalic volcanic and volcaniclastic rocks
Agd Granodioritic intrusion
Agm Granite to granodiorite , variably magnetic
Agn Granitic to granodioritic orthogneiss
Agp Gabbro, pyroxenite , peridotite , lamprophyre intrusion
Agr Granitic intrusions
Agt Tonalite , diorite and granodiorite
Agu Granitoid intrusion, undifferentiated or poorly constrained by core and outcrop
Aif Iron-formation
Akc Knife Lake Group volcanic conglomerate, breccia; alkalic , hornblende-bearing
Aks Knife Lake Group volcanogenic l ithic sandstone, siltstone, conglomerate, slate
Akv Knife Lake Group volcanic flows, breccia, and tuff; hornblende-bearing
Ami Mafic plug-like intrusion; typically magnetic
Amm Interlayered volcanic and volcaniclastic rocks; amphibolite grade metamorphism
Amn Amphibolitic to dioritic gneiss
Ams Schist of sedimentary protolith
Amv Mafic metavolcanic rocks; minor volcaniclastic and hypabyssal intrusions
APd Dioritic to granodioritic intrusion of uncertain age
Aqa Amphibolitic schist and gneiss
Aqg Granite-rich migmatite; locally magnetic
Aql Lac La Croix Granite; locally pegmatitic and magnetic
Aqm Quartz monzonite , monzonite , granodiorite; non-magnetic
Aqp Porphyritic quartofeldspathic dike
Aqs Biotite schist, paragneiss, and schist-rich migmatite
Aqt Tonalite- to granodiorite-rich migmatite
Asc Conglomerate, l ithic sandstone, graywacke, mudstone
Asd Syenitic , monzodioritic , or dioritic pluton
Asg Graywacke and mudstone; typically greenschist facies metamorphism
Auv Ultramafic to mafic volcanic and hypabyssal intrusive rocks
Avs Volcanic and volcaniclastic rocks; felsic to intermediate composition
Proterozoic and Mesoproterozoic Bedrock Geology Map SymbolsPai Proterozoic Iron-formation, locally includes basal conglomerate (Biwabik Iron Formation)
P.. Other Proterozoic map units visible on this map are not described in detail . They are
given the same map symbol color.
M.. Mesoproterozoic map units visible on this map are not described in detail . They are
given the same map symbol color.
Hubbard Area 1
Hubbard Area 2 Hubbard Area 4
Hubbard Area 3 Hubbard Area 5
Hubbard Area 6
Hubbard Area 7
Hubbard Area 8
BrisbaneBuffalo Swamp Evergreen Cemetary
Root Cellar
Cognac
CyphersLake
Paquet Lake
Hackensack
BoyHiram
Sturgeon West Area 1
Phoebe
Sturgeon West Area 4
Sturgeon West Area 5Sturgeon West
Area 2
Sturgeon West Area 3
Sturgeon West Area 6
Sturgeon West Area 9Sturgeon West
Area 7
Sturgeon West Area 8
Sturgeon West Area 10
Sturgeon East Area 13Sturgeon East
Area 11
Sturgeon East Area 12
Sturgeon East Area 14
Sturgeon East Area 16 Sturgeon East
Area 18
Sturgeon East Area 17
Bachelor (#60)Rita
Gull Lake
Pimushe Lake
Funk Lake
Morph Meadow
Dunbar (#53)Third River
Inez
Langor
Medicine Lake
Hay O’Brien
Detling Creek
Tolgen
Q4 27B-28H HadenCreek
Cormorant
HumbleConan
MeadowCreek
BullheadLake
HooverCreek
Hornet
Alfalfa (#11)
Pomroy
Sedge #13
No-Tower (#24)
Wildwood (#23)
Herbicide (#27)
Gravel (#29)
Bustic Lake (#12)
Round Lake
West End
Zeisser’s Is
land
East End
Deer LakeNorth
Larson Lake
Anderson Lake
Victoria
ForestLake Ghost Lake
Highland Lake
Sherry LakeWamp Lake
Spring Bear
Holstrum Togo
Thistledew
KlingenpielLake
Lost LakeArea Base
Bear Island AreaNeedleboyLake Area
Skeleton Lake Area
Raspberry Gold
Granite-GreenstoneNeedleboy Lake
SkeletonLake
South Block Tower Area
Ely
Inpu
t Bl
ock
Ely Input Block
Ely Input Block
Ely Input Block
Polaris Joint Venture Bounds
Polaris Joint Venture Bounds
Active iron ore mining for over 120 yearson the Mesabi Iron Range (Biwabik Iron Formation)
LOK-1
ANA-1
SDE-1
COR-1
CON-1
HAD-1HAD-2HAD-3
VAN-1VAN-2VAN-3VAN-4
PLO-1PLO-2
TIT-1TIT-2TIT-3TIT-4
IAP-1
JAN-1
MIR-1MIR-2
GB-1GB-2
KAT-1KAT-2
SOC-1
GUA-1KAI-1KAI-2DRA-1
DRA-2CRI-1
HER-1HER-2HER-3
CAL-1CAL-2CAL-3GAN-1
SNT-1
LIA-1LIA-2LIA-3
PSL-4PSL-5PSL-6PSL-7PSL-8PSL-9
SNT-1
Langor
Boundary Waters Canoe Area Wilderness (BWCAW)
Boundary Waters Canoe Area Wilderness (BWCAW)
Boundary Waters Canoe Area Wilderness (BWCAW)
Boundary Waters Canoe Area Wilderness (BWCAW)
Expanding the Historical Mineral Exploration Document and Spatial Data Collection at the Minnesota Department of Natu-ral Resources: The Polaris Joint Venture Exploration Collection
HANSON, Kevin, REED, Andrea, and FREY, BarryMinnesota Department of Natural Resources, Land & Minerals Division
The Polaris Joint Venture was a large-scale five year-long exploration program targeting copper-zinc prospects in the greenstone belts of northern Minnesota during the early 1980s. Ernest K. Lehmann & As-sociates, in partnership with Getty and Bill iton, completed airborne and ground geophysical surveys, geologic mapping, geochemical sam-pling, and 50 dril l holes within a 13,000 square mile study area that stretched roughly from Bemidji to Ely.
In December 2014, the Lehmann Family Fund donated the Venture’s results and $10,000 to the Minnesota Department of Natural Re-sources (DNR), with the express purpose of having the DNR make the data digitally available to the public . Due to the manageable size of this donation, it also gave the DNR the perfect opportunity to experiment with new ways of managing its historical exploration document collection.
The Lands and Minerals Division's goal for this collection is to pro-tect and preserve the original documents while making them readily accessible to the public via the internet. There are now approxi-mately 20,000 individual pages available online from this collection comprised of 2,056 PDF documents. The documents are associated with 232 mineral exploration footprints in northern Minnesota. The mineral exploration documents include reports, maps, and raw data and are all available through the DNR webpage at:
http://www.dnr.state.mn.us/lands_minerals/polaris/index.html.
From the webpage, the user can search the documents using a Mic-rosoft Excel spreadsheet or a GIS shapefile with online links to as-sociated exploration documents. For an enhanced search, a web map application is available that allows the user to click on a mineral exploration footprint to view (and download) the associated docu-ments. The web map also features background geologic data and DNR state mineral leasing data for reference.
The DNR’s next steps will be to adapt the new historical document management system to accommodate the other mineral exploration collections.
Sturgeon East Area 15
About this map and dataMap was created in February of 2016 at the Minnesota Department of Natural Resources, Division of Lands and Minerals.
Exploration footprints for the Polaris Joint Venture part of an open-fi le data release from the DNR’s Division of Lands and Minerals as of March 7, 2016. These footprints may be updated and refined in the future. Sign up for updates at the Polaris Joint Venture webpage. Exploration dril l holes (n=50) for the Polaris Joint Venture extract-ed from DNR’s Drill Core Database (01/2016). State Nonferrous Metall ic Mineral Leases (01/16) from the DNR’s Division of Lands and Minerals. Bedrock Geology features and descriptions from the Minnesota Geological Survey (MGS) S-21, 2011 version (1:500,000). Roads and Railroads from Minnesota Department of Transportation (MnDOT); BWCAW and Cities from the DNR; Lakes shown are greater than 200 acres and were taken from the DNR.
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