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Deposit No. 4

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. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10111561
MRDS ID W701129
Record type Site
Current site name Deposit No. 4

Geographic coordinates

Geographic coordinates: -65.82389, 18.18872 (WGS84)
Relative position ABOUT 1 1/2 MILES SOUTHEAST OF DEPOSIT NO. 3.

Site location context

Political divisions (FIPS codes)

Humacao 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

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 Sedimentary Rock > Carbonate

Nearby scientific data

(1) -65.82389, 18.18872
ListMap

Economic information

Comments on the geologic information

  • THE MAIN SAN LORENZO BATHOLITH LIES 3/4 MILE TO THE SOUTHWEST, WHILE A SMALL OFFSHOOT FROM IT CROPS OUT ONLY 1/3 MILE AWAY.

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 DEPOSIT OCCUPIES NEARLY THE ENTIRE CREST OF A HILL. IT HAS A LENGTH OF NEARLY 200 FT. AND A MAXIMUM WIDTH OF 80 FT. AT THE WESTERN END, WHERE SOME COARSE MICACEOUS HEMATITE, ASSOCIATED WITH QUARTZ, AS WELL AS MASSIVE MAGNETITE ARE PRESENT.
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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