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São Bento mine, Santa Bárbara, Iron Quadrangle, Minas Gerais, Brazil

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Latitude & Longitude (WGS84): 19° 58' 10'' South , 43° 28' 45'' West
Latitude & Longitude (decimal): -19.9694444444, -43.4791666667


A gold mine started, owned by Eldorado Gold Corporation and since 2008 by AngloGold Ashanti. It was started in 1987 and produced about 36 tons of gold until 1999.
Production was ceased in 2007.
Located about 50 km east of Belo Horizonte.

The deposit is hosted in siderite-quartz-chlorite banded iron formation (BIF) which is overlain by a magnetite-rich BIF. Country rocks are low-grade metamorphosed black shales and tuffaceous rocks.

Mineral List


20 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Archean
2500 - 4000 Ma
Archean plutonic rocks

Age: Archean (2500 - 4000 Ma)

Comments: Deep-seated to high-level intrusions are included. Many charnockites, anorthosites, and large ophiolites, classified as plutons, are distinguished in the database using the SIGNIF item. Ophiolites were classified as plutons, even where remnants may be extrusive and/or sedimentary.

Lithology: Plutonic rocks

Reference: Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d. [18]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

- Mining Annual Review (1985): 416.
- Thorman, C.H., DeWitt, E., Maron, M.A.C., and Ladeira, E.A. (2001): Major Brazilian gold deposits - 1982 to 1999. Mineralium Deposita 36, 218-227. DOI 10.1007/s001260100170
- Lobato, L.M., Ribeiro-Rodrigues, L.C., and Reis Vieira, F.W. (2001): Brazil's premier gold province. Part II: Geology and genesis of gold deposits in the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrifero. Mineralium Deposita 36, 249-277. DOI 10.1007/s001260100180
- Márquez, M. et al. (2006): Process mineralogy of bacterial oxidized gold ore in São Bento Mine (Brasil). Hydrometallurgy 83, 114-123.
- Ore Geology Reviews 32 (2007) 571

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