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Black Velvet

Occurrence in Grant county in Oregon, United States with commodity Chromium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10033043
MRDS ID M014926
Record type Site
Current site name Black Velvet
Related records 10128224

Geographic coordinates

Geographic coordinates: -118.92578, 44.35485 (WGS84)

Site location context

Political divisions (FIPS codes)

Grant(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Canyon Mountain(quadrangle 1:24,000 scale)

John Day(quadrangle 1:100,000 scale)

Canyon City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper John Day(hydrologic unit)

John Day(hydrologic accounting unit)

Middle Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Malheur National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Oregon Grant

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 014S 032E 18 SW Oregon

Comments on the location information

  • PROPERTY EMBRACES THE NORTH FORK OF THE JOHN DAY RIVER FROM SEC. 33, T. 6 S., R. 32 E. UPSTREAM TO JUST BELOW MOUTH OF GRANITE CREEK IN T. 8 S., R. 34 E. LOCATION GIVEN IS ALONG RIVER AT BOUNDARY BETWEEN SECS. 10 AND 11.; PREVIOUS QUAD DESIGNATION = KELSAY BUTTE 1:24000
  • SW 1/4 PROSPECT IS 750 FT. NW OF IRON KING WORKINGS.

Commodities

Commodity Importance
Chromium Critical Primary

Comments on the commodity information

  • GOLD IS COARSE TO FLOUR SIZED

Materials information

Materials Type of material
Chromite Ore

Analytical data

Result ORE PROBABLY CONTAINS BETWEEN 15 AND 25 % CHROMIC OXIDE.

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Rock unit name Canyon Mtn. Complex
    Rock description Canyon Mtn. Complex
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) Gabbroic rocks
ListMap

Economic information

Ore body information

  • General form TABULAR
    Width 2.44M

Comments on the geologic information

  • BOULDERS CONSIST OF GRANITE WITH A LITTLE SCHIST AND LAVA. GOLD APPEARS FROM 6 TO SEVERAL FT ABOVE BEDROCK. GRAVELS AVERAGE 100 FT WIDE AND 10 FT DEEP; BOULDERS AVERAGE <2 FT IN DIAMETER, WITH A FINE GRAVEL AND SANDY MATRIX; NO CLAY
  • SERPENTINE IS DERIVED FROM DUNITE. ; GEOL.DESC: CHROMITE PINCHES OUT AT NORTH END. ALONG FAULT (IN NORTHERN TRENCH) SPOTTED CHROMITE AND SERPENTINE HAVE BEEN GROUND TO A STREAKED GRAY AND BROWN MASSIVE ROCK WHICH IS AS FULLY HARD AS ADJOINING SERPENTINIZED OLIVINITE. ELSEWHERE CONTACTS ARE GRADATIONAL.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Canyon

Land status

Ownership category
Area name Malheur Natioal Forest

Comments on the production information

  • AN ADDITIONAL $200,000 AU IS ESTIMATED TO HAVE BEEN PRODUCED FROM THE CALHOUN-HOWELL OPERATION IN 1947-1950. VALUES RANGED FROM $0.20-0.30/YD HANDLED (1947)

Comments on the workings information

  • HYDRAULICKED IN EARLY DAYS. APPROXIMATELY 3 MI OF RIVER WORKED PRIOR TO WWII BY THE DAVIS DRAGLINE DREDGE. THE CALHOUN AND HOWELL DRAGLINE DREDGE WORKED UP STREAM TO THE BIG CREEK JUNCTION IN 1947-1950. ACREAGE GIVEN IS FOR 18 CLAIMS
  • ORE EXPOSED IN 2 CUTS FOR A DISTANCE OF 60 FT.

Comments on development

  • 30.5 CLAIMS TOTAL

Reference information

Bibliographic references

  • Deposit

    ALLEN, J. E., 1938 , CHROMITE DEPOSITS IN OREGON: ODGMI, BULL 9 , P. 55 .

  • Deposit

    OREGON METAL MINES HANDBOOK, 1941 , ODGMI, BULL. 14 - B, P. 19 .

  • Deposit

    THAYER, T. P., 1940 , CHROMITE DEPOSITS OF GRANT COUNTY, ORE., U.S.G.S. BULL. 922 - D, P. 99 - 100 .

General comments

Subject category Comment text
Deposit GRAVELS ARE CONTAINED IN OLD RIVER TERRACES. BENCH AVERAGES 10 FT THICK ON GRANITE BEDROCK, IS 50-75 FT ABOVE THE RIVER.
Deposit ORE HAS PLANAR BANDING THAT DIPS PARALLEL TO BANDING IN ENCLOSING OLIVINITE. BANDING IS N - S, DIPPING 20 DEG. W.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Lee, W. U.S. Geological Survey
Updater 01-JUN-1978 Bradley, Robin (Walker, George W.) U.S. Geological Survey
Updater 01-FEB-1980 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries

Beyond USGS

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

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