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Deposit No. 2

Occurrence in Puerto Rico, United States with commodity Iron
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10085523
MRDS ID W701126
Record type Site
Current site name Deposit No. 2

Geographic coordinates

Geographic coordinates: -65.84778, 18.19983 (WGS84)
Relative position ABOUT 3 3/4 MILES SOUTHEAST OF DEPOSIT NO. 1 (WHICH ITSELF LIES 1 1/2 MILES EAST OF JUNCOS), ON THE SOUTH SIDE OF A RIDGE ABOUT 160 FT. BELOW ITS CREST AND 365 FT. ABOVE THE VALLEY AT ITS BASE.

Site location context

Political divisions (FIPS codes)

Las Piedras Municipio(county)

Puerto Rico(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Humacao(quadrangle 1:24,000 scale)

Puerto Rico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Eastern(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
Iron Primary

Materials information

Materials Type of material
Hematite Ore
Magnetite Ore
Garnet Gangue
Quartz Gangue

Mineral occurrence model information

Model code 62
USGS model code 18d
Deposit model name Skarn Fe

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Early Cretaceous
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -65.84778, 18.19983
ListMap

Economic information

Ore body information

  • Strike N 50 W
    Dip 72 NE

Comments on the geologic information

  • THE DEPOSIT IS LOCATED ABOUT 1/3 MILE NORTHEAST OF THE SAN LORENZO BATHOLITH.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Humacao District

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

    FETTKE, C. R., 1924, MAGNETITE DEPOSITS OF EASTERN PORTO RICO: AM. INST. MINING METALL. ENG. TRANS., V. 70, P. 1024-1042.

General comments

Subject category Comment text
Deposit DRUSY CAVITIES LINED WITH TRAPEZOHEDRONS OF GARNET AND SOMETIMES SMALL OCTAHEDRONS OF MAGNETITE, AS WELL AS CRYSTALS OF QUARTZ, ARE COMMON. VEINLETS OF MAGNETITE AND QUARTZ CUT MASSIVE GARNET ROCK; THE GARNET IS REDDISH BROWN, AND QUALITATIVE ANALYSIS INDICATES THAT IT IS ANDRADITE. THE OUTCROP CAN BE TRACED FOR 335 FT.
Deposit [PREVIOUS UPDATER AND DATE: BAWIEC, WALTER J., 90 08.]

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1990 Paidakovich, Matthew E. U.S. Geological Survey
Updater 01-OCT-1991 Paidakovich, Matthew E. U.S. Geological Survey

Beyond USGS

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

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