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Mrs. Roberts Deeded Land

Occurrence in Gunnison county in Colorado, United States with commodities Thorium, Lead, Copper, Zinc, REE
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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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10014419
MRDS ID D011175
Record type Site
Current site name Mrs. Roberts Deeded Land

Geographic coordinates

Geographic coordinates: -107.08062, 38.33389 (WGS84)
Elevation 2771
Relative position 16.5 MILES S 31 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

Powderhorn(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)

Geographic areas

Country State County
United States Colorado Gunnison

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 047N 002W 15 N2 OF N2 OF NE Colorado

Comments on the location information

  • EAST OF AND NEAR HEAD OF WOLF CREEK. ; INFO FROM LAND.ST :1976

Commodities

Commodity Importance
Thorium Primary
Lead Tertiary
Copper Tertiary
Zinc Critical Tertiary
REE Critical Tertiary

Comments on the commodity information

  • BASE METALS AND RARE EARTHS LISTED ABOVE ARE GENERAL OCCURRENCES REPORTED FOR TH VEINS IN AREA; ALL MAY NOT NECESSARILY OCCUR AT THIS SITE.

Materials information

Materials Type of material
Thorite Ore
Apatite Gangue
Barite Gangue
Calcite Gangue
Chalcopyrite Gangue
Fluorite Gangue
Galena Gangue
Goethite Gangue
Hematite Gangue
Jasper Gangue
Magnetite Gangue
Pyrite Gangue
Quartz Gangue
Rutile Gangue
Specularite Gangue
Sphalerite Gangue

Analytical data

Result BACKGROUND RADIATION 0.01 TO 0.02 MR/HR. SIX SAMPLES GAVE COUNTS OF 0.6 TO 2.0 MR/HR. ANALYSES: SAMPLE F-35063, 0.072% EQUIV U308, 0.048% U308, 0.11% EQUIV THO2
Result SAMPLE F-35064, 0.19% EQUIV U308, 0.28% U308
Result SAMPLE F-35065, 1.11% EQUIV U308, 0.002% U308, 5.35% EQUIV THO2
Result 4.77% THO2
Result SAMPLE F-35066, 0.097% EQUIV U308, 0.056% U308, 0.20% EQUIV THO2
Result SAMPLE F-35067, 0.087% EQUIV U308, 0.078% U308, 0.046% EQUIV THO2
Result SAMPLE F-35068, 0.17% EQUIV U308, 0.012% U308, 0.74% EQUIV THO2.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Dubois Greenstone--Metavolcanic Hornblende Schist And Amphibolite
    Rock description Dubois Greenstone--Metavolcanic Hornblende Schist And Amphibolite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Amphibolite

Nearby scientific data

(1) -107.08062, 38.33389
ListMap

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, Tolvar Peak Stock

Ore body information

  • General form TABULAR

Controls for ore emplacement

  • Ne-Trending Vein Cutting Across Foliation Of Schist

Comments on the geologic information

  • OTHER MINERALS LISTED ABOVE ARE GENERAL OCCURRENCES REPORTED FOR TH VEINS IN AREA; ALL MAY NOT NECESSARILY OCCUR AT THIS SITE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Goose Creek District

Land status

Ownership category Private

Comments on the workings information

  • FIVE SURFACE PROSPECT PITS; TRENCHES

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 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. FOLIATION OF DUBOIS GREENSTONE COUNTRY ROCK TRENDS GENERALLY N 85 TO 90 E, 85 NE. MALAN'S DESCRIPTION GIVES TREND OF SHEAR ZONE AS N 72 E, BUT GEOLOGIC MAP SHOWS VEIN TREND OF N 63 E.

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.