Rio Tipuani Placers

Producer in La Paz, Bolivia with commodities Gold, Tin
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. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10068468
MRDS ID W001531
Record type Site
Current site name Rio Tipuani Placers
Alternate or previous names Roman Playa, Includes Drift Mines: Tujutahuira, Liratini, Unutuluni

Geographic coordinates

Geographic coordinates: -68.01618, -15.5144 (WGS84)
Elevation 555
Relative position 100 KMS NORTH OF LA PAZ, UPSTREAM ON TIPUANI RIVER FROM VILLIAGE OF SAME NAME.

Site location context

Political divisions (FIPS codes)

La Paz(province)

Bolivia(country)

South America(continent)

Land(continent)

Federal lands

Federal(land status)

Geographic areas

Country State
Bolivia La Paz

Commodities

Commodity Importance
Gold Primary
Tin Critical Primary

Comments on the commodity information

  • GOLD IS FLAT, COARSE RANGES FROM 916 TO 960 FINE, AVERAGES 920.

Materials information

Materials Type of material
Cassiterite Ore
Gold Ore
Apatite Gangue
Garnet Gangue
Hematite Gangue
Magnetite Gangue
Quartz Gangue

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 Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Rock unit name Cangalli Conglomerate
    Rock description Cangalli Conglomerate
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) -68.01618, -15.5144

Economic information

Ore body information

  • General form CHANNEL

Comments on the geologic information

  • MUCH MINING IS ACCOMPLISHED BY PITS AND ADITS TO PAYSTREAKS IN CANGALLI BASAL CONGLOMERATE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1562

Land status

Ownership category Federal

Ownership information

  • Type Owner
    Owner Compagnie Aramayo De Mines In Bolivie . Cooperatives Under Supervision Of Government
    First year 1935
    Last year 1952

Comments on the production information

  • AU (1) FROM DRIFT MINES BY COMPANY, AU (2) TAKEN BY MINERS.

Comments on the reserve resource information

  • RESERVES REPORTED BY EXTINCT ARAMAYA COMPANY THAT FORMALLY HELD CONCESSIONS ALONG TIPUANI AND ADJOINING RIVERS.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit UPPER TERTIARY FLUVIAL DEPOSITS(CANGALLI)REPRESENT 1ST CYCLE OF CONCENTRATION; UPLIFT AND EROSION RESULTED WITH 2ND CYCLE OF CONCENTRATION ALONG PRESENT STREAM COURSES. STOLL (1961) SHOWS GEOLOGIC MAP OF CHANNEL AND MAP OF TUJUJAHUIRA MINE. ; INFO.SRC : 1 PUB LIT
Deposit GOLD OCCURS IN A CEMENTED CONGLOMERATE 500-2500 M WIDE; PAY STREAKS CONTAINED ABOUT 20 G/CU M AU; DEPOSIT RESTS AND IS CUT INTO DEVONIAN SHALE.
Deposit Discovery Year: PRE-COLONIAL AND COLONIAL(FROM 1562).

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1973 Irving, Earl M. U.S. Geological Survey
Updater 01-JAN-1994 Page, Norman J. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.