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Marwani Iv

Past Producer in Bolivar, Venezuela 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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10060389
MRDS ID TC20024
Record type Site
Current site name Marwani Iv

Geographic coordinates

Geographic coordinates: -60.67713, 7.11288 (WGS84)

Site location context

Political divisions (FIPS codes)

Bolivar(province)

Venezuela(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Venezuela Bolivar

Comments on the location information

  • ZONE 4 OF THE MARWANI CONCESSION IS IN THE SOUTHWESTERN PART OF THE MARWANI CONCESSION.

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue
Tourmaline Gangue

Alteration

  • (Local) Silicification

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist

Nearby scientific data

(1) -60.67713, 7.11288
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Large Nw Trending Structural Zone

Ore body information

  • General form PODS, STRINGERS
    Length 2000M
    Width 10M

Economic information about the deposit and operations

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

Comments on the production information

  • EVIDENCE OF PAST PLACER ACTIVITY IN THE AREA, BUT PROBABLY ACTIVE BEFORE THE 1970'S.

Comments on the workings information

  • PITS

Comments on development

  • TECMIN IS EXPLORING

Reference information

Bibliographic references

  • Deposit

    MARSH, SHERMAN, PIERCE, H.A., SANCHEZ, HENRY, AND PAGE, N.J, (1992), THE GEOCHEMISTRY OF SIX GOLD-BEARING QUARTZ-CARBONATE TOURMALINE AREAS, ESTADO BOLIVAR, VENEZUELA: U.S. GEOLOGICAL SURVEY BULLETIN [IN PRESS].

  • Deposit

    SIDDER, G.B., 1990, MINERAL OCCURRENCES IN THE GUAYANA SHIELD, VENEZUELA: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 90-16, 39 P.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit VEINS DIP STEEPLY TO S; PLACER GOLD ALSO FOUND IN THE AREA. VEINS ARE RELATED TO NORTHEAST TRENDING DISLOCATIONS. IN PLACES, VEINS ARE ZONED OUTWARD AS MUCH AS 30 M.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1990 Bolm, Karen S. U.S. Geological Survey
Updater 01-FEB-1992 Orris, Greta 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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