Rio Vivi

Prospect in Puerto Rico, United States with commodities Copper, Gold, Silver
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Mineral rights holdings
  9. Ownership information
  10. Reserves and resources
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10133196
MAS/MILS ID 0729990001
Record type Site
Current site name Rio Vivi
Alternate or previous names Lares-Utuado-Adjuntas, Lare-Utuado-Adjuntas, Piedra Hueca, Cala Abajo, Tanama

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -66.73307, 18.21876 (WGS84)
Elevation 580

Site location context

Political divisions (FIPS codes)

Adjuntas 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 State
United States Puerto Rico

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Nearby scientific data

Ore Body (1) -66.73307, 18.21876

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant Yes
Mining method Open Pit
Milling method Flotation

Mineral rights holdings

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

Ownership information

  • Type Owner-Operator
    Owner Cobre Caribe, S. A.
    Interest 50
    Year 1977
  • Type Owner-Operator
    Owner Ponce Mining Co.
    Interest 50
    Year 1977

Reserves and resources

  • Type In-situ
    Estimate year 1978
    Indicated 220900000mt ore
    Demonstrated 220900000mt ore
    Total resources 220900000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.72 wt-pct Copper Major 1978
    Silver Ag 1.935 g/mt Silver Minor 1978
    Gold Au 0.316 g/mt Gold Minor 1978

Comments on the reserve resource information

  • MATRIX 1 CONSISTS OF THE 3 SEPARATE DEPOSITS: TANAMA (MAT 3), PIEDRA HUECA (MAT 4), AND CALA ABAJO (MAT 5). THIS MATRIX REPRESENTS THE TANAMA DEPOSIT THIS MATRIX REPRESENTS THE PIEDRA HUECA DEPOSIT THIS MATRIX REPRESENTS THE CALO ABAJO DEPOSIT MATRIX DERIVED BY MAFO

Workings at the site

  • Type of workings Surface
    Area 145HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method BENCH (BERM)
    Swell Factor .99
    Percent Waste Rock 56.3
    Avg. Overburden Thickness 2.5
    Primary Material Cover SAND, SILT
    Percentage 100
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 12
    Max. Pit Slope (degrees) 45
    Capacity 27200
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 3678
    Unit Production Cost 7.75
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 3
    Year of Information 1977

Reference information

Bibliographic references

  • Reserve-Resource

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

  • Reserve-Resource

    EMJ, 2/71, PP.74-84.

  • Deposit

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

  • Deposit

    PP.10-17.

  • Deposit

    BRIGGS,RP. MINERAL RESOURCES OF PUERTO RICO. REPRINTED FROM

  • Deposit

    THE REVISTA DEL COLEGIO DE INGENIEROS,ARQUITEOTOS,Y AGRIM-

  • Deposit

    ENSONES DE PUERTO RICO,V.19,NO.2,1967, 7 PP.

  • Deposit

    COX,DP, LARSON,RR,RB. TRIPP. HYDROTHERMAL ALTERATION IN

  • Deposit

    PUERTO RICAN PORPHYRY COPPER DEPOSITS. ECON. GEO.V 68, NO.

  • Deposit

    8, 1973, PP. 1329-1334.

  • Deposit

    ENGINEERING AND MINING JOURNAL. P.R. COPPER MINING CONT.

  • Deposit

    STILL RAGING, DOCTORS ENTER THE GAME. 1968, P. 144

  • Deposit

    EMJ. PUERTO RICO MAY SOON BECOME A MAJOR CU PRODUCER,9/68

  • Deposit

    P.R. PLAYS DOWN CU AND NI MINING, BUT TALKS CONT. WITH AMAX

  • Deposit

    AND KENNECOTT. 4/76 EMJ, P.31.

  • Deposit

    EMJ. P.R. REEXAMINES PROPOSED CU MINING. 10/68, P164.

  • Deposit

    MINING COMMISSION OF P.R. OFFICIAL POSITION OF THE MINING

  • Deposit

    COMM. WITH REL. TO THE PROPOSED CU MINING DEV.1969, 10PP.

  • Deposit

    M.C. OF P.R. SUMMARY OF CU MINING AND SMELTING IN P.R. 12/69

  • Deposit

    MINING ENGINEERING. PROTESTANTS PROTEST AMAX-KENNECOTT

  • Deposit

    VENTURE IN P.R. 3/71. P.24.

  • Deposit

    P.R. DEVEL. GROUP. RECOMMENDEDATIONS TO THE MINING COMM. ON

  • Deposit

    ECON. FACTORS INVOLVED IN THE NEGOTIATIONS OF CU MINING

  • Deposit

    LEASES. AUGUST 4, 1971.

  • Deposit

    TRAP,EH. CONDITIONS FOR MINING ARE READY. SAN JUAN STAR,V.9,

  • Deposit

    NO. 3012, PP.1,16.

  • Deposit

    MAS SEQS 99-030-0002(HO AND SO TAHAMA) & 99-030-0003(PIEDRA

  • Deposit

    99-030-0004(CALA ABAJO)

General comments

Subject category Comment text
Deposit THE ORE IN QUESTION IS PORPHYRY COPPER. ALL THE COSTS HAVE BEEN UPDATED FROM 1969 $ TO 1977 $ BY USING A A FACTOR OF 2.5. ONLY 1969 FEASIBILITY FIGURES ARE AVAILABLE FOR THIS PROPERTY WHICH PRECLUDE THE USE OF STANDARD INDICES EVEN IF COST WERE POSSIBLE TO UPDATE BY INDEX THE INFLATION RATE IN P.R. & LOWER LABOR RATE WOULD NOT JUSTIFY THE USE OF STRANDARD INDICES. A NEW FEASIBILITY STUDY WAS SCHEDULED FOR FEB 1977. HOWEVER, IT HAS NOT STARTED. INTERNAL GOVT. LEVEL POLITICS HAVE CAUSED AMAX AND KENNECOTT TO DROP THEIR INTEREST IN DEVELOPING THIS PROPERTY. LINES 019-020, I001-017, Y001-003 ADDED BY C.P. MISHRA AND R.L. DAVIDOFF 7/11/78 BASED ON REVISED FINANCIAL ANALYSIS. ENVIRONMENT EFFECTS CURRENTLY UNDER STUDY, EFFECT CONSIDERED SIGNIFICANT TO DATE.

Reporter information

Type Date Name Affiliation Comment
Reporter 26-FEB-1993 Mishra, C.P. U.S. Bureau of Mines

Beyond USGS

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