| Deposit ID | 10085151 |
|---|---|
| MRDS ID | W700699 |
| Record type | Site |
| Current site name | Monterrosas Mine |
| Related records | 10303758 |
| Geographic coordinates: | -75.60137, -13.98696 (WGS84) |
|---|---|
| Elevation | 1100 |
| Location accuracy | 10000(meters) |
| Relative position | 300 KM S OF LIMA, EAST OF ICA |
Political divisions (FIPS codes)
Ica(province)
Peru(country)
South America(continent)
Land(continent)
| Country | State |
|---|---|
| Peru | Ica |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Gold | Primary |
| Molybdenum | Primary |
| Silver | Secondary |
| Cobalt Critical | Secondary |
| Materials | Type of material |
|---|---|
| Bornite | Ore |
| Chalcopyrite | Ore |
| Covellite | Ore |
| Cubanite | Ore |
| Magnetite | Ore |
| Marcasite | Ore |
| Martite | Ore |
| Molybdenite | Ore |
| Pyrite | Ore |
| Pyrrhotite | Ore |
| Actinolite | Gangue |
| Apatite | Gangue |
| Chlorite | Gangue |
| Epidote | Gangue |
| Quartz | Gangue |
| Sphene | Gangue |
| Tourmaline | Gangue |
| Hematite | Unknown |
| Result | ORE UP TO 5000 PPM CO, UP TO 800 PPM MO, UP TO 200 PPM NI, AND UP TO 200 PPM GA. FLUID INCLUSIONS GIVE TEMPERATURES 525 DEGREES C TO 350 DEGREES C |
|---|---|
| Result | PRESSURE OF 600 BARS AND 1.8 TO 6.0 KM DEPTH, SALINITES OF 43-56 WEIGHT PERCENT NACL |
| Result | SULFUR ISOTOPES 34S RANGE FROM 1.6 - 3.3 PER MIL. |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||
| Rock unit name | Early Gabbro, Patap Superunt | ||
| Rock description | Early Gabbro, Patap Superunt | ||
| |||
| (1) | -75.60137, -13.98696 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Monterrosas Fault And Coastal Batholith |
| General form | TABULAR |
|---|---|
| Thickness | 20M |
| Length | 430M |
| Width | 110M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Significant | No |
| Year of first production | 1982 |
| Type | Owner-Operator |
|---|---|
| Owner | Cerro De Pasco Corp , Centromin ) |
| First year | 1967 |
| Last year | 1974 |
| Year | 1982 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | PYRITE CONC | ||||||||||||||
| Accuracy | Estimate | ||||||||||||||
| Description | Ap_Grade: ^0.4% Co | ||||||||||||||
| |||||||||||||||
| Year | 1982 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | MO CONC | ||||||||||||||
| Accuracy | Estimate | ||||||||||||||
| Description | Ap_Grade: ^53 Weight % Mo | ||||||||||||||
| |||||||||||||||
| Year | 1982 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | CU CONC | |||||||||||||||||||||
| Accuracy | Estimate | |||||||||||||||||||||
| Description | Ap_Grade: ^30.5% Cu, 0.43 Oz/T Au | |||||||||||||||||||||
| ||||||||||||||||||||||
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1982 | ||||||||||||||
| |||||||||||||||
| Type | In-situ | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1984 | ||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W700699 |
MINING MAGAZINE, JANUARY 1989, P. 46.
SIDDER, G.B., 1984, ORE GENESIS AT THE MONTERROSAS DEPOSIT IN THE COASTAL BATHOLITH, ICA PERU: UNPUBLISHED PH.D. THESIS, OREGON STATE UNIVERSITY, 221 P.
SIDDER, G.B., UNPUBLISHED MANUSCRIPT.
PAGE, N.J, FIELD VISIT, 1983-1985.
NOBLE, D.C. AND VIDAL, C.E., 1994, GOLD IN PERU: SEG NEWSLETTER, APRIL 1994, NO. 17, P. 1, 6-13.
SIDDER, UNPUBLISHED MANUSCRIPT. NOBLE AND VIDAL (1994).
| Subject category | Comment text |
|---|---|
| Deposit | THICKNESS RANGES FROM 3-20 M. DIMENSIONS GIVEN OF MINEABLE ORE IN 1984. 0VER ORE ZONE GRADE OF CU VARIES 0.2 TO 15 WT PERCENT WITH GRADATION CONTACT WITH HOST ROCKS. SHAPE CRUDELY TABULAR BUT HAS PINCH AND SWELL FEATURES. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-SEP-89 | Beougher, Dee (Spanski, Gregory T.) | U.S. Geological Survey | |
| Updater | 01-AUG-93 | Page, Norman J. | U.S. Geological Survey | |
| Updater | 01-MAY-94 | Page, Norman J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.