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De Santos Workings

Past Producer in Guyana with commodities Diamond, 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. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10061148
MRDS ID TC32315
Record type Site
Current site name De Santos Workings

Geographic coordinates

Geographic coordinates: -61.04936, 6.7179 (WGS84)

Site location context

Political divisions (FIPS codes)

Guyana(country)

South America(continent)

Land(continent)

Geographic areas

Country
Guyana

Comments on the location information

  • NEAR INTERSECTION OF CUYUNI RIVER AND OHNOPI RIVER ON SOUTH BANK OF CUYUNI, E. BANK OF OHNOPI; LATITUDE-LONGITUDE VALUES FROM NIMA'S GEONAMES DATABASE ARE FOR OHNOPI (STREAM)

Commodities

Commodity Importance
Diamond Primary
Gold Tertiary

Comments on the commodity information

  • DIAMONDS AVERAGE 1/16 TO 1/8 OF A CARAT; ARE IRREGULAR OR OCTAHEDRAL IN FORM.

Materials information

Materials Type of material
Gold Ore
Tourmaline Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel

Nearby scientific data

(1) -61.04936, 6.7179
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Economic information

Ore body information

  • Width 402.33M

Comments on the geologic information

  • TERRACES ARE ABOUT 15 FT ABOVE RIVER LEVEL: SECTION (TOP TO BOTTOM) 18 IN. YELLOW CLAY, NO DIAMONDS; 18 IN COARSE GRAVEL, WORN TOURMALINE, FEW FINE DIAMONDS; 18 IN GRAY, SANDY, HARD CLAY WITH QUARTZ PEBBLES, TRACE GOLD, TOURMALINE (50% OF THE PAN), NUMEROUS FINE DIAMONDS; 4 IN HARD GRAY SANDY CLAY WITH BLACK SANDS, A FEW FINE DIAMONDS; HARD CONSOLIDATED RED CLAY.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Upper Cuyuni Division

Reference information

Bibliographic references

  • Deposit

    POLLARD, E.R., 1952, APPENDIX 1, REPORT ON THE WENAMU-OHNOPI REGION OF THE UPPER CUYUNI RIVER, IN REPORT ON THE GEOLOGICAL SURVEY OF BRITISH GUIANA, PP. 15-27

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1992 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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