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El Sesteo Mine

Past Producer 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. 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 10007818
MRDS ID CS00036
Record type Site
Current site name El Sesteo Mine

Geographic coordinates

Geographic coordinates: -85.80691, 10.37746 (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

  • BETWEEN PLAYA REAL AND MATAPALO, ABOUT 1.5 KM NW OF MATAPALO. APPARENTLY THE UNNAMED DEPOSIT IN THE VICINITY OF SISTEO (SIC) IN SEARS (1919).

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) -85.80691, 10.37746
ListMap

Economic information

Comments on the geologic information

  • CHERT, SHALE, AND JASPER CROP OUT E AND W OF WORKINGS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1918

Mining district

District name Santa Rosa District

Ownership information

  • Type Operator
    Owner Manganese Mining And Manufacturing Co. As This Was Co. That Shipped Ore In 1918. ?
  • Type Owner
    Owner Manganese Mining And Manufacturing Co

Comments on the production information

  • ABOUT 1000 METRIC TONNES ORE SHIPPED IN 1918 BY MANGANESE MINING AND MANUFACTURING CO.

Comments on the reserve resource information

  • "IT IS ESTIMATED THAT THE SOIL IN THIS AREA CONTAINS 5 TO 10 PERCENT BY WEIGHT OF MANGANESE-OXIDE NODULES. POSSIBLY 500 METRIC TONNES OF GOOD ORE COULD BE OBTAINED HERE BY WASHING AND SORTING ...."

Comments on the workings information

  • SHALLOW TRENCHES; PITS TO 2 M DEEP.

Reference information

Bibliographic references

  • Deposit

    SEARS, J. D., 1919, DEPOSITS OF MANGANESE ORE IN COSTA RICA: U.S. GEOL. SURV. BULL. 710-C, P. 72-73.

  • Deposit

    ROBERTS, R. J., 1944, MANGANESE DEPOSITS IN COSTA RICA: U.S. GEOL. SURV. BULL. 935-H, P. 395.

  • 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

    ROBERTS (1944)

General comments

Subject category Comment text
Deposit BOULDERS AND RESIDUAL DEPOSIT, THE LATTER OVER AN AREA OF 60 BY 30 M, TO A DEPTH OF 60 CM TO 1.2 METERS. OUTCROPS OF CHERT, SHALE, AND JASPER E AND W OF WORKINGS HAVE SMALL VEINLETS OF MN OXIDES, BUT NO OREBODIES.

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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