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Carvalho

Past Producer in Minas Gerais, Brazil with commodity Mica
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10066279
MRDS ID TC42412
Record type Site
Current site name Carvalho
Alternate or previous names Mascarenhas

Geographic coordinates

Geographic coordinates: -41.93947, -20.70607 (WGS84)
Location accuracy 1000(meters)
Relative position ON RIDGE BETWEEN BARRO BRANCO AND SAN ROQUE STREAMS.

Site location context

Political divisions (FIPS codes)

Minas Gerais(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Minas Gerais

Commodities

Commodity Importance
Mica Primary

Materials information

Materials Type of material
Muscovite Ore
Kaolin Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Schist
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -41.93947, -20.70607
ListMap

Economic information

Ore body information

  • Strike N}
    Dip 50E}
    Thickness 1M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No

Comments on the production information

  • LESS THAN 200 KG PER YEAR (1944); ABOUT 10 KG PER DAY OF TRIMMED MICA. INACTIVE DEVELOPED PRODUCER.

Comments on the workings information

  • 10 TUNNELS 40-80 M LONG.

Reference information

Bibliographic references

  • Deposit

    PECORA, W.T., KLEPPER, M.R., LARRABEE, D.M., BARBOSA, A.L.M., AND FRAYHA, RESK, 1950, MICA DEPOSITS IN MINA GERAIS, BRAZIL: U.S. GEOLOGICAL SURVEY BULLETIN 964-C, P. 205-305

  • Deposit

    PARSONS, E.W., 1944, UNPUBLISHED U.S. GEOLOGICAL SURVEY REPORT.

  • Other Database

    CIMRI

  • Production

    PARSONS (1944).

General comments

Subject category Comment text
Deposit MICA FOLLOWS BAND IN HANGING WALL.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1994 Page, Norman J. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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