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Atoroma Mine

Past Producer in La Paz, Bolivia with commodity Tin
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10006272
MRDS ID BL20252
Record type Site
Current site name Atoroma Mine

Geographic coordinates

Geographic coordinates: -67.08281, -17.08101 (WGS84)
Elevation 4850
Relative position 4 KM N15W OF REA REA

Site location context

Political divisions (FIPS codes)

La Paz(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia La Paz
Bolivia La Paz

Commodities

Commodity Importance
Tin Critical Primary

Materials information

Materials Type of material
Cassiterite Ore
Chlorite Gangue
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue

Alteration

  • (Local) Contact Metamorphism, Propylitization, Chloritization

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Tret Cruces Batholith
    Rock description Tret Cruces Batholith
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Silurian
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -67.08281, -17.08101
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description On The Sw Flank Of A N45w Asymmetric Antilcine

Ore body information

  • Strike N 20 E, N 55 E
    Dip 85 NW, 70-80 NW

Controls for ore emplacement

  • Fracture System Related To Granodiorite Intrusives

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1850

Ownership information

  • Type Owner-Operator
    Owner Trepp - Kieffer

Comments on the reserve resource information

  • (1) POSITIVE; (2) PROBABLE; (3) POSSIBLE

Workings at the site

  • Type of workings Underground
    Length 21500M
    Overall depth 141M

Comments on the workings information

  • 13,000 M OF TUNNELS, 3500 M OF CROSSCUTS, 5000 M OF RAISES, 141 M VERTICAL SHAFT, ON 11 LEVELS

Comments on development

  • ECON.COM: GRAVITY/FLOATATION MILL

Reference information

Bibliographic references

  • Deposit

    FONEM INTERNAL REPORT (1980)

  • Deposit

    GUSTAVSON ASSOC., 1992, COMPENDIUM OF THE ECONOMIC GEOLOGY OF BOLIVIA

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit TWO VEINS, ONE WITH CHLORITIC SELVAGE. OF 32 STRUCTURES IDENTIFIED, 6 ARE EXPLORED.
Deposit Discovery Year: 1800'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1991 Guerra, Edwin Servicio Geologic de Bolivia
Updater 01-SEP-1993 Long, Keith R. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site