| Deposit ID | 10073099 |
|---|---|
| MRDS ID | W018917 |
| Record type | Site |
| Current site name | Fresnillo Mine |
| Geographic coordinates: | -102.85042, 23.15046 (WGS84) |
|---|---|
| Elevation | 2200 |
| Relative position | LOCATED AROUND CERRO DE PROANO WHICH IS JUST SOUTH OF CITY OF FRESNILLO |
Political divisions (FIPS codes)
Pima(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
| Country | State |
|---|---|
| Mexico | Zacatecas |
| Commodity | Importance |
|---|---|
| Silver | Primary |
| Lead | Primary |
| Zinc Critical | Primary |
| Copper | Secondary |
| Gold | Secondary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Galena | Ore |
| Pyrargyrite | Ore |
| Sphalerite | Ore |
| Calcite | Gangue |
| Pyrite | Gangue |
| Pyrrhotite | Gangue |
| Quartz | Gangue |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Siltstone | ||
| |||
| (1) | -102.85042, 23.15046 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Small Quartz Porphyry Stock, A Few Dikes |
| General form | VEINS AND A FEW MANTOS AND CHIMNEYS (DISSEMINATED) |
|---|---|
| Strike | NW |
| Dip | NE OR SW |
| Length | 2500M |
| Width | 1500M |
| Depth to bottom | 965M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1554 |
| Year of first production | 1554 |
| District name | Fresnillo District |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Cia Fresnillo |
| Year | 1968 | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | ORE | ||||||||||||||||||||||||||||||||||||||||||
| Accuracy | Accurate | ||||||||||||||||||||||||||||||||||||||||||
| Description | Ap_Grade: ^2.95 % Zn, 1.91 % Pb, .11 % Cu, .35 G/Mt Au, 161 G/Mt Ag | ||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||
| Type of workings | Underground |
|---|---|
| Length | 2500M |
| Overall depth | 965M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W018917 |
STONE, J. B., 1956, NOTES ON THE FRESNILLO MINING DISTRICT OF ZACATECAS; INTL. GEOL. CONG., 20TH, GUIDEBOOK A-2 (ENG TRANS) P. 111-113
VILLASENOR, LUIS, 1968, APPLICATION OF GEOLOGY IN DEVELOPMENT AND EXPLOITATION OF THE NAICA AND FRESNILLO MINES, MEXICO; ECON. GEOL. V. 63 P 701
KOCH, G. S. JR., LINK, R. F., 1967, GEOMETRY OF METAL DISTRIBUTION IN 5 VEINS OF THE FRESNILLO MINE, ZACATECAS, MEXICO; U.S. BU MINES REP. INV. 6919, 64 P.
RAUSCH, D. O., MARIACHER, B. C., 1970, AIME SYMP. PB-ZN V.I P. 924. STONE, J.B., 1956, FRESNILLO, INTL. GEOL. CONG. 20TH, GUIDEBOOK A-2 (ENG. TRANS.) P 111.
| Subject category | Comment text |
|---|---|
| Deposit | ORE OCCURS IN NARROW, PERSISTENT VEINS AVERAGING 1.4 M WIDE. 6 MAJOR VEINS; OVER 50 MINOR ONES. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-AUG-1976 | Schruben, Paul G. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.