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  3. Mineral Resource Data System (MRDS)

Playa Blanca Prospect

Occurrence in Guanacaste, Costa Rica with commodity Manganese
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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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10007809
MRDS ID CS00024
Record type Site
Current site name Playa Blanca Prospect

Geographic coordinates

Geographic coordinates: -85.79164, 10.43439 (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

  • 5 KM NE OF PUERTO VIEJO, ON THE PACIFIC OCEAN COAST.

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Psilomelane Ore
Pyrolusite Ore

Alteration

  • (Local) Silicification

Analytical data

Result SAMPLE FROM SORTED ORE: 32.91 % MN
Result 4.43 % FE
Result 30.33 % INSOLUBLE MATERIAL

Mineral occurrence model information

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

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale

Nearby scientific data

(1) -85.79164, 10.43439
ListMap

Economic information

Ore body information

  • General form TABULAR
    Thickness 0.08M
    Length 25M

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

Ownership information

  • Type Operator
    Owner E. W. Creevy

Comments on the reserve resource information

  • SORTED ORE ON DUMPS. GRADE FROM ONE SAMPLE.
  • THIS IS SILICEOUS ORE THAT MAY BE AVAILABLE IN THE WORKINGS.

Comments on the workings information

  • SEVERAL PITS UP TO 4 M DEEP; ADIT.

Comments on development

  • ORE MINED IN THE COURSE OF EXPLORATION BY E. W. CREEVY. LAST EXPLORATORY WORK DONE IN 1939.

Reference information

Bibliographic references

  • Deposit

    ROBERTS, R. J., 1944, MANGANESE DEPOSITS IN COSTA RICA: U.S. GEOL. SURV. BULL. 935-H, P. 395.

  • Deposit

    U.S. GEOLOGICAL SURVEY, DIRECCION GENERAL DE GEOLOGIA, MINAS E HIDROCARBUROS, UNIVERSIDAD DE COSTA RICA, 1987, MINERAL RESOURCE ASSESSMENT OF THE REPUBLIC OF COSTA RICA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATION SERIES MAP I-1865, 75 P.

General comments

Subject category Comment text
Deposit DEPOSIT PARALLEL TO BEDDING OF THE HOST ROCKS.

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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