| Deposit ID | 10068846 |
|---|---|
| MRDS ID | W002104 |
| Record type | Site |
| Current site name | Portovelo Gold Mines |
| Alternate or previous names | Cima |
| Geographic coordinates: | -79.58925, -3.63962 (WGS84) |
|---|---|
| Elevation | 600 |
| Relative position | 2 KM SOUTH OF ZARUMA WHICH IS 150 KM S OF GUAYAQUIL AND 50 KM INLAND FROM PACIFIC COAST |
Political divisions (FIPS codes)
El Oro(province)
Ecuador(country)
South America(continent)
Land(continent)
| Country | State |
|---|---|
| Ecuador | El Oro |
| Commodity | Importance |
|---|---|
| Lead | Primary |
| Zinc Critical | Primary |
| Gold | Primary |
| Copper | Secondary |
| Silver | Secondary |
| Cadmium | Tertiary |
| Materials | Type of material |
|---|---|
| Argentite | Ore |
| Bornite | Ore |
| Chalcocite | Ore |
| Chalcopyrite | Ore |
| Galena | Ore |
| Pyrite | Ore |
| Pyrrhotite | Ore |
| Sphalerite | Ore |
| Calcite | Gangue |
| Gypsum | Gangue |
| Quartz | Gangue |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) | ||
| Rock unit name | Celica Formation;; | ||
| Rock description | Celica Formation;; | ||
| |||
| (1) | -79.58925, -3.63962 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Portovelo-Pinas Nw-Se Fault |
| General form | NARROW, PARALLEL |
|---|---|
| Strike | N-S |
| Dip | 25-80 DEG. E |
| Thickness | 2M |
| Length | 15000M |
| Width | 3M |
| Depth to top | 0M |
| Depth to bottom | 660M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Large |
| Significant | No |
| Discovery year | 1549 |
| Discoverer | Captain Mercadillo |
| Year of first production | 1549 |
| Production years | 1878-1971 |
| District name | Portovelo-Zaruma |
|---|
| Type | Operator |
|---|---|
| Owner | Campania Industrial Minera Asociada, S. A. |
| Type of workings | Underground |
|---|---|
| Length | 2000M |
| Overall depth | 660M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W002104 |
UNDP, 1969, GOLD AND BASE METAL SULPHIDES-PORTOVELO, REPORT NO. 2
BILLINGSLEY, P. 19-26, ZARUMA GOLD DISTRICT, AIMME, VOL. 74, P. 255-275
PALADINES, P.A., SAN MARTIN, D.H., AND SUAREZ, L.H., 1980, MAPA METALOGENICO DE LA REPUBLICA DEL ECUADOR: MINISTERIO DE RECURSOS NATURALES Y ENERGETICOS, SCALE 1:1,000,000.
MINISTERIO DE RECURSOS NATURALES Y ENERGETICOS, 1982, MAPA GEOLOGICO NACIONAL DE LA REPUBLICA DEL ECUADOR, SCALE 1:1,000,000.
GOOSSENS, P.J., FOZZARD, P.M., AND MOSQUERA, C.C., 1969, MINERAL INDEX MAP REPUBLIC OF ECUADOR: NACIONAL DE GEOLOGIA Y MINERA, MINISTERIO DE INDUSTRIAS Y COMERCIO, QUITO, ECUADOR, SCALE 1:1,000,000.
INEMIN INSTITUTO ECUATORIANO MINERALIA, 1987, MAPA CATASTRAL MINERO ECUATORIANO.
GEMUTS, I., LOPEZ, G., AND JIMENEZ, F., 1992, GOLD DEPOSITS OF SOUTHERN ECUADOR, SOCIETY OF ECONOMIC GEOLOGISTS NEWSLETTER, NO. 11, OCT. 92, PP. 14-16.
STOLL, W.C., 1962, NOTES ON THE MINERAL RESOURCES OF ECUADOR, ECON. GEOL., 57(5), P. 799-808.
PUIG, C.A., 1984, ECUADOR LOOKING TO MINING INCOME TO SUPPLEMENT OIL REVENUES, ENGINEERING AND MINING JOURNAL, 185, P. 85,89,92.
THOURNOUT, VAN AND MERLYN, M., 1990, NUEVO MODELO METALOGENICO EN PORTOVELO, MINERIA ECUATORIANA, NO. 2, P. 17-19.
GUSIAMANO, A.J., 1982, ESTUDIO MINERALOGICO DE PORTOVELO, FLYSCH, NO. 3, P. 95-128.
1964 UNDP
MANY AT MINE. UNDP REPORTS AT UN, NY OF LIMITED DISTRIBUTION
1968 UNDP, REPORT ON NEGATIVE RESULTS
UNDP, ECUADOR, REPORT NO 2, 1969
UNDP, ECUADOR, REPORT NO. 2, 1969
| Subject category | Comment text |
|---|---|
| Deposit | First Production Year: 1549 SPORADICALLY, FROM 1878 FORMALLY |
| Deposit | 20 BRANCHING VEINS UP TO 1000 M LONG AND 600 M DEEP. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-1974 | Irving, Earl M. | U.S. Geological Survey | |
| Updater | 01-MAY-1993 | Lopez, Tony | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.