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  3. Mineral Resource Data System (MRDS)

Unnamed Cu-Pb-Zn-Mo Occurrence

Occurrence in Saguache county in Colorado, United States with commodities Zinc, Copper, Lead
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10013051
MRDS ID D009132
Record type Site
Current site name Unnamed Cu-Pb-Zn-Mo Occurrence

Geographic coordinates

Geographic coordinates: -106.27254, 38.05362 (WGS84)
Elevation 2676
Relative position 7.5 MILES S 71 E OF SAGUACHE

Site location context

Political divisions (FIPS codes)

Saguache(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Laughlin Gulch(quadrangle 1:24,000 scale)

Saguache(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Saguache(hydrologic unit)

Rio Grande Headwaters(hydrologic accounting unit)

Rio Grande Headwaters(hydrologic subregion)

Rio Grande(hydrologic region)

Federal lands

Rio Grande 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 Colorado Saguache

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 044N 006E 23 E2 OF E2 Colorado

Comments on the location information

  • SECTION DESIGNATION APPROXIMATE DUE TO SURVEY DISTORTION OR PROJECTION INTO UNSURVEYED AREA. SITE LIES AT BASE OF KNOLL NORTH TRACY CANYON ; INFO FROM LAND.ST :1977

Commodities

Commodity Importance
Zinc Critical Tertiary
Copper Tertiary
Lead Tertiary

Comments on the commodity information

  • SULFIDE ORES NOT DIRECTLY OBSERVED BUT POSTULATED ON BASIS OF GEOCHEMICAL ANALYSIS

Materials information

Materials Type of material
Chalcopyrite Ore
Molybdenite Ore
Pyrite Ore

Alteration

  • (Local) Gradationally Altered Zones Begin With High-Silica Jasperoid Breccia Pipes, Surrounded By Advanced Argillic Breccia And Volcanics, Then By Nonbrecciated Silicified Quartz Latite

Analytical data

Result GEOCHEMICAL ANALYSES OF ROCK-CHIP SAMPLES INDICATE ANOMALOUS CONCENTRATIONS OF CU (GT 100 PPM), PB (GT 70 PPM), ZN (GT 200 PPM), AND MO (GT 100 PPM). SAMPLE NO. 185 CONTAINED THE FOLLOWING (N=NOT DETECTED, L=PRESENT BUT BELOW LEVEL OF DETERMINATION): 50 PPM CU, 30 PPM PB, 200 PPM ZN, N PPM MO. SAMPLE IS FROM PORPHYRITIC ANDESITE

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Conejos Formation
    Rock description Conejos Formation
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Conejos Formation
    Rock description Conejos Formation

Nearby scientific data

(1) -106.27254, 38.05362
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Volcanic Field, Rio Grande Rift
Type of structure Local
Structure description Unnamed Normal Faults, Small Horsts And Grabens

Controls for ore emplacement

  • Anomalous Cu-Pb-Zn Values Occur Primarily In Advanced Argillic Zone And Secondarily In Unaltered To Silicified Quartz Latite. Highest Values In Advanced Argillic Breccias. Anomalous Mo Associated With Advanced Argillic And High-Silica Alteration Zone

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Tracy Canyon Area

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner W. A. Bowes And Associates
    Home office Steamboat Springs, Co.
    First year 1969

Reference information

Bibliographic references

  • Deposit

    NEWMAN, J.W., 1976, THE GEOLOGY OF THE TRACY CANYON AREA, SAGUACHE COUNTY, COLORADO: COLORADO STATE UNIV. M.S. THESIS, 106 P

General comments

Subject category Comment text
Deposit GEOCHEMICAL ANOMALIES ASSOCIATED WITH ZONED HYDROTHERMAL ALTERATION AROUND SMALL NORMAL FAULTS AND JASPEROID BRECCIA PIPES IN GENTLY DIPPING QUARTZ LATITE AND ANDESITE LAVA FLOWS AND GRANODIORITIC TO ANDESITIC INTRUSIVES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1982 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.