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Berenguela

Prospect in Puno, Peru with commodities Copper, 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. Land status
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10157858
MRDS ID W001994
MAS/MILS ID 3330390015
Record type Site
Current site name Berenguela
Related records 10068752

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -70.58287, -15.66443 (WGS84)
Elevation 4200
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Puno(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Puno

Commodities

Commodity Importance
Copper Primary
Silver Primary

Materials information

Materials Type of material
Wad Unknown

Nearby scientific data

Ore Body (1) -70.58287, -15.66443
ListMap

Economic information

Ore body information

  • Strike E00W
    Dip 15N
    Thickness 8.4M
    Length 1600M
    Width 375M
    Depth to top 84M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 UNKNOWN
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin UNKNOWN
    Primary Ore Control LITHOLOGY
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip E00W:15N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 810219
  • Area 146HA
    Field Value
    Total Surface Area (HA) 146
    Date of Last Modification 910418

Comments on the geologic information

  • "WAD" IS AN AMORPHOUS MIX OF MANGANESE OXIDES. IN THE PARTICULAR CASE OF BERENGUELA, THE WAD CONTAINS COPPER AND SILVER VALUES. COPPER AND SILVER MINERALS HAVE NOT BEEN IDENTIFIED YET (GOLDE ASSOCIATES, RPT. 1980).

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant Yes
Discovery year 1903
Mining method Open Pit
Year of first production 1906
Milling method Flotation

Mining district

District name San Rafael Swell District

Mineral rights holdings

Type of mineral rights Other

Land status

Ownership category State

Ownership information

  • Type Owner
    Owner Kappes, Cassiday And Associates
    Interest 100
    Year 1994

Production statistics

  • Year 1957
    Period 1903-1957
    Description Copper Smelter Product : 9130 Tonnes, Silver Smelter Product : 452000 Kilograms
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 452mt

Comments on the production information

  • THE DEPOSIT WAS MINED BY UNDERGROUND METHODS FROM 1903 TO 1957. TOTAL PRODUCTION WAS AROUND ONE MILLION TONNES OF ORE YIELDING 9,100 TONNES COPPER AND 452,000 KILOGRAMS SILVER.

Reserves and resources

  • Type In-situ
    Estimate year 1988
    Measured 13800000mt ore
    Demonstrated 13800000mt ore
    Total resources 13800000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 127.8 g/mt Silver Major 1988
    Copper Cu 1.32 wt-pct Copper Major 1988
  • Type In-situ
    Estimate year 1988
    Indicated 2000000mt ore
    Demonstrated 2000000mt ore
    Total resources 2000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 158.9 g/mt Silver Major 1988
    Copper Cu 0.94 wt-pct Copper Major 1988
  • Type In-situ
    Estimate year 1984
    Measured 13700000mt ore
    Demonstrated 13700000mt ore
    Total resources 13700000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 127.8 g/mt Silver Major 1984
    Copper Cu 1.32 wt-pct Copper Major 1984
  • Type In-situ
    Estimate year 1994
    Indicated 15600000mt ore
    Demonstrated 15600000mt ore
    Total resources 15600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 140 g/mt Silver Major 1994
    Copper Cu 1.3 wt-pct Copper Major 1994
  • Type In-situ
    Estimate year 1995
    Demonstrated 14330000mt ore
    Total resources 14330000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 125 g/mt Silver Major 1995
    Copper Cu 1.32 wt-pct Copper Major 1995
  • Type In-situ
    Estimate year 1995
    Demonstrated 14330000mt ore
    Total resources 14330000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 125 g/mt Silver Major 1995
    Copper Cu 1.32 wt-pct Copper Major 1995

Comments on the reserve resource information

  • Q1 AND Q9 ARE BASED ON E&MJ, 11/84 ARTICLE REPORTING PROVEN RESERVES BY MINERO PERU, 1980, PAGE 4.
  • MINERAL FOR EXPORT, 9/89, P63. (12/31/88)

Workings at the site

  • Type of workings Surface
    Area 62HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .5
    Avg. Overburden Thickness 80
    Primary Material Cover SAND, SILT
    Secondary Material Cover M-HARD ROCKS
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 7.6
    Max. Pit Slope (degrees) 50
    Capacity 3000
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 8352
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 3
    Year of Information 1984

Comments on the workings information

  • DISTANCE TO ADEQUATE POWER SOURCE EQUAL TO 144 KM IS AN ASSUMPTION.

Comments on other economic factors

  • THE MILL CAPACITY IS PROPOSED AS 4000 TONNES PER DAY AT 310 DAYS PER YEAR (SIMILAR TO MINE CAPACITY). BENEFICIATION INCLUDES, CRUSHING, GRINDING,"SEGREGATION", REGRINDING AND FLOTATION. SEGREGATION (TREATMENT OF REFRACTORY COPPER) WOULD CONSIST OF HEATING 10-MESH ORE TOGETHER WITH SALT (NACL) AND COKE IN CALCINERS TO PARTIALLY FREE THE CU-AG CONTENTS FOR SUBSEQUENT CONVENTIONAL FLOTATION.
  • THE CHEMICAL COMPOUNDS OF COPPER AND SILVER IN THE ORE FEED ARE UNKNOWN. THE ORE IS A MIX OF MANGANIFEROUS OXIDES TERMED "WAD" IN MINERALOGY. GANGUE MATERIAL INCLUDES IRON AND MANGANESE OXIDES AND ALSO SOME ANHYDRITE.
  • COVER INCLUDES QUATERNARY SOIL, CONGLOMERATES AND POSSIBLY LIMESTONES.

Reference information

Bibliographic references

  • Reserve-Resource

    ENGINEERING AND MINING JOURNAL, 11/84.

  • Reserve-Resource

    LATIN AMERICAN MINING LETTER, 6/19/89, VOL 8, NO. 11, P.4.

  • Reserve-Resource

    MINERAL FOR EXPORT, 9/89, P 63.

  • Reserve-Resource

    MINING JOURNAL, 3/18/94, P.194.

  • Reserve-Resource

    MINING MAGAZINE, 10/74, P.277.

  • Reserve-Resource

    MCCREARY, ERNEST, REVOLUTION AND ELECTIONS RAPIDLY CHANGING

  • Reserve-Resource

    THE FACE OF SOUTH AMERICA'S COPPER MINING, ENGINEERING AND

  • Reserve-Resource

    MINING JOURNAL, 1/71, P.86-87.

  • Reserve-Resource

    U.S. DEPARTMENT OF THE INTERIOR, SIGNIFICANT NEW MINE DEVEL-

  • Reserve-Resource

    OPMENT PROJECTS IN PERU, MEMORANDUM, BUREAU OF MINES,

  • Reserve-Resource

    12/16/74.

  • Reserve-Resource

    WORLD MINING, 9/77, P.109-111.

  • Reserve-Resource

    LATIN AMERICAN MINING LETTER, 3/11/95, P.2.

  • Deposit

    PURSER, W., 1971, METAL-MINING IN PERU, PAST AND PRESENT: PR

  • Deposit

    PUB., NEW YORK, 339 PGS.

  • Deposit

    ANDEAN-PERUVIAN TIMES, 1974, DEVELOPMENT AND EXPANSION PROJE

  • Deposit

    LIMA, PERU, VOL. 34, NO. 1764, P. 60.

  • Deposit

    HALEY, D., 1974, PERU: A SPECIAL REPORT, IN MINING ENGINEERI

  • Deposit

    AIME, N. Y., JANUARY, 1974, P. 17.

  • Deposit

    ENGINEERING AND MINING JR., 1975, WORLD ROUNDUP: MCGRAW HILL

  • Deposit

    YORK, JANUARY, 1975, P. 78.

  • Deposit

    ENGINEERING & MINING JOURNAL, SOUTH AMERICAN AND CARIBBEAN,

  • Deposit

    JAN. 1975, P. 78.

  • Deposit

    MINING JOURNAL, PERUVIAN PRIORITIES, V. 291, NO. 7455,

  • Deposit

    7/7/78, PP. 1-2.

  • Deposit

    MINING JOURNAL, V. 172, NO. 1, 1971, P. 86-87.

  • Deposit

    RAND MCNALLY, PERU, THE INTERNATIONAL ATLAS, 1969, P.238.

  • Deposit

    ENGINEERING AND MINING JOURNAL, COPPER: SOUTH AMERICA AND

  • Deposit

    CARIBBEAN: V. 179, NO. 1, 1978, P. 70.

  • Deposit

    WORLD MINING CATALOG, SURVEY AND DIRECTORY NUMBER, PERU:

  • Deposit

    MAJOR PORPHYRY COPPER DEPOSITS BEING DEVELOPED FOR BIG

  • Deposit

    MINES, 1967, P. 63.

  • Deposit

    MINING MAGAZINE, SOUTH AMERICA: PERU: V. 121, NO. 3, 1969,

  • Deposit

    P. 257.

  • Deposit

    ENGINEERING AND MINING JOURNAL, SOUTH AMERICAN AND CARIB-

  • Deposit

    BEAN: V. 176, NO. 1, 1975, P. 78.

  • Deposit

    ENGINEERING & MINING JOURNAL, COPPER, JAN., 1978, P. 70.

  • Deposit

    D. C.: DECEMBER 16, 1974.

  • Deposit

    METALS SOURCEBOOK, SEPTEMBER 23, 1974.

  • Deposit

    GOLDER ASSOCIATES- CONSULTING GEOTECHNICAL ENGINEERS. REPORT

  • Deposit

    PREPARED FOR THE U.S. BUREAU OF MINES - MINERALS AVAIL-

  • Deposit

    ABILITY SYSTEM: BERENGUELA, PERU. RPT. 793-2011, MARCH

  • Deposit

    1980, 11PP.

  • Deposit

    WORLD MINING, 10/82, P.166.

  • Deposit

    MINING JOURNAL, 4/7/89, P.267.

  • Deposit

    MINERO PERU, INVESTMENT OPPORTUNITIES, MICHIQUILLAY/BEREN-

  • Deposit

    GUELA, 1991, P.24.

  • Deposit

    MINING JOURNAL, SUPPLEMENTAL, 1/22/93, P.6.

  • Deposit

    MINING JOURNAL, 9/9/94, P.181.

  • Deposit

    LATIN AMERICAN MINING LETTER, V 13/N 15, 9/30/94, P.4.

  • Deposit

    LATIN AMERICAN MINING LETTER, 2/8/95, P.8.

General comments

Subject category Comment text
Deposit ORIGIN OF THE DEPOSIT AND TYPE OF ORE BODY ARE UNKNOWN TO THE EVALUATOR. LENGTH OF ORE DEPOSIT WAS ESTIMATED AS 1600 METERS, WIDTH AS AN AVERAGE OF 375 METERS FROM MAP IN REPORT, FIG. 2 FOLLOWING PAGE 3.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-SEP-96 Porter, Kenneth E. 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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