La Pedregosa Prospect

Occurrence in Guanacaste, Costa Rica with commodity Manganese
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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10007823
MRDS ID CS00043
Record type Site
Current site name La Pedregosa Prospect
Alternate or previous names Playa Pedregosa Prospect

Geographic coordinates

Geographic coordinates: -85.8458, 10.37051 (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 1.5 KM SW OF PLAYA REAL.

Commodities

Commodity Importance
Manganese Critical Primary

Comments on the commodity information

  • SOME ORE IS MEDIUM GRADE, BUT SILICEOUS.

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 Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) -85.8458, 10.37051

Economic information

Ore body information

  • Length 30M
    Width 1M

Comments on the geologic information

  • HEIN AND OTHERS (1983) DESCRIBE MASSIVE AND BEDDED, MULTICOLORED CHERTS RESTING ON AND INTERCALATED WITH BASALT. THEY STATE THAT THE AGES OF THE CHERT AND BASALT ARE UNKNOWN. 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

Ownership information

  • Type Owner
    Owner Guanacaste Manganese Co.

Comments on the workings information

  • SHALLOW CUTS IN JASPER ZONE.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ORE IN FRACTURES IN AND REPLACING JASPER. THE JASPER ZONE TRENDS N 50 E AND IS AT LEAST 30 M LONG AND 1 M WIDE.

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.