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  3. Mineral Resource Data System (MRDS)

Upper Mahdia River

Past Producer in Guyana 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. Materials information
  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. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10061091
MRDS ID TC32228
Record type Site
Current site name Upper Mahdia River
Alternate or previous names Upper Mahdia Basin

Geographic coordinates

Geographic coordinates: -59.15043, 5.2877 (WGS84)

Site location context

Political divisions (FIPS codes)

Guyana(country)

South America(continent)

Land(continent)

Geographic areas

Country
Guyana

Comments on the location information

  • INCLUDES DISPUTE CREEK

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Sand and Gravel
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -59.15043, 5.2877
ListMap

Economic information

Ore body information

  • Thickness 4.27M
    Width 259.08M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1884

Mining district

District name Potaro Division

Ownership information

  • Type Operator
    Owner Minnehaha Development Co., Ltd , R. G. Humphrey 1936+)
    First year 1914
    Last year 1929

Production statistics

  • Year 1936
    Period 1914-1936
    Material AU
    Description Cp_Grade: ^0.00857-0.0137 Oz/Cy Au

Comments on the production information

  • ABOUT 1/3 OF THE DREDGED GROUND HAD BEEN WORKED BY HAND METHODS PREVIOUSLY.

Reference information

Bibliographic references

  • Deposit

    WILLIAMS, G.J., 1936, THE GEOLOGY AND GOLD DEPOSITS OF THE POTARO: GEOLOGICAL SURVEY OF GUIANA, BULLETIN NO. 3

  • Other Database

    CIMRI

  • Production

    WILLIAMS (1936)

General comments

Subject category Comment text
Deposit AREA OF 1070 ACRES. 900 ACRES DREDGED UP TO 1936, WERE A REMAINING 170 ACRES; RICHEST PART BETWEEN MILE IX 1/2 AND X, DREDGE FROM UPPER MAHDIA FALLS TO MILE XII 1/2 BY 1936.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-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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