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  3. Mineral Resource Data System (MRDS)

El Porvenir Mine

Occurrence in Alajuela, Costa Rica with commodity Gold
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10007928
MRDS ID CS00166
Record type Site
Current site name El Porvenir Mine

Geographic coordinates

Geographic coordinates: -84.48882, 9.98165 (WGS84)

Site location context

Political divisions (FIPS codes)

Alajuela(province)

Costa Rica(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Costa Rica Alajuela

Comments on the location information

  • JUST N OF SAN MATEO, ON THE RIO MACHUCA. INCLUDES A BONANZA IN THE GUATUSO WORKING.

Commodities

Commodity Importance
Gold Primary

Analytical data

Result ASSAYS: $10-$2000/TON AU (IN 1902?)

Mineral occurrence model information

Model code 151
USGS model code 25d
Deposit model name Epithermal vein, Sado
Mark3 model number 28

Nearby scientific data

(1) -84.48882, 9.98165
ListMap

Economic information

Ore body information

  • General form VEIN

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Aguacate District

Ownership information

  • Type Owner
    Owner Rio Grande Gold Mining Co.

Comments on the production information

  • THE BONANZA IN THE GUATUSO WORKING YIELDED $60,000.

Comments on the reserve resource information

  • "CONSIDERABLE RICH ORE REMAINS" (IN THE OLD WORKINGS). WOULD HAVE "ABUNDANT SUPPLY OF ORE" AT $15-$25/TON.

Comments on the workings information

  • TUNNEL AT THE SOUTH END OF THE CLAIM ON THE MAIN VEIN.

Reference information

Bibliographic references

  • Deposit

    REITZ, M. F., 1902, THE GOLD MINES OF COSTA RICA: ENG. MIN. J., V. 74, NO. 7, P. 212.

  • Deposit

    CHAVES, R., 1974, THE AGUACATE MINES OF COSTA RICA; GEOLOGY AND APPRAISAL: COSTA RICA, DIR. GEOL. MINAS PETROL., INF. TEC. NOTAS GEOL., ANO 12, NO. 57, P. 7.

  • 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.

  • Production

    REITZ (1902)

General comments

Subject category Comment text
Deposit CONSISTS OF A MAIN VEIN TRENDING N 30 E THAT CUTS ACROSS THE CENTER OF THE PROPERTY AND SEVERAL SMALLER VEINS THAT CONNECT WITH IT. THE MAIN VEIN CAN BE TRACED ON THE SURFACE FOR ABOUT 800 M.

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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