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

Geologic information

Identification information

Deposit ID 10007820
MRDS ID CS00038
Record type Site
Current site name Miramar Prospect

Geographic coordinates

Geographic coordinates: -85.84164, 10.37607 (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 0.4 KM SE OF LA ESPERANZA MINE (MRDS-REV REC. NO. 44, MRDS REC. NO. 37) AND ABOUT 0.7 KM ENE OF LA PEDREGOSA PROSPECT (MRDS-REV REC. NO. 46, MRDS REC. NO. 43).

Commodities

Commodity Importance
Manganese Critical Primary

Alteration

  • (Local) Silicification

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) -85.84164, 10.37607
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Low-Angle Fault Striking Nw And Dipping 35 Ne

Ore body information

  • Strike NW
    Dip 35 NE

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

  • ORE IN THE BOTTOM OF THE OLD WORKINGS IS VERY SILICEOUS AND IN SMALL QUANTITY.

Comments on the workings information

  • OLD WORKINGS

Reference information

Bibliographic references

  • Deposit

    WEBBER, B. N., 1942, MANGANESE DEPOSITS OF COSTA RICA, CENTRAL AMERICA: AM. INST MIN. METALL. PETROL. ENG. TECH. PUB. 1445, P. 5-6.

  • Deposit

    KUYPERS, E. P., AND DENYER CH., PERCY, 1979, LOS YACIMIENTOS MANGANESIFEROS DE LAS RADIOLARITAS DEL COMPLEJO OFIOLITICO DE NICOYA, COSTA RICA: CIENC. TEC., V. 3, NO. 1, P. 81-97.

  • 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 JASPEROIDAL SILICA AND MN (OXIDES?) CONCENTRATED IN A NARROW ZONE ALONG A LOW-ANGLE FAULT STRIKING NW AND DIPPING 35 NE THAT CUTS CHERTY SHALE AND CHERT THAT STRIKE NE AND DIP 47 NW. MOST OF THE ORE IS IN THE FOOTWALL.

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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