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  3. Mineral Resource Data System (MRDS)

Rio Gongora

Prospect in Guanacaste, Costa Rica with commodities Sulfur, Sulfur-Pyrite
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Ownership information
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10066231
MRDS ID TC42262
Record type Site
Current site name Rio Gongora
Alternate or previous names Volcan Cacao, Quebrada Grande

Geographic coordinates

Geographic coordinates: -85.47413, 10.84021 (WGS84)
Location accuracy 2000(meters)
Relative position 5 KM NNE OF QUEBRADA GRANDE, 6 KM SSW FROM SUMMIT OF VOLCAN CACAO ON RIO GONGORA. ON NATIONAL COORDINATES: 3755, 3183.

Site location context

Political divisions (FIPS codes)

Guanacaste(province)

Costa Rica(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Costa Rica Guanacaste

Commodities

Commodity Importance
Sulfur Primary
Sulfur-Pyrite Primary

Materials information

Materials Type of material
Pyrite Ore
Sulfur Ore
Marcasite Gangue

Alteration

  • (Local) Kaolinization, Silicification, Opaline Silica, Black Pyrite Chert.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Holocene
    Stratigraphic age (youngest) Holocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff

Nearby scientific data

(1) -85.47413, 10.84021
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Economic information

Ore body information

  • General form IRREGULAR
    Thickness 20M
    Length 500M
    Width 200M

Economic information about the deposit and operations

Development status Prospect
Commodity type Both
Deposit size Small
Significant No

Ownership information

  • Type Owner-Operator
    Owner Corporacion De Azufre De Costa Rica S. A. (Subsidary Of Rich Coast Sulfur).

Comments on the production information

  • PLANNED TO PRODUCE 127000 MT PER YEAR. ACTIVE PROSPECT.

Reserves and resources

  • Type In-situ
    Estimate year 1987
    Total resources 469000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Sulfur S 14.1 wt-pct Sulfur Major 1987
    Sulfur-Pyrite S_P 16.4 wt-pct Sulfur Major 1987

Comments on the reserve resource information

  • MEASURED AND PROVEN; COMBINED SULFUR PLUS PYRITE 22.9% S.

Comments on development

  • 1960S-1970S EXTENSIVELY DRILLED (3,465 M TOTAL) BY PASCAR OILS, LTD, HOME-STAKE PRODUCTION CO., BRAMEDA RESOURCES AND ENGINEERING SERVICES INTERNATIONAL LTD (ESI). 1986-1987, ESI DRILL 30 HOLES TOTALLING 2233 M. PLANNED AN OPEN PIT MINE.

Reference information

Bibliographic references

  • Deposit

    BERRANGE, J.P., MATHER, S.J., MORALES C., NURY, AND ALVARADO V., FERNANDO, 1990, THE NON-METALLIC INDUSTRIAL MINERALS AND ROCKS OF COSTA RICA: SAN JOSE, COSTA RICA, PROYECTO ANGLO-COSTARRICENSE DE MINERALES INDUSTRIALES (PACOMI), 181 P

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1994 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

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