Barrett Prospect

Prospect in Washington county in Maine, United States with commodities Calcium, Copper, Gold, Silica, Silver, Dolomite, Zinc
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mineral rights holdings
  11. Land status
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10145950
MAS/MILS ID 0230290014
Record type Site
Current site name Barrett Prospect
Alternate or previous names Sinclair Farm Prospect

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -67.22621, 44.96884 (WGS84)
Elevation 56
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Washington(county)

Maine(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pembroke(quadrangle 1:24,000 scale)

Machias(quadrangle 1:100,000 scale)

Eastport(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Maine Coastal(hydrologic unit)

Maine Coastal(hydrologic accounting unit)

Maine Coastal(hydrologic subregion)

New England(hydrologic region)

Geographic areas

Country State County
United States Maine Washington

Commodities

Commodity Importance
Calcium Tertiary
Copper Tertiary
Gold Tertiary
Silica Tertiary
Silver Tertiary
Dolomite Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Arsenopyrite Unknown
Bornite Unknown
Calcite Unknown
Chalcopyrite Unknown
Chlorite Unknown
Dolomite Unknown
Galena Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) Silurian Edmunds Formation

Economic information

Ore body information

  • Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 UNKNOWN
    Type of Orebody #2 BRECCIA FILL
    Type of Orebody #3 DISSEMINATED
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 PROPYLITIC
    Date of Last Modification 820319

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Prospect
Commodity type Both
Significant No

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Private

Reserves and resources

  • Type In-situ
    Estimate year 1966
    Inferred 349300mt ore
    Total resources 349300mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.75 wt-pct Copper Trace 1966
    Silver Ag 20.6 g/mt Silver Trace 1966
    Gold Au 7.9 g/mt Gold Trace 1966

Reference information

Bibliographic references

  • Deposit

    YOUNG, R.S., 1963, "PROSPECT EVALUATIONS WASHINGTON COUNTY,

  • Deposit

    MAINE GEOL. SURV. SPEC. ECON. SER. NO. 3, 86 P.

  • Deposit

    EMMONS, W.H., 1910, SOM ORE DEPOSITS IN MAINE AND NEW HAMPSH

  • Deposit

    U.S. GEOL. SURV. BULL. 432, P. 46-47.

  • Deposit

    YOUNG, R.S., 1968, MINERAL EXPLORATION AND DEVELOPMENT IN MA

  • Deposit

    ORE DEPOSITS OF THE UNITED STATES1933-1967, GRATON AND SALES

  • Deposit

    UMES, J.D. RIDGE, ED. V. 1 PP. 125-139.

General comments

Subject category Comment text
Deposit DATE OF COMMENTS: JUNE, 1976. REC. 010, COMMODITIES 5-7 ARE NOV-RECOVERABLE GANGUE MINERAL REC. 010, TYPE MINING ENTERED AS SURFACE-UNDERGROUND DUE TO UNCERTAINTY BASED ON LACK OF INFORMATION. REC. 060, GEOL. AGE OF FORMATION IS SILVRIAN-MIDDLE DEVONIAN REC. A-10 (MATRIX) SHOWS PUBLISHED, DRILL INDICATED RESERVES BARRETT PROSPECT. SOURCE OF INFO.IS REF. 706. UNPUBLISHED INFORMATION MAY EXIST BUT IS NOT AVAILABLE TO THE PUBLIC AT THIS TIME.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Dunn, George U.S. Bureau of Mines

Beyond USGS

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