| Deposit ID | 10078504 |
|---|---|
| MRDS ID | W026854 |
| Record type | Site |
| Current site name | San Isidro |
| Geographic coordinates: | -63.22635, 7.39314 (WGS84) |
|---|---|
| Elevation | 700 |
| Relative position | 140 KM SW OF PUERTO ORDAZ, 15 KM SE OF CERRO BOLIVAR. |
Political divisions (FIPS codes)
Bolivar(province)
Venezuela(country)
South America(continent)
Land(continent)
| Country | State |
|---|---|
| Venezuela | Bolivar |
| Commodity | Importance |
|---|---|
| Iron | Primary |
| Materials | Type of material |
|---|---|
| Goethite | Ore |
| Hematite | Ore |
| Limonite | Ore |
| Magnetite | Ore |
| Martite | Ore |
| Muscovite | Gangue |
| Quartz | Gangue |
| Sericite | Gangue |
| Result | CHEMISTRY OF RESERVES IN PERCENT: 62% FE. |
|---|
| Model code | 188 |
|---|---|
| USGS model code | 28b |
| Deposit model name | Algoma Fe |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite | ||||
| Rock unit name | Imataca Complex | ||||
| Rock description | Imataca Complex | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite |
| (1) | -63.22635, 7.39314 |
|---|
| Length | 11000M |
|---|---|
| Width | 5000M |
| Development status | Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Large |
| Significant | No |
| Discovery year | 1948 |
| Year of first production | 1985 |
| District name | San Isidro Iron Quadrilateral |
|---|
| Type | Operator |
|---|---|
| Owner | Ferrominero Orinoco (Subsidiary Of Cvg). |
| Type | Owner |
|---|---|
| Owner | The District Is A National Ore Reservation Under Administration Of The Ministry Of Energy And Mines. |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1970 | ||||||||||||||
| Measured | 300000000mt ore | ||||||||||||||
| |||||||||||||||
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1986 | ||||||||||||||
| Total resources | 394000000mt ore | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W026854 |
ALVARADO, BENJAMIN, 1970, IRON ORE DEPOSITS OF SOUTH AMERICA, IN SURVEY OF WORLD IRON ORE RESOURCES -- OCCURRENCE AND APPRAISAL: NEW YORK, UNITED NATIONS, P. 302-380.
FERENCIC, ANTE J., 1969, GEOLOGY OF THE SAN ISIDRO IRON ORE DEPOSIT, VENEZUELA: MINERALIUM DEPOSITA, V. 4, NO. 3, P. 283-297.
MINING MAGAZINE, JANUARY, 1987, P. 59.
RODRIGUEZ M., S.E., 1986, RECURSOS MINERALES DE VENEZUELA: BOLETIN DE GEOLOGIA, REPUBLICA DE VENEZUELA, MINISTERIO DE ENERGIA Y MINAS, DIRECCION GENERALSSECTORIAL DE MINAS Y GEOLOGIA, V. 15, NO. 27, 228 P.
COMMISSION FOR THE GEOLOGICAL MAP OF THE WORLD, 1983, METALLOGENIC MAP OF SOUTH AMERICA, 1:5,000,000, EXPLANATORY TEXT: CARACAS, 88 P.
ALVARADO, BENJAMIN, 1970.
| Subject category | Comment text |
|---|---|
| Deposit | IRON FORMATION HAS A VOLUME RATIO OF 6:4 QUARTZ TO IRON-MINERALS; BANDED WITH BANDS RANGING FROM 0.1 MM TO 20 MM BUT WITH LENSES OF PURE IRON ORE UP TO 3-4 M THICK; CONTAINS ACCESSORY AMOUNTS OF SERICITE AND MUSCOVITE; ORE BODIES REPRESENT ENRICHED PORTIONS CONSISTING OF SURFACE OF HARD CRUSTAL ORE (15-50 M) UNDERLAIN BY SOFT FRIABLE ORE WITH UP TO 6% SIO2. |
| Deposit | THE SAN ISIDRO IRON QUADRILATERAL CONSISTS OF MULTIPLE ORE BODIES INCLUDING SAN ISIDRO, LAS PAILAS, SAN JOAQUIN, LOS BARRANCOS I AND LOS BARRANCOS II. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1973 | Cooper, Margaret | U.S. Geological Survey | |
| Updater | 01-JUN-1977 | Shaffer, Glenn L. | U.S. Geological Survey | |
| Updater | 01-MAY-1991 | Bolm, Karen S. | U.S. Geological Survey | |
| Updater | 01-SEP-1991 | Page, Norman J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.