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Bahia Brasilito Occurrence

Occurrence in Guanacaste, Costa Rica with commodities Manganese, Iron
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Mineral occurrence model information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10007810
MRDS ID CS00026
Record type Site
Current site name Bahia Brasilito Occurrence
Alternate or previous names Brasilito Occurrence, Brazilito Bay Occurrence

Geographic coordinates

Geographic coordinates: -85.79719, 10.408 (WGS84)

Site location context

Political divisions (FIPS codes)

Guanacaste(province)

Costa Rica(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Costa Rica Guanacaste

Comments on the location information

  • NEAR BAHIA BRASILITO.

Commodities

Commodity Importance
Manganese Critical Primary
Iron Primary

Mineral occurrence model information

Model code 97
USGS model code 24c
Deposit model name Volcanogenic Mn

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale

Nearby scientific data

(1) -85.79719, 10.408
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Economic information

Comments on the geologic information

  • HEIN AND OTHERS (1983) NOTE THAT BRASILITO IS THE TYPE LOCALITY FOR THE FORMATION CALLED THE PUNTA CONCHAL FM. BY GURSKY AND SCHMIDT-EFFING (1983) AND THE SARDINAL FM. BY DE BOER (1979). THE CHERT, WITH SHALE, MOSTLY OVERLIES THE BASALT, BUT IT ALSO CONTAINS SOME MN AND FE OXIDES AND BASALTIC DEBRIS MIXED IN. THE SEDIMENTARY ROCKS ARE TITHONIAN (LJUR) TO VALANGINIAN (ECRET) IN AGE. THE ROCKS HAVE BEEN METAMORPHOSED TO PREHNITE-PUMPELLYITE FACIES.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Santa Rosa District

Comments on the reserve resource information

  • GRADE TOO LOW FOR COMMERCIAL VALUE.

Reference information

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1986 Howe, Stephen S. U.S. Geological Survey PARSED HOST ROCK AND ASSOCIATED ROCK INFORMATION FROM OLD SINGLE VALUED FIELD TO NEW MULTIVALUED FIELD
Editor 27-APR-1995 Mosier, Dan U.S. Geological Survey

Beyond USGS

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

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