1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Laundry Creek Prospect

Occurrence in Puerto Rico, United States with commodity Copper
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Alteration
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10085421
MRDS ID W701012
Record type Site
Current site name Laundry Creek Prospect

Geographic coordinates

Geographic coordinates: -66.83836, 18.28955 (WGS84)
Relative position ABOUT 6 KM WNW OF TANAMA DEPOSIT

Site location context

Political divisions (FIPS codes)

Lares Municipio(county)

Puerto Rico(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bayaney(quadrangle 1:24,000 scale)

Puerto Rico C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Puerto Rico(hydrologic accounting unit)

Puerto Rico(hydrologic subregion)

Caribbean(hydrologic region)

Geographic areas

Country State
United States Puerto Rico

Commodities

Commodity Importance
Copper Primary

Alteration

  • (Local) Sericitic And Argillic Alteration Found Interspersed With Feldspar-Stable Alteration In 3 Drill Holes, But No Zoning Pattern Was Established

Mineral occurrence model information

Model code 78
USGS model code 20c
Deposit model name Porphyry Cu-Au
Mark3 model number 34

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Tonalite
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Tonalite

Nearby scientific data

(1) -66.83836, 18.28955
ListMap

Economic information

Comments on the geologic information

  • LATE-STAGE ZEOLITE VEINS CUT THE FELDSPAR-STABLE-ALTERATION PART OF THE DEPOSIT.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Reserves and resources

  • Type In-situ
    Estimate year 1967
    Total resources 7709000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.6 wt-pct Copper Major 1967

Comments on the reserve resource information

  • THE LAUNDRY CREEK PROSPECT APPEARED TO BE HIGHLY ATTRACTIVE ON THE BASIS OF LIMITED OUTCROPS AND GEOCHEMICAL EXPRESSION BUT WAS FOUND ON DRILLING TO HAVE TOO SMALL A TONNAGE FOR ECONOMIC INTEREST (COX, 1985, P. 13).

Comments on development

  • OCCURRENCE WAS RECOGNIZED BY VERY LARGE STREAM-SEDIMENT COPPER ANOMALIES AND MINOR COPPER MINERALIZATION IN OUTCROPS. DIAMOND DRILLING BEGAN IN JULY 1959. ; ECON.COM: 34 DRILL HOLES HAVE DELINEATED THIS ZONE. BECAUSE THE DEPOSIT IS LOCATED ON FLAT ROLLING TOPOGRAPHY, THE STRIPPING RATIO WOULD BE HIGH.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit DEPOSIT IS A STEEPLY DIPPING EAST-WEST TABULAR ZONE OF MINERALIZED QUARTZ DIORITE IN AN UNMINERALIZED QUARTZ DIORITE STOCK. ONLY A SMALL PART OF THE TONALITE PORPHYRY PLUTON AT LAUNDRY CREEK IS MINERALIZED.
Deposit [PREVIOUS UPDATERS: BAWIEC, WALTER J., 90 07, USGS; SCHELLEKENS, J.H., 91 07, UPR.]

Reporter information

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

Beyond USGS

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

Maps centered on this site