Monitoreo geoquimico

7/29/2019 Monitoreo geoquimico

1/25

October, 2008 089 - 4151026

Company: Minera Peru Cooper S.A.

Project: Toromocho

Sampling Code:

Type of Rock: Waste - Granodiorite-Biotite Potassic

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08

ID Drilling Hole: 31-46-6

Composite Sample Deep (m): 428.30 428.75 429 430.5 438.5 442.5 440 441.65 437.8

Sample Description: 4-mm fractures of pyrite bearing quartz filling the fracture with epidote in veinlets with cavities, pyrite disseminatedin 0.5%; biotites are being replaced by mineral. It shows a porphyry matrix with low quartz content.

Geochemical Monitoring Sheet

TOR08 - 001

Golder Associates


2/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Diorite-Argillic

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08

ID Drilling Hole: 21-41A-6

Composite Sample Deep (m): 12.5 12.85 13.00 13.5 13.7 14 14.4 15 15.3 15.9 16.2

Sample Description: Intensively fractured. Filled with quartz with cavities, brecciated matrix and 10% iron oxide, rock inargillization process.


TOR08 - 002

Golder Associates


3/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Ore - Granodiorite - Sericite

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08

ID Drilling Hole: 27-42-1-6

Composite Sample Deep (m): 74 75 75.8 77.25 78.4 79.5 84.81

Sample Description: Low fractured with 1-mm quartz veinlets. Containing disseminated pyrite in 0.5% with porphyry matrix

and high quartz content and low presence of magnesium oxide, crystallized quartz in veinlets.


TOR08 - 003

Golder Associates


4/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Calcareous Seds-Marble

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08


Composite Sample Deep (m): 122.5 124.3 126.5 127.5 129 131.5 133 135.15 136.7

Sample Description:


TOR08 - 004

Abundance of epidote and low fractured frequency

Golder Associates


5/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Diorite-Chlorite Propylite

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08


Composite Sample Deep (m): 127.5 129 130.5 132 133.5 134.4 136 137 138

Sample Description: Low fracture frequency with pyrite presence filling the fractures. Abundant plagioclase in 5% olive

green to dark green with manganese oxide veinlets in 0.3%


TOR08 -005

Golder Associates


6/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Granodiorite-Sericite

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08


Composite Sample Deep (m): 178.75 180.35 182 183 184.9

Sample Description: Quartz veinlets and presence of dykes with pyrite content in veinlets. Plagioclase is altered

passing to sericite alteration. Also, iron oxides can be noticed in veinlets cavities and high

fracture presence


TOR08 - 006

Golder Associates


7/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Skarn-Serpentine

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08


Composite Sample Deep (m): 74 74 74.65 82.5 83 85 91 94 96

Sample Description:


TOR08 - 007

Very poor presence of pyrite filling cavities. Matrix is massive, presence of epidote with banding and

argillic alteration.

Golder Associates


8/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Granodiorite-Biotite Potassic

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08


Composite Sample Deep (m): 36 37.5 39 40.5 41.5 42 43.5 44.7

Sample Description: Brecciated rock with presence of disseminated pyrite in 0.5%. Primary characteristics of rock are being

highly altered. Presence of chlorite.


TOR08 - 008

Golder Associates


9/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Diorite-Biotite Potassic

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08

ID Drilling Hole: 25-44N-6

Composite Sample Deep (m): 99 100.5 102 103.5 105 106 108 108.9

Sampling D Sample Description:


TOR08 - 009

Linear fractures and high pyrite content. Presence of manganese oxide, incipient degree of alteration,

low quartz content 1%, halos of alteration around veinlets, porous argillic matrix.

Golder Associates


10/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Diorite-Sericite

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08


Composite Sample Deep (m): 30 31 34.5 43.5 45.5 40.1 51 52.3

Sample Description:


TOR08 - 010

High fractured degree with abundant presence of iron oxide. Primary rock is medium altered, showing

cavities in porphyry matrix veinlets with pyrite in oxidation condition in veinlets, and poor presence of

quartz.

Golder Associates


11/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Hornfels

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08


Composite Sample Deep (m): 122.5 125 127.5 130.7 132 135

Sample Description:


TOR08 - 011

Rock completely altered Hornfels, high fracture degree, abundant content of manganese oxide in veinlets,

massive beige-colored matrix, high quartz content. The sample is fractured.

Golder Associates


12/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Quartz Porphyry-Sericite

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08


Composite Sample Deep (m): 6.1 8 9.5 11 14 14.75

Sampling D Sample Description:


TOR08 - 012

Poorly altered rock, presence of disseminated pyrite with 5% quartz, with porphyry matrix, crystallized

pyrite is filling the quartz veinlets which are in the process of sericitization; calcic plagioclase has been

altered to alunite and pyrite in 0.5%.

Golder Associates


13/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Diorite-Argillic

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08


Composite Sample Deep (m): 90 91.5 92.5 100.6 101.3 102.5 102.5 100.75 obseut

Sample Description: Sample completely crushed; therefore, it is not possible a recognition of the characteristics.

Note: Presence of pyrite in veinlets also disseminated.


TOR08 - 013

Golder Associates


14/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Feldspar Porphyry-Biotite Potassic

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08

ID Drilling Hole: 30-48S-6

Composite Sample Deep (m): 238 239.6 240.5 241.2 242 243 244.3 245

Sample Description: Presence of pyrite in veinlets also disseminated. Iron oxide disseminated 1% of Biotite in presence of

alteration and cavities. High quartz content 30%, poor presence of fractures.


TOR08 - 014

Golder Associates


15/25

October, 2008 089 - 4151026


Project: Toromocho

Sampling Code:

Type of Rock: Waste - Feldspar Porphyry-Sericite

Location

Department: Junin

Province: Yauli

District: Morococha

Date: May-08


Composite Sample Deep (m): 275.1 270.7 278 279 280 281 282 283 284

Sample Description: Disseminated pyrite with high quartz content, silicificated rock. Rock has a porphyry matrix with iron

oxide in veinlets. Poor presence of fractures, whitish grey color.


TOR08 - 015

Golder Associates


16/25

October, 2008 089 - 4151026


Proyect: Toromocho.

Sampling Code: TOR08 - 016

Type of Rock:

Location

Department: Junin

Province: Yauli

Location Morococha

Date: May-08


Composite Sample Deep (m): 204 205 207 208 210 276 278 279

Sample Description: Banded rock, silicificated with epidote in 10%; poor presence of pyrite 0.5%, found as infill, poor

presence of fractures.


Waste - Skarn-Tremolite

Golder Associates


17/25

October, 2008 089 - 4151026


Proyect: Toromocho.


Type of Rock: Waste - Felspar Porphyry

Location

Department: Junin

Province: Yauli

District: Morococha

Date:


Composite Sample Deep (m):

Sample Description: Silicificated sample, abundant content of calcic plagioclase, presence of pyrite in veinlets, 3% Biotite,

presence of chlorite and pyrite in veinlets 0.5%


May-08

Golder Associates


18/25

October, 2008 089 - 4151026


Proyect: Toromocho.


Type of Rock: Ore - Granodiorite

Location

Department: Junin

Province: Yauli

District: Morococha

Date:



Sample Description: Disseminated pyrite, rock shows low frequency of fractures; quartz and pyrite are found as infill. 5%

quartz in rock


May-08

Golder Associates


19/25

October, 2008 089 - 4151026


Proyect: Toromocho.


Type of Rock: Ore - Hornfels

Location

Department: Junin

Province: Yauli

District: Morococha

Date:



Sample Description: High degree of fracture; 3-4-mm veinlets. Iron oxide is found as fracture infill and rock pyrite is

silicificated.


May-08

Golder Associates


20/25

October, 2008 089 - 4151026


Proyect: Toromocho.


Type of Rock: Ore - Diorite

Location

Department: Junin

Province: Yauli

District: Morococha

Date:



Sample Description: The rock shows pyrite as fracture infill; medium presence of fracturing; pyrite is crystallized, quartz fill

in veinlet and plagioclase is in the process of alteration.


May-08

Golder Associates


21/25

October, 2008 089 - 4151026


Proyect: Toromocho.


Type of Rock: Ore - Skarn

Location

Department: Junin

Province: Yauli

District: Morococha

Date:



Sample Description: The sample is altered; lithological characteristics cannot be noticed.

Presence of pyrite in fractures, epidote and quartz of infill in fractures; 4-mm fractures.


May-08

Golder Associates


22/25

October, 2008 089 - 4151026


Proyect: Toromocho.


Type of Rock: Ore - High As granodiorite/skarn

Location

Department: Junin

Province: Yauli

District: Morococha

Date:



Sample Description: Similar to sample MC 0021. Sample is altered; lithological characteristics cannot be noticed.

Presence of pyrite in fractures, epidote and quartz of infill in fractures.


May-08

Golder Associates


23/25

October, 2008 089 - 4151026


Proyect: Toromocho.


Type of Rock: Waste - High As granodiorite

Location

Department: Junin

Province: Yauli

District: Morococha

Date:



Sample Description: Completely altered limestone; presence of pyrite in 5-mm fractures. Abundant clay.


May-08

Golder Associates


24/25

October, 2008 089 - 4151026


Proyect: Toromocho.


Type of Rock: Waste - Granodiorite-Sericite

Location

Department: Junin

Province: Yauli

District: Morococha

Date:


Composite Sample Deep (m 216.7 216.8 218.1 219 220.4 223 224 225.8

Sample Description: Presence of pyrite in veinlets, rock is completely silicificated, presence of manganese oxide

and iron oxide 1% and quartz in 5%.


May-08

Golder Associates


25/25

October, 2008 089 - 4151026


Proyect: Toromocho.


Type of Rock: Waste - Granodiorite-Argillic

Location

Department: TOR08-020

Province: Yauli

District: Morococha

Date:


Composite Sample Deep (m): 33 36.05 36.5 38.8 39.5 40.8 41.6 42.15 43.05 43.5

47

Sample Description: High degree of fracture, white with presence of iron oxide in fractures.


May-08

Golder Associates

Monitoreo geoquimico

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