Unnamed 43-4

Occurrence in Puerto Rico, United States with commodities Gold, Silver
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Links to other databases
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10085528
MRDS ID W701134
Record type Site
Current site name Unnamed 43-4

Geographic coordinates

Geographic coordinates: -67.09115, 18.00511 (WGS84)

Site location context

Political divisions (FIPS codes)

Lajas Municipio(county)

Puerto Rico(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San German(quadrangle 1:24,000 scale)

Puerto Rico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Southern(hydrologic unit)

Puerto Rico(hydrologic accounting unit)

Puerto Rico(hydrologic subregion)

Caribbean(hydrologic region)

Geographic areas

Country State
United States Puerto Rico

Commodities

Commodity Importance
Gold Primary
Silver Primary

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Early Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) -67.09115, 18.00511

Economic information

Comments on the geologic information

  • CLINOPYROXENES OF A MICROGABBRO WITHIN THE BERMEJA COMPLEX HAVE BEEN AGE DATED AT 112PLUS OR MINUS 15 MA; AND THE MARQUITA CHERT HAS BEEN DATED AT 80 MA.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Comments on development

  • MINERAL OCCURRENCE

Reference information

Bibliographic references

  • Deposit

    COX, DENNIS P., AND BRIGGS, REGINALD P., 1973, METALLOGENIC MAP OF PUERTO RICO: U.S. GEOLOGICAL SURVEY, MISCELLANEOUS GEOLOGIC INVESTIGATIONS MAP I-721, ACCOMPANIED BY EXPLANATORY PAMPHLET, 6 P.

  • Deposit

    SCHELLEKENS, J.H., ET.AL, 1989, PETROLOGY AND PALEONTOLOGY OF THE BEMERJA COMPLEX, PUERTO RICO: QUESTIONS ABOUT THE ORIGIN OF THE BASAL TERRANES OF THE NORTHERN CARRIBEAN, GSA ABSTRACTS,1989

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1990 Paidakovich, Matthew E. U.S. Geological Survey
Updater 01-AUG-1990 Bawiec, Walter J. U.S. Geological Survey

Beyond USGS

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