| Deposit ID | 10068387 |
|---|---|
| MRDS ID | W001419 |
| Record type | Site |
| Current site name | Serra Sao Francisco Tungsten Deposit |
| Geographic coordinates: | -47.58233, -23.43075 (WGS84) |
|---|---|
| Relative position | 20 KILOMETERS SW OF CITY OF SOROCABA |
Political divisions (FIPS codes)
Sao Paulo(province)
Brazil(country)
South America(continent)
Land(continent)
| Country | State |
|---|---|
| Brazil | Sao Paulo |
| Commodity | Importance |
|---|---|
| Tungsten Critical | Primary |
| Tin Critical | Primary |
| Bismuth Critical | Tertiary |
| Fluorine-Fluorite Critical | Tertiary |
| Molybdenum | Tertiary |
| Copper | Tertiary |
| Lead | Tertiary |
| Materials | Type of material |
|---|---|
| Bismuth | Ore |
| Cassiterite | Ore |
| Fluorite | Ore |
| Molybdenite | Ore |
| Wolframite | Ore |
| Axinite | Gangue |
| Tourmaline | Gangue |
| Topaz | Unknown |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Greisen | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock |
| Rock unit name | Metasediments, Sao Roque Group (620-900 M.Y.) |
| Rock description | Metasediments, Sao Roque Group (620-900 M.Y.) |
| (1) | -47.58233, -23.43075 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Eliptical Shaped Granite Stock With N 60 E Trend The Same As Regional Strike Of Metasediments It Intrudes. |
| General form | ELIPTICAL SHAPE GRANITE STOCK |
|---|---|
| Length | 4000M |
| Width | 1000M |
| Development status | Past Producer |
|---|---|
| Commodity type | Both |
| Significant | No |
| Discovery year | 1936 |
| Discoverer | Theodoro Knecht Of Instituto Geografia E Geologia |
| Year of first production | 1945 |
| Type | Operator |
|---|---|
| Owner | Industrias Votorantim, S. A. |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W001419 |
SALDANHA, REYNALDO AND FRANCO, RUI R.(1946)NOTA PRELIMINAR SOBRE A OCORRENCIA DE VOLFRAMITA E CASSITERITA EM SOROCABA: MINERACAO E MET. NO.57,P.107-109.
KNECHT, THEODORO(1946)AS JAZIDAS DE WOLFRAMITA E CASSITERITA DA SERRA DE S. FRANCISCO, SAO PAULO: ANAIS DO SEGUNDO CONG.PANAMER. ENG. DE MINAS E GEOL. VOL.II, P. 113-139.
BARBOSA ALCEU F. AND MACIEL, PEDRO(1951)MINERALIZACAO DE ESTANHO E TUNGSTENIO NA SERRA DE S. FRANCISCO, SAO PAULO: MINER. E METAL. NO. 92 P. 145-150.
1943 RECON UNIV. OF SAO PAULO SEE REFERENCE F1
SEE GENERAL REFERENCES
1944 GEOLMAP INST. GEOL. E EOG. SEE REFERENCE F2
| Subject category | Comment text |
|---|---|
| Deposit | WOULD SEEM THAT THE SERRA DE SAO FRANCISCO DEPOSIT WARRANTS MORE DETAILED INVESTIGATION INCLUDING DRILLING, AS RESOURCE OF WOLFRAMITE AND CASSITERITE NOT ONLY FROM STANDPOINT OF QUARTZ VEINS BUT OF THE GREISENISED GRANITE MINERALIZED WITH DISSEMINATED SN AND SULPHIDES, OCCUPING AN AREA ON THE KNECHT(1946)MAP ONE KILOMETER BY 4 KILOMETERS. THIS APPEARS TO BE A TELESCOPED DEPOSIT. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-FEB-1973 | White, Max G. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.