Morro da Mina mine, Conselheiro Lafaiete, Minas Gerais, Brazil
|Latitude & Longitude (WGS84):||20° 36' 0'' South , 43° 46' 60'' West|
|Latitude & Longitude (decimal):||-20.60000,-43.78333|
|Köppen climate type:||Cwa : Monsoon-influenced humid subtropical climate|
|Name(s) in local language(s):||Morro da Mina|
|Other/historical region names associated with this locality:||Morro da Mina mine, Queluz de Minas|
Gondites and Queluzites, the metamorphosed manganese protores, are regularly distributed in the Greenstone Belt, occupying narrow and elongated zones in the metabasaltic and metaultrabasic parts. These protores were cut by granodioritic bodies, pegmatitic and aplitic veins and faults. (from Mineralienatlas)
A sedimentary assemblage originally belonging to a metamorphosed greenstone sequence. The depositional setting is interpreted as within a bowl of the ocean floor, and evolved from a divergent margin with volcanogenic contribution, and then later subject to sedimentary processes; mainly flows and chemical sedimentation turbidites.
Ores are rhodochrosite, and spessartine and rhodonite. Gangue minerals are quartz, huntite, annite, phlogopite, clinochlore and rutile (all unconfirmed).
Conselheiro Lafaiete was formely named Queluz de Minas.
30 valid minerals.
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.