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Las Pilas Occurrence

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. Mineral occurrence model information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10007805
MRDS ID CS00018
Record type Site
Current site name Las Pilas Occurrence

Geographic coordinates

Geographic coordinates: -85.69302, 10.50245 (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

  • ABOUT 5.5 KM W OF SARDINAL, S OF THE ROAD TO POTRERO.

Commodities

Commodity Importance
Manganese Critical Tertiary

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) -85.69302, 10.50245
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Economic information

Ore body information

  • General form VEINS

Comments on the geologic information

  • THE "PORPHYRY" IS A WEATHERED IGNEOUS ROCK THAT IS NEAR THE SHALE HOST.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Sardinal District

Ownership information

  • Type Owner
    Owner L. Rodriguez

Comments on the reserve resource information

  • STRINGERS CARRY A VERY SMALL AMOUNT OF HIGH GRADE ORE; FLOAT HAS A SMALL AMOUNT OF LOW GRADE ORE.

Reference information

Bibliographic references

  • Deposit

    SEARS, J. D., 1919, DEPOSITS OF MANGANESE ORE IN COSTA RICA: U.S. GEOL. SURV. BULL. 710-C, P. 78.

  • 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 STRINGERS A FEW CENTIMETERS THICK IN SHALE IN A NE-TRENDING ZONE APPARENTLY ABOUT 150 M LONG. ALSO FLOAT UPSLOPE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1986 Howe, Stephen S. U.S. Geological Survey

Beyond USGS

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

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