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Los Avestruces - Las Asperezas

Producer in San Luis, Argentina with commodities Tungsten, Bismuth
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10021633
MRDS ID DE00315
Record type Site
Current site name Los Avestruces - Las Asperezas

Geographic coordinates

Geographic coordinates: -66.11606, -32.59744 (WGS84)

Site location context

Political divisions (FIPS codes)

San Luis(province)

Argentina(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Argentina San Luis

Comments on the location information

  • 1:250000 MAP SHEET NO. K 55-03

Commodities

Commodity Importance
Tungsten Critical Primary
Bismuth Critical Primary

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -66.11606, -32.59744
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Economic information

Geologic structures

Type of structure Regional
Structure description Quartz Veins In Schist Near Precambrian-Paleozoic Granit Contact.

Comments on the geologic information

  • PRINCIPAL MINERAL ASSEMBLAGES: QRTZ + FLRT + WLFM + MLBD; MINOR BSMN + PYRT + CLCP + PYTT + CSTR + TRACE HMTT. FOLEY ZONE LIES PREDOMINANTLY WITHIN THE FOOTWALL CRESCENT SPUR SANDSTONE BUT PARTIALLY EXTENDS INTO THE SULPHIDE RICH BEDS CONTAINING THE CASSITERITE ORE OF THE CLEVELAND DEPOSITS AND PARTIALLY INTO THE LOW-GRADE COPPER OREBODIES.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Year of first production 1922

Ownership information

  • Type Owner-Operator
    Owner Empresa Minera Cerrito Blanco

Reserves and resources

  • Type In-situ
    Estimate year 1985
    Total resources 5000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.5 wt-pct Tungsten Major 1985

Comments on development

  • ZONE DISCOVERED IN 1970'S. OVERLYING CLEVELAND TIN DEPOSIT IN 1898. NATURE OF DISCOVERY: ZONE: DRILLING. OVERLYING TIN DEPOSIT: PROSPECTING. PRODUCTION: TIN AND COPPER. ACTIVE DEVELOPMENT IN MINE: NO. ACTIVE EXPLORATION IN DISTRICT: NO. ASSESSMENT: UNLIKELY THE COMPANY WILL BEGIN MINING TUNGSTEN FROM THE FOLEY ZONE WITHIN NEXT 10 YEARS AT CURRENT PRICE OF TUNGSTEN AND CURRENT ESTABLISHED CAPACITY OF TUNGSTEN PRODUCTION.

Reference information

Bibliographic references

  • Deposit

    WILLIG, C.D., AND DELGADO, J., 1985, SOUTH AMERICA AS A SOURCE OF TUNGSTEN, PAPER PRESENTED AT THE THIRD INTERNATIONAL TUNGSTEN SYMPOSIUM, MADRID, SPAIN, 36 P.

  • Deposit

    WRIGHT, C.W., 1940, MINERAL RESOURCES, PRODUCTION AND TRADE OF ARGENTINA; U.S. BUREAU OF MINES, FOREIGN MINERALS CIRCULAR, VOL. 3, NO. 3, JULY 1940, P. 28.

  • Deposit

    STAFF, ARGENTINA, INTERNATIONAL MINING, VOL. 3, NO. 8, AUGUST 1986, P. 136.

  • Deposit

    WILLIG, C.D., AND DELGADO, J., SOUTH AMERICA AS A SOURCE OF TUNGSTEN, IN MPR PUBLISHING SERVICES LTD. (ED.), PROCEEDINGS OF THE THIRD INTERNATIONAL TUNGSTEN SYMPOSIUM, MADRID, MAY, 1985, P. 83.

  • Deposit

    BEDER, R., 1922, EL YACIMIENTO DE MINERAL DE TUNGSTENO "LOS AVESTRUCES", DEPARTAMENTO SAN MARTIN - PROVINCIA DE SAN LUIS; ARGENTINA, MINISTERIO DE AGRICULTURA DE LA NACION, DIRECCION GENERAL DE MINAS, GEOLOGIA E HIDROLOGIA, BOLETIN NO. 5, SERIE F, P. 33-37.

  • Deposit

    ANGELELLI, V., FERNANDEZ LIMA, J.C., HERRERA, A., AND ARISTARAIN, L., 1970, DESCRIPCION DEL MAPA METALOGENETICO DE LA REPUBLICA ARGENTINA: MINERALES METALIFEROS; ARGENTINA, MINISTERIO DE MINERIA, DIRECCION NACIONAL DE GEOLOGIA Y MINERIA, ANALES XV, P. 161.

  • Production

    ANNUAL: WILLIG AND DELGADO, 1985, P. 83. CUM: ANGELELLI ET AL, 1970.

General comments

Subject category Comment text
Deposit MINING METHOD: FOR TIN DEPOSIT, UNDERGROUND. RESOURCES LARGE BUT CONFIDENTIAL.
Deposit Discovery Year: 1970/1989

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1985 Pasitschniak, Anna Geological Survey of Canada

Beyond USGS

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

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