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  3. Mineral Resource Data System (MRDS)

Brentsville Prospect

Occurrence in Prince William county in Virginia, United States with commodity Copper
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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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  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 10067541
MRDS ID W000324
Record type Site
Current site name Brentsville Prospect

Geographic coordinates

Geographic coordinates: -77.49913, 38.6881 (WGS84)
Elevation 76
Relative position IN BRENTSVILLE

Site location context

Political divisions (FIPS codes)

Prince William(county)

Virginia(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Independent Hill(quadrangle 1:24,000 scale)

Washington West(quadrangle 1:100,000 scale)

Washington(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Potomac-Anacostia-Occoquan(hydrologic unit)

Potomac(hydrologic accounting unit)

Potomac(hydrologic subregion)

Mid Atlantic(hydrologic region)

Geographic areas

Country State County
United States Virginia Prince William

Comments on the location information

  • LOCATION IS 200 M SE OF THE OLD COURTHOUSE.

Commodities

Commodity Importance
Copper Primary

Comments on the commodity information

  • NO DIABASE DIKES WERE FOUND IN THE AREA. DEPOSITS ARE SMALL AND LOW-GRADE.

Materials information

Materials Type of material
Malachite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Bull Run Shale (Newark Group);Manassas Sandstone (Newark Group)
    Rock description Bull Run Shale (Newark Group);Manassas Sandstone (Newark Group)
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -77.49913, 38.6881
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ne-Sw Trend, Culpeper Triassic Basin

Ore body information

  • General form IRREGULAR

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Culpeper Basin

Comments on the reserve resource information

  • "THE AMOUNT OF MINERAL MATTER IN THE SHALE IS QUITE LOW."

Comments on the workings information

  • VISITED THE SITE IN JUNE 1987. BELIEVE PROSPECT TO BE ON MACHEN PROPERTY. ONLY SMALL BITS OF TRIASSIC SHALE WERE SEEN IN THE FIELD.

Comments on development

  • NO ACTIVE PROSPECTING HAS BEEN CONDUCTED.

Reference information

Bibliographic references

  • Deposit

    LUTTRELL, G.W., 1966, BASE- AND PRECIOUS-METAL AND RELATED ORE DEPOSITS OF VIRGINIA: VIRGINIA DIVISION OF MINERAL RESOURCES, MINERAL RESOURCES REPORT 7, 167 P.

  • Deposit

    ROBERTS, J.K., 1928, THE GEOLOGY OF THE VIRGINIA TRIASSIC: VIRGINIA GEOLOGICAL SURVEY BULLETIN 29, 205 P.

  • Deposit

    1920 GEOLMAP VA. GEOL. SURV.: MAPPED ARE

  • Reserve-Resource

    ROBERTS (1928)

General comments

Subject category Comment text
Deposit CU OCCURS A FEW HUNDRED FT. SE. OF THE OLD COURTHOUSE NEAR BRENTSVILLE AND IN A NEARBY SANDSTONE QUARRY. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1972 Wright, Nancy A. U.S. Geological Survey
Updater 01-JUL-1987 Sweet, Palmer C. (Meintzer, Robert 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