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Alto De La Blenda

Producer in Catamarca, Argentina with commodities Gold, Silver, Manganese, Lead
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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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10084791
MRDS ID W700000
Record type Site
Current site name Alto De La Blenda

Geographic coordinates

Geographic coordinates: -66.68276, -27.31413 (WGS84)
Relative position 25 KM BY DIRT ROAD FROM HIGHWAY TO BELEM (100 KM)

Site location context

Political divisions (FIPS codes)

Catamarca(province)

Argentina(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Argentina Catamarca

Commodities

Commodity Importance
Gold Primary
Silver Primary
Manganese Critical Primary
Lead Tertiary

Materials information

Materials Type of material
Argentite Ore
Galena Ore
Gold Ore
Manganite Ore
Polybasite Ore
Pyrolusite Ore
Rhodonite Ore
Tennantite Ore
Tetrahedrite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt

Nearby scientific data

(1) -66.68276, -27.31413
ListMap

Economic information

Ore body information

  • Strike N50-70W
    Dip NE
    Length 1200M
    Width 6M

Comments on the geologic information

  • BASEMENT ROCKS INCLUDE MICA SCHIST, QUARTZITE, GRANITE, MONZONITE, AND AN EOCENE SANDSTONE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Ownership information

  • Type Owner-Operator
    Owner Yacimientos Mineros De Aguas De Dionisio (YMAD)
    Home office Av. Cordoba 2080, Buenos Aires. Tel. 48-6894

Comments on the production information

  • ANNUALLY PRODUCES 490 KG AU AND 4,100 KG AG FROM ABOUT 24,000 METRIC TONS OF ORE.

Reserves and resources

  • Type In-situ
    Estimate year 1965
    Total resources 1300000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 7.4 g/mt Gold Major 1965
    Silver Ag 139 g/mt Silver Major 1965
    Manganese Mn 14.5 wt-pct Manganese Major 1965
  • Type In-situ
    Estimate year 1993
    Total resources 15000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 6.53 g/mt Gold Major 1993
    Silver Ag 127.09 g/mt Silver Major 1993
  • Type In-situ
    Estimate year 1993
    Total resources 11000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 6 g/mt Gold Major 1993
    Silver Ag 117 g/mt Silver Major 1993
  • Type In-situ
    Estimate year 1991
    Commodity Subtype Grade units Group Importance Year
    Gold Au 5.28 g/mt Gold Major 1991

Comments on the reserve resource information

  • ORE (2) BLOCKED OUT BY YMAD AND JICA; ORE (3) 218,000 T POS AT 5.15 G/T AU; 50,725 T PROB. AT5.9 G/T; 495 T POSIB AT 4.8 G/T

Comments on development

  • EXPLORATION AT PRESENT. AGREEMENT BETWEEN JAPAN INTERNATIONAL COOPERATION AGENCY AND YMAD BEGAN IN 1986.

Reference information

Bibliographic references

  • Deposit

    MOSIER AND OTHERS, 1986: U.S. GEOLOGICAL SURVEY BULLETIN 1666, P. 16-17.

  • Deposit

    MINING MAGAZINE, JANUARY, 1987, P. 58.

  • Deposit

    WORLD BANK (1993) UNPUBLISHED DOCUMENT

  • Deposit

    ANON., 1993, HIGH HOPES IN ARGENTINA: MINING JOURNAL, LONDON, NOV. 5, 1993, V. 321, P. 318.

  • Deposit

    DIRECCION NACIONAL DE MINERIA Y GEOLOGIA, 1991, REPORT ON THE ARGENTINE MINING SECTOR, ARGENTINE SELECTED MINING PROJECT: BUENOS AIRES.

  • Deposit

    ANGELELLI, VICTORIO, 1984, YACIMIENTOS METALIFEROUS DE LA REPUBLICA DE ARGENTINA, VOL. II: COMISION DE INVESTIGACIONES CIENTIFICAS, P. 393-704.

  • Production

    WORLD BANK (1993)

  • Reserve-Resource

    MOSIER AND OTHERS, 1986

General comments

Subject category Comment text
Deposit LENGTH OF VEINS RANGES FROM 0.55 TO 1.2 KM, WIDTH FROM 0.5 TO 6.0 M. THERE ARE 4 MAIN MINERALIZED STRUCTURES.
Deposit RECORD TC00531 BY KAREN S. BOLM HAS BEEN INCORPORATED INTO THIS RECORD. ; INFO.SRC : 1 PUB LIT
Deposit FARALLON NEGRO OCCURS IN LITERATURE ATTACHED TO ALTO DE LA BLENDA BUT IS A DIFFERENT MINE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1987 Orris, Greta J. U.S. Geological Survey
Updater 01-SEP-1991 Bolm, Karen S. U.S. Geological Survey
Updater 01-DEC-1987 Page, Norman J. U.S. Geological Survey
Updater 26-JAN-1995 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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