1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Asiatic Mine

Occurrence in Conejos county in Colorado, United States with commodity Gold
Map
XML
JSON
KML
B
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. Mineral occurrence model information
  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. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10014027
MRDS ID D010637
Record type Site
Current site name Asiatic Mine
Alternate or previous names Patented Claims: Asiatic 1-4 Placer, MS 16857a, Alabama, MS 16857a, Maine, MS 16857a, Louisiana, MS 16857a, Ohio, MS 16857a, Olimpia, MS 16857a, Monterey, MS 16857a, Oregon, MS 16857a, Brooklyn, MS 16857a, Delaware, MS 16857a, Petrel, MS 16857a, Texas, MS 16857a, Baltimore, MS 16857a, Kearsarge, MS 16857a, Illinois, MS 16857a, Merrimac, MS 16857a, Montgomery, MS 16857a, Asiatic Mill Site, MS 16857b
Related records 10167024

Geographic coordinates

Geographic coordinates: -106.62366, 37.37724 (WGS84)
Elevation 3335
Relative position 4 MILES S 12 W FROM SUMMITVILLE

Site location context

Political divisions (FIPS codes)

Conejos(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Summitville(quadrangle 1:24,000 scale)

Antonito(quadrangle 1:100,000 scale)

Durango(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alamosa-Trinchera(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 Conejos

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 036N 003E 02,11,12 Colorado

Comments on the location information

  • AT SOUTH BASE OF SHEEPSHEAD NORTH OF ASIATIC CREEK AND LAKE DE NOLDA, 1.9 MILES SW OF LOOKOUT MTN. ; INFO FROM LAND.ST :1975

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Petzite Ore
Alunite Gangue
Quartz Gangue

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite
    Rock unit name Intrusive Rocks--Quartz Latite Porphyry;Intrusive Rocks--Andesite Porphyry
    Rock description Intrusive Rocks--Quartz Latite Porphyry;Intrusive Rocks--Andesite Porphyry
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite
    Rock unit name Summitville Andesite;La Jara Canyon Member Of Treasure Mountain Tuff
    Rock description Summitville Andesite;La Jara Canyon Member Of Treasure Mountain Tuff
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -106.62366, 37.37724
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Volcanic Field
Type of structure Local
Structure description Platoro Caldera, Summitville Caldera, Alamosa River Stock, Sheepshead Vent-Dome

Controls for ore emplacement

  • Sheepshead Vent-Dome, West Margin Of Platoro Caldera

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1904

Mining district

District name Decatur West (Stunner) District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Asiatic Mining Co.
    First year 1913

Workings at the site

  • Type of workings Underground
    Length 396.24M

Comments on the workings information

  • ONE TUNNEL DRIVEN N 15 W FOR 1300 FT

Reference information

Bibliographic references

  • Deposit

    PATTON, H.B., 1917, GEOLOGY AND ORE DEPOSITS OF THE PLATORO-SUMMITVILLE MINING DISTRICT, COLORADO: CGS BULL. 13.

  • Deposit

    LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.

  • Deposit

    GOW, T.T., AND YANG, W.T., 1914, SURVEY NORTHWEST OF GILMORE, CONEJOS COUNTY, COLORADO: COLORADO SCHOOL OF MINES THESIS T-465.

  • Deposit

    CALKIN, W.S., 1967, GEOLOGY, ALTERATION, AND MINERALIZATION OF THE ALUM CREEK AREA, SAN JUAN VOLCANIC FIELD, COLORADO: COLORADO SCHOOL OF MINES THESIS T-1113.

  • Deposit

    BLM MINERAL SURVEYS MS 16857A, 16857B

General comments

Subject category Comment text
Deposit POST-SUMMITVILLE-COLLAPSE IGNEOUS ACTIVITY INCLUDES EMPLACEMENT OF ALAMOSA RIVER MONZONITE STOCK ALONG SOUTH BOUNDING CORNWALL RING FAULT AND LOCAL VOLCANIC VENTS--SHEEPSHEAD, LOOKOUT MTN, ELEPHANT MTN. SHEEPSHEAD QUARTZ LATITE PORPHYRY VENT APPEARS TO HAVE OPENED ON WEST WALL OF PLATORO CALDERA, ASCENDING THROUGH TREASURE MTN TUFF EITHER ON OR JUST OUTSIDE CALDERA AND THROUGH UPPER SUMMITVILLE ANDESITE. MINERALIZATION COULD HAVE BEEN FOUND IN ALTERED RADIAL FRACTURE OR ALONG QUARTZ LATITE OR ANDESITE PORPHYRY DIKE. CALKIN (1967) DESCRIBES VENT-DOME COMPLEXES AS CONSISTING OF LOWER FRIABLE AGGLOMERATIC TUFF (QUARTZ LATITE AND VITROPHYRE), MIDDLE BLACK VITROPHYRE INTERMIXED AND INTERCALATED WITH UPPER QUARTZ LATITE CORE. CALKIN MAPS NW-TRENDING FAULT EXTENDING DOWN GULCH FROM JUST WEST OF SHEEPSHEAD. TUNNEL PROBABLY PASSES THROUGH PROGRESSIVELY SOLFATARIC ALTERED ROCKS, FROM OUTER PROPYLITIC ZONE THROUGH ARGILLIC ZONE INTO QUARTZ-ALUNITE ZONE ADJACENT TO VENT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1983 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.