Trill Bird Deposit

The Trill Bird Deposit is a mine located in Conejos county, Colorado at an elevation of 10,161 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Trill Bird Deposit

State:  Colorado

County:  Conejos

Elevation: 10,161 Feet (3,097 Meters)

Commodity:

Lat, Long: 37.34444, -106.60417

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Trill Bird Deposit

Trill Bird Deposit MRDS details

Site Name

Primary: Trill Bird Deposit


Commodity

Tertiary: Gold
Tertiary: Copper


Location

State: Colorado
County: Conejos
District: Ute (Platoro) District


Land Status

Land ownership: Federal
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1971
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains


Mineral Deposit Model

Model Name: Epithermal quartz-alunite Au


Orebody

Not available


Structure

Type: R
Description: San Juan Volcanic Field

Type: L
Description: Platoro Caldera (Rim)


Alterations

Alteration Type: L
Alteration Text: Alteration Generally Argillic But Local Silicic And Propylitic Occur; Fe Oxidation (Hematite Staining)


Rocks

Name: Rhyodacite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene

Name: Rhyodacite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene

Name: Rhyodacite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene


Analytical Data

Analytical Data: 0.002 TO 10 OZ/TON AU, UP TO 210 PPM CU


Materials

Ore: Chalcopyrite
Ore: Pyrite
Ore: Gold
Gangue: Goethite
Gangue: Calcite


Comments

Comment (Deposit): DEPOSIT IS DISSEMINATED AU AND MEGASCOPIC PYRITE AND CHALCOPYRITE IN PRECALDERA CONEJOS FM BRECCIAS JUST OUTSIDE CALDERA RIM FAULT. MINERALIZING SOLUTIONS ROSE THROUGH CALDERA RIM FAULT AND ASSOCIATED FRACTURES AND INTO POROUS BRECCIAS. CONEJOS SEQUENCE CUT BY NE-TRENDING ANDESITE PORPHYRY DIKES. PYRITE LOCALIZED IN BRECCIA FRAGMENTS AND MATRIX AND COMPRISES UP TO 5% OF ROCK. ASSAYS INDICATE DISSEMINATED AU ALTHOUGH MEGASCOPIC CHALCOPYRITE AND NATIVE AU FOUND. BIRD INTERPRETS ORIGIN AS LOW-TEMPERATURE GASEOUS TRANSPORT, SIMILAR TO VERA BRECCIA PIPE.

Comment (Location): ALONG ADAMS FORK WEST OF UPPER PLATORO RESERVOIR. ELEV AND LAT-LONG GIVEN ARE FOR CONTACT BETWEEN CONEJOS BRECCIA UNIT AND FLOWS IN E2 SEC. 25 (SECTIONS PROJECTED INTO UNSURVEYED AREA). ; INFO FROM LAND.ST :1975


References

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

Reference (Deposit): BIRD, W.H., 1973, THE DEVELOPMENT OF THE SOUTHERN PORTION OF THE PLATORO CALDERA COMPLEX AND ITS RELATED MINERAL DEPOSITS, SOUTHEAST SAN JUAN MOUNTAINS, COLORADO: COLORADO SCHOOL OF MINTE THESIS T-1440.


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