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  3. Mineral Resource Data System (MRDS)

Cala Abajo

Prospect in United States with commodities Copper, Gold, Silver
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Ownership information
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10133669
MAS/MILS ID 0729990004
Record type Site
Current site name Cala Abajo
Alternate or previous names Rio Vivi

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -66.68007, 18.18846 (WGS84)
Elevation 655

Site location context

Political divisions (FIPS codes)

Utuado Municipio(county)

Puerto Rico(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Adjuntas(quadrangle 1:24,000 scale)

Puerto Rico C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Puerto Rico(hydrologic accounting unit)

Puerto Rico(hydrologic subregion)

Caribbean(hydrologic region)

Geographic areas

Country
United States

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Alabandite Unknown
Calcite Unknown
Chalcopyrite Unknown
Chlorite Unknown
Covellite Unknown
Epidote Unknown
Magnetite Unknown
Oligoclase Unknown
Pyrite Unknown
Rutile Unknown

Nearby scientific data

Ore Body (1) -66.68007, 18.18846
ListMap

Economic information

Ore body information

  • Thickness 300M
    Length 1200M
    Width 200M
    Area 790HA
    Field Value
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 DISSEMINATED
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control IGNEOUS
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 PROPYLITIC
    Type of Wallrock Alter. #2 SERICITIC
    Type of Wallrock Alter. #3 INTERM ARGILLIC
    Minimum Depth to Top 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 790
    Date of Last Modification 781218

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant No
Mining method Open Pit
Milling method Flotation

Mining district

District name Rio Vivi

Mineral rights holdings

Type of mineral rights Fee Ownership
Type of mineral rights Federal Lease

Ownership information

  • Type Owner
    Owner Southern Gold Resources (USA) Inc.
    Interest 35
    Year 1995
  • Type Owner-Operator
    Owner USMX, Inc.
    Interest 65
    Home office Colorado
    Year 1995

Comments on the ownership information

  • SOUTHERN GOLD RESOURCES (USA) INC. ACQUIRED EXCLUSIVE EXPLORATION PERMIT COVERING THE CALA ABAJO PORPHYRY COPPER DEPOSIT.

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Indicated 64000000mt ore
    Demonstrated 64000000mt ore
    Total resources 64000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.83 wt-pct Copper Major 1993
    Gold Au 0.34 g/mt Gold Minor 1993
  • Type In-situ
    Estimate year 1995
    Indicated 52649000mt ore
    Demonstrated 52649000mt ore
    Total resources 52649000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.799 wt-pct Copper Major 1995
    Gold Au 0.4 g/mt Gold Minor 1995

Comments on the reserve resource information

  • MEDIUM SIZE (50,000.TO 1,000,000MT) PORPHYRY COPPER DEPOSIT. COMPLETE DESCRIPTION OF MINING AND BENEFICIATION OF THIS DEPOSIT, 72-999-0003 AND 72-999-0002 INCLUDED IN C DEPOSIT 72-999-0001. PROPERTIES WILL BE MINED CONCURRENTLY, AND HAVE ONE CONCENTRATOR AND ONE SMELTER. THE RESERVES RELATED TO THIS DEPOSIT HAVE BEEN COMBINED INTO RIO VIVI DEPOSIT FILE, SEQ NO 0729990001, AND IS FOUND AS QUANT-GRADE MATRIX 5.

Reference information

Bibliographic references

  • Reserve-Resource

    ENGINEERING AND MINING JOURNAL, 2/71, PP.77-84.

  • Reserve-Resource

    ACKERMAN, DH. INDUSTRIAL PUERTO RICO. MINING, V.7,NO.1, 1970

  • Reserve-Resource

    PP10-17,64-66.

  • Reserve-Resource

    LUTJEN,GP. THE CURIOUS CASE OF PUERTO RICAN CU MINES.

  • Reserve-Resource

    SKILLINGS' MINING REVIEW, P. 9 (JULY 17, 1993).

  • Reserve-Resource

    MINING RECORD, 6/16/93, P.

  • Reserve-Resource

    NORTHERN MINER, 6/21/93, P.10.

  • Reserve-Resource

    LATIN AMERICAN MINING LETTER, V 14/N 8, 5/19/95, P.5.

  • Reserve-Resource

    MINING WEEKLY, (JUNE 25, 1993).

  • Deposit

    USGS MISC.GEOL.INVESTIGATION MAP I-519, 1968, ADJUNTASQUAD.

  • Deposit

    THIS MONTH IN MINING, ENGINEERING AND MINING JOURNAL, SEPT

  • Deposit

    1968, PP. 171-72.

  • Deposit

    COX, D.P. AND R.P.BRIGGS, METALLOGENIC MAP OF PUERTO RICO,

  • Deposit

    I-721, USGS, 1973.

  • Deposit

    HYDROTHERMAL ALTERATION IN PUERTO RICAN PORPHERY COPPER

  • Deposit

    DEPOSITS, ECONOMIC GEOLOGY,VOL. 68, NO.8,DEC.,1973,PP1329-34

  • Deposit

    GEOLOGY OF THE RIO VIVI PORPHYRY COPPER DEPOSITS, PUERTO

  • Deposit

    RICO, ECONOMIC GEOLOGY, V.66, NO.6,SEPT.1971, P977.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1995 Schmidt U.S. Bureau of Mines

Beyond USGS

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

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