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Unnamed Mine

Past Producer in Gunnison county in Colorado, United States with commodities Lead, Zinc, Thorium
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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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10101886
MRDS ID D011149
Record type Site
Current site name Unnamed Mine

Geographic coordinates

Geographic coordinates: -107.24424, 38.38667 (WGS84)
Elevation 2316
Relative position 20.1 MILES S 58 W FROM GUNNISON

Site location context

Political divisions (FIPS codes)

Gunnison(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Carpenter Ridge(quadrangle 1:24,000 scale)

Montrose(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gunnison(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CO)

Bureau of Land Management CO BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Curecanti National Recreation Area(National Recreation Area)

National Recreation Area NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State County
United States Colorado Gunnison

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 048N 003W 29 NW OF SW OF NW Colorado

Comments on the location information

  • ON WEST SIDE OF LAKE FORK GUNNISON RIVER ABOUT 0.1 MILE NORTH OF MARION SIDING. ; INFO FROM LAND.ST :1975

Commodities

Commodity Importance
Lead Primary
Zinc Critical Tertiary
Thorium Tertiary

Materials information

Materials Type of material
Galena Ore
Pyrite Ore
Sphalerite Ore
Thorite Ore
Anhydrite Gangue
Ankerite Gangue
Barite Gangue
Limonite Gangue
Quartz Gangue

Analytical data

Result OLSON AND WALLACE (1956) CITE MAXIMUM RADIATION COUNT OF 0.2 MR/HR . SAMPLE ANALYSIS ONE CONTAINED 0.050 % EQUIV URANIUM AND 0.18 % THO2

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Granitic Rocks-Pegmatite Dikes;Granitic Rocks--Granite And Quartz Monzonite
    Rock description Granitic Rocks-Pegmatite Dikes;Granitic Rocks--Granite And Quartz Monzonite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Black Canyon Schist
    Rock description Black Canyon Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Economic information

Geologic structures

Type of structure Regional
Structure description Gunnison Uplift, San Juan Volcanic Field
Type of structure Local
Structure description Gunnison Gold Belt, Iron Hill Alkalic Complex

Ore body information

  • General form LENTICULAR
    Thickness 0.61M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Marion-Vanguard Area

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • ADIT DRIVEN GENERALLY EAST OR NE FOR 55 FT; 25- TO 30-FT-HIGH STOPE. SECOND 35-FT ADIT MAY BE LOCATED TO SOUTH

Reference information

Bibliographic references

  • Deposit

    HEDLUND, D.C., AND OLSON, J.C., 1973, GEOLOGIC MAP OF THE CARPENTER RIDGE QUADRANGLE, GUNNISON COUNTY, COLORADO: USGS MAP GQ-1070.

  • Deposit

    HEDLUND, D.C., AND OLSON, J.C., 1961, FOUR ENVIRONMENTS OF THORIUM-, NIOBIUM-, AND RARE-EARTH-BEARING MINERALS IN THE POWDERHORN DISTRICT, COLORADO: USGS PROF. PAPER 424-B, P. B283-B286.

  • Deposit

    BURBANK, W.S., 1951, AEC PRELIM. RECON. REPTS. D-211, D-92.

  • Deposit

    OLSON, J.C., AND WALLACE, S.R., 1956, THORIUM AND RARE-EARTH MINERALS IN POWDERHORN DISTRICT, GUNNISON COUNTY, COLORADO: USGS BULL. 1027-O, P. 720.

General comments

Subject category Comment text
Deposit FOLIATION OF SCHIST AND GNEISS COUNTRY ROCK TRENDS GENERALLY N 72 TO 80 W, 60 TO 90 NE, PEGMATITES AND GRANITE DIKES OF VARIABLE TREND. BURBANK (1951) NOTED VEIN TRENDING N 80 W, 83 NE. THORIUM VEINS IN THIS AREA ARE ONE OF FOUR ENVIRONMENTS OF TH OCCURRENCE KNOWN IN POWDERHORN-IRON HILL AREA AND ARE PROBABLY RELATED TO EMPLACEMENT OF LATE PRECAMBRIAN SYENITES NORTH AND WEST OF IRON HILL AND OF YOUNGER LATE PRECAMBRIAN OR CAMBRIAN CARBONATITES AT IRON HILL.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1984 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.