Old Triplett Placer

Past Producer in Baltimore county in Maryland, United States with commodity Chromium
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. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10267246
MAS/MILS ID 0240050005
Record type Site
Current site name Old Triplett Placer

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -76.85187, 39.40973 (WGS84)
Elevation 182
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Baltimore(county)

Maryland(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Reisterstown(quadrangle 1:24,000 scale)

Baltimore(quadrangle 1:100,000 scale)

Baltimore(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Gunpowder-Patapsco(hydrologic unit)

Upper Chesapeake(hydrologic accounting unit)

Upper Chesapeake(hydrologic subregion)

Mid Atlantic(hydrologic region)

Geographic areas

Country State County
United States Maryland Baltimore

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Unknown

Nearby scientific data

Ore Body (1) -76.85187, 39.40973

Economic information

Ore body information

  • Thickness 1.2M
    Length 275M
    Width 76M
    Area 2.1HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 PLACER
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Secondary Ore Control OTHER
    Type of Wallrock Alter. #1 UNKNOWN
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 1.3
    Total Surface Area (HA) 2.1
    Date of Last Modification 820616

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Significant Yes
Mining method Alluvial Mining
Milling method Gravity

Mining district

District name Soldiersdelight

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category State

Comments on the ownership information

  • CURRENT OWNER NOT DETERMINED

Comments on the production information

  • CHEMICAL GRADE CR2O3

Reserves and resources

  • Type In-situ
    Estimate year 1943
    Indicated 57000mt ore
    Demonstrated 57000mt ore
    Total resources 57000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 3.2599 wt-pct Chromium Major 1943

Comments on the reserve resource information

  • Q MATRIX REFLECTS TONNAGE & GRADE DERIVED FROM WASHED SAMPLE REPORTED IN R MATRIX. M9C4 = M1C1.

Workings at the site

  • Type of workings Surface
    Area 2.1HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .8
    Percent Waste Rock 0
    Avg. Overburden Thickness 0
    Hardness of Ore SAND, SILT
    Capacity 200
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 2.64
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 1
    Year of Information 1979

Reference information

Bibliographic references

  • Reserve-Resource

    JERMAIN G D CONFIDENTIAL WAR MINERALS REPORT REG FILE NO 536

  • Deposit

    PEARRE N HEYL A U S G S BUL 1082K PGS 759-760 1960

  • Deposit

    SINGEWALD J THE CHROME INDUSTRY IN MD MD GEOL SUR VOL 12 192

  • Deposit

    HUNTER, W.L. AND G.V. SULLIVAN. UTILIZATION STUDIES ON

  • Deposit

    CHROMITE FROM SEIAD CREEK, CALIF. BUMINES RI 5576. 1960

  • Deposit

    BALTIMORE REGIONAL PLANING COUNCIL. GENERAL DEVELOPMENT PLAN

  • Deposit

    FOR THE BALTIMORE REGION, DECEMBER 15, 1972. 137 PP.

General comments

Subject category Comment text
Deposit SOLDIERS DELIGHT DISTRICT ARE LISTED IN RECORDS 813-822 THE DOMAIN MAY NOW BE STATE OWNED AS THE RESULT OF A RECENT PROGRAM TO ACQUIRE LANDS AND DESIGNATE TH ENVIRONMENTAL ENHANCEMENT AREAS AND WATER RESOURCE SITES CAL E SOLDIERS DELIGHT STATE NATURAL ENVIRONMENTAL AREA FROM THE ERAL DEVELOPMENT PLAN FOR THE BALTIMORE REGION SEPT 1972 PRE ED BY THE BALTIMORE COUNTY REGIONAL PLANNING COUNCIL A TELEP CONVERSATION WITH THE SAME PLANNING BOARD CONFIRMED THAT THE HAS PURCHASED LARGE TRACTS IN THE AREA FOR THE PURPOSE OF PR G ITS NATURAL FEATURES A FEW OF THE PLACER STREAMS DRAIN INT ERTY LAKE A RESERVOIR FOR THE BALTIMORE CITY AREA LOCATED ON LAND SCHEDULED FOR STATE ENVIRONMENTAL ENHANCEMENT

Reporter information

Type Date Name Affiliation Comment
Reporter 21-MAR-95 Md-Mf-Cpm U.S. Bureau of Mines

Beyond USGS

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