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Alto De La Mina

Prospect in Veraguas, Panama with commodities Gold, Silver, Zinc, 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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Ownership information
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10057400
MRDS ID TC01936
Record type Site
Current site name Alto De La Mina
Alternate or previous names In Santa Rosa Concession, Alta La Mina, Veraguas Concession

Geographic coordinates

Geographic coordinates: -81.12846, 8.29311 (WGS84)
Elevation 200
Relative position 36 KM NW OF SANTIAGO, 1 KM S OF VILLAGE OF CANAZAS, 100 M WEST OF PAVED ROAD BETWEEN CANAZAS AND THE INTERAMERICAN HIGHWAY.

Site location context

Political divisions (FIPS codes)

Veraguas(province)

Panama(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Panama Veraguas

Commodities

Commodity Importance
Gold Primary
Silver Primary
Zinc Critical Secondary
Lead Secondary

Materials information

Materials Type of material
Acanthite Ore
Electrum Ore
Pyrite Ore
Pyrrhotite Ore
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification, Carbonization, Argillization, Propyllitization, Supergene Clay And Oxidation

Analytical data

Result SAMPLE 6: 0.68 PPM AU, 26 PPM AG, 30 PPM CU, 15 PPM PB, 25 PPM ZN. SAMPLE 8: 55.0 PPM AU, 40 PPM AG, 820 PPM CU, 20500 PPM PB, 15000 PPM ZN.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Santa Rosa Tuff, Premineral Andesite
    Rock description Santa Rosa Tuff, Premineral Andesite

Nearby scientific data

(1) -81.12846, 8.29311
ListMap

Economic information

Ore body information

  • General form OVAL SHAPED MINEABLE AREA

Comments on the geologic information

  • SANTA ROSA TUFF IS AGGREGATE OF LOBES, LENSES, WEDGES OF VOLCANICLASTIC EJECTA MARGINAL TO A MAAR CRATER DOMINATED BY LAPILLI TUFF BUT WITH PUMICEOUS CLASTS UP TO BOULDER SIZE, FINER TUFFS SHOW GRADED BEDDING, CROSS-BEDDING, SOFT SEDIMENT. DEFORMATION, ANGULAR UNCONFORMITIES OR REPEATED ERUPTIONS AND EROSION. TUFF HAS HIGH POROSITY AND PERMEABILITY. TWO SETS OF FAULTS (1) PRE-MINERAL, NS EARLY REGIONAL FAULTS AND CALDERA RING FAULT SYSTEM; (2) POST-MINERAL PIE-WEDGE LIKE RADIAL FAULTS.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No
Discoverer Pre-Colombian

Ownership information

  • Type Owner-Operator
    Owner Freeport Exploration Co.
    First year 1985
    Last year 1990
  • Type Owner-Operator
    Owner Freeport De Panama
    First year 1985
    Last year 1990
  • Type Owner-Operator
    Owner Boliden International Mining And Greenstone Resources
  • Type Owner-Operator
    Owner Mina Santa Rosa, S. A.
    First year 1990

Comments on the reserve resource information

  • RESERVES CONTAIN 10% PYRITE, ELECTRUM MORE ENCAPSULATED IN PYRITE AND SILICA MAKING FOR LOW HEAP LEACH RECOVERIES. AG/AU RATIO 7. VEINLETS GOLD RICH BUT BULK MINEABLE GRADE IS ABOUT 2 G/T AU.

Workings at the site

  • Type of workings Surface/Underground
    Length 6M
    Overall depth 15M

Comments on development

  • PHOTO GEOLOGY, REGIONAL EXPLORATION, STREAM SEDIMENT GEOCHEMISTRY. DRILL HOLES 176 TO 58 M LONG. HOLE #3 9 M OF 36 PPM AU, BY DGM. DRILLED BY FREEPORT AND MSR.

Reference information

Bibliographic references

  • Deposit

    ANONYMOUS, 1991, REPUBLICA DE PANAMA MAPA GEOLOGICO: DGRM 1:500,000

  • Deposit

    BENEDETTI, J., AND LOPEZ, A., 1982, THE VERAGUAS GOLD CONCESSION REPUBLIC OF PANAMA, REPORT BY TRANSWORLD RESOURCES CORPORATION, DENVER, CO, P. 12 + 2 MAPS.

  • Deposit

    ANONYMOUS, 1988, PROYECTO INVENTARIO MINERO: DGRM-SGAB INFORME 88-7 MAPA METALOGENETICO

  • Deposit

    ANONYMOUS, 1969, RESULTS OF DETAILED INVESTIGATIONS IN THE AZUERO AREA, PANAMA: DGRM-ONU MAPA DE OCCURENCIAS MINERALES EN ESCALA 1:500,000.

  • Deposit

    WHITE, D.C., 1993, GEOLOGY AND MINERALIZATION OF THE SANTA ROSA GOLD DEPOSITS, PANAMA: SME PREPRINT 93-31 FOR SME ANNUAL MEETING, RENO, NV, FEBRUARY 15-18, 1993, 5 P.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit VEIN 40 M LONG, 25 M WIDE, 15 M DEEP, GRADES 8-10 G/TON AU (REF 2). OCCURS IN STOCKWORK VEIN SYSTEM IN PRE-MINERAL ANDESITE SANTA ROSA TUFF ON EASTERN PART OF RING FRACTURE SYSTEM SEPARATED BY GRABEN WITH POST- MINERAL MAFIC FLOWS FROM SANTA ROSA DEPOSIT - MAINLY.
Deposit SOIL AND ROCK GEOCHEMISTRY WORK DONE; PLANNED OPEN PIT ABOUT 200 X 240 M. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1991 Pierce, Herbert A. U.S. Geological Survey
Updater 01-JUL-1993 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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