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Bonanza

Past Producer in Nicaragua with commodities Gold, Silver, Lead, Zinc
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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. Mining district
  12. Production statistics
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10086125
MRDS ID W702050
Record type Site
Current site name Bonanza
Alternate or previous names Vein In Neptune Group

Geographic coordinates

Geographic coordinates: -84.62994, 13.98089 (WGS84)
Relative position 75 MILES W OF PUERTO CABEZAS., Unk

Site location context

Political divisions (FIPS codes)

Nicaragua(country)

North America(continent)

Land(continent)

Geographic areas

Country
Nicaragua

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Primary
Zinc Critical Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Hematite Ore
Pyrite Ore
Sphalerite Ore
Chlorite Gangue
Epidote Gangue
Quartz Gangue
Rhodonite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -84.62994, 13.98089
ListMap

Economic information

Ore body information

  • General form VEINS, SHEAR ZONES
    Thickness 15M
    Length 4000M
    Width 500M

Comments on the geologic information

  • HOST ROCK AGE UNKNOWN, THOUGH KESLER ET AL (1990) SPECULATE AN AGE OF LATE CENOZOIC, AND OTHER CURRENT SPECULATION IS TERTIARY OR POST-LARAMIDE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No

Mining district

District name Pis Pis District

Production statistics

  • Year 1976
    Period 1901-1976
    Material ORE
    Description Cp_Grade: ^0.3 Oz/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 8g/mt
  • Year 1976
    Period 1901-1976
    Material ORE
    Description Cp_Grade: ^1.8% Pb, 10% Zn, 0.5% Cu, 0.6 Oz/T Ag, 0.09 Oz/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Zinc Zinc 10wt-pct
    Ore Lead Lead 2wt-pct
    Ore Copper Copper 17g/mt
    Major Ore Gold Gold 3g/mt
  • Year 1991
    Material ORE
    Description Ap_Grade: ^3.5 G/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 4g/mt

Comments on the production information

  • SEE RECORD #TC01710 ON PIS PIS DISTRICT FOR MORE INFORMATION.

Reserves and resources

  • Type In-situ
    Estimate year 1991
    Total resources 1000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.5 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1992
    Total resources 1100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 6.2 g/mt Gold Major 1992

Comments on the reserve resource information

  • IN 1992, SOME 3,000,000 MT AT 5.1G/TON THOUGHT TO BE MINEABLE BY OPEN PIT.

Comments on development

  • ECON.YEAR: 1948 ; MILL.CAP : 750 TONS/DAY (1948).

Reference information

Bibliographic references

  • Deposit

    INSTITUTO CENTROAMERICANO DE INVESTIGACION Y TECNOLOGIA INDUSTRIAL (ICAITI), 1970, MAPA METRALOGENETIO DE AMERICA CENTRAL; 1:2000000 & ESTUDIOS METALOGENETICOS DE AMERICA CENTRAL: PUBLICIONES GEOLOGICAS DEL ICAITI NUMERO III, 76 P.

  • Deposit

    MINING JOURNAL, LONDON, AUGUST 23, 1991, V. 317, NO. 8136, P. 135.

  • Deposit

    ROBERTS, R.J., AND IRVING, E.M., 1957, MINERAL DEPOSITS OF CENTRAL AMERICA: U.S. GEOLOGICAL SURVEY BULLETIN 1034, P. 187-188.

  • Deposit

    KESLER, S.E., LEVEY, ENRIQUE, MARTIN F., CECILIA, 1990, METALLOGENIC EVOLUTION OF THE CARIBBEAN REGION, CHAPTER 18 IN THE CARIBBEAN REGION, GEOLOGY OF NORTH AMERICA, EDS. GABRIEL DENGO AND, J.E. CASE: GEOLOGICAL SOCIETY OF AMERICA V. H, P. 459-482.

  • Deposit

    ABCULD, PEL, AND BURN, R.G., 1969, THE PIS-PIS GOLD MINING DISTRICT OF NE NICARAGUA: MINING MAGAZINE, LONDON, 120, P. 169-175

  • Deposit

    MINING JOURNAL, LONDON, SEPT. 11, 1992, V. 319, NO. 8190, P. 175.

  • Deposit

    US EMBASSY MANAGUA, 1993, A LOOK AT NICARAGUA'S MINING SECTOR: DEPARTMENT OF STATE CABLE, 8/93.

  • Production

    MINING JOURNAL, LONDON, AUGUST 23, 1991, P. 135. KESLER AND OTHERS, 1990, P. 470; MINING JOURNAL, 1992.; U.S. EMBASSY MANAGUA (1993).

  • Reserve-Resource

    MINING JOURNAL, LONDON, AUGUST 23, 1991, P. 135; MINING JOURNAL, 1992.

General comments

Subject category Comment text
Deposit AREA IS 20 X 3 KM. WIDTH= DEPTH OF MINING, FLUID INCLUSION TEMPERATURES ARE 250 TO 350 C.
Deposit UNKNOWN SIZE CRITERIA AS REPORTED BY ICAITI. THIS SITE IS INCLUDED IN THE PIS PIS DISTRICT REPORT. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-90 Bliss, James D. U.S. Geological Survey
Updater 01-OCT-91 Pierce, Herbert A. U.S. Geological Survey
Updater 01-FEB-92 Page, Norman J. U.S. Geological Survey
Updater 01-JUL-92 Venable, Margaret U.S. Geological Survey
Updater 01-DEC-93 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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