São Bento mine, Santa Bárbara, Iron Quadrangle, Minas Gerais, Brazil
|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.
20 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
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
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. 
- 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