Tecoma District Deposits

The Tecoma District Deposits is a lead mine located in Elko county, Nevada at an elevation of 5,709 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

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.

Site Name

Primary: Tecoma District Deposits
Secondary: Jackson Mines
Secondary: Bullock
Secondary: Jackson Group
Secondary: All-Star
Secondary: Morning Star
Secondary: Evening Star
Secondary: North Star

Commodity

Primary: Lead
Secondary: Copper
Secondary: Zinc
Secondary: Silver
Secondary: Gold
Tertiary: Molybdenum

Location

State: Nevada
County: Elko
District: Tecoma District

Land Status

Land ownership: BLM Administrative Area
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.
Administrative Organization: Elko BLM Administrative District

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: replacement
Operation Type: Surface-Underground
Year First Production: 1951
Discovery Year: 1906
Years of Production:
Organization:
Significant: Y
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Model Name: Polymetallic replacement

Orebody

Form: roughly tabular

Structure

Type: L
Description: Numerous faults cut the host rocks in the deposit area.

Alterations

Alteration Type: L
Alteration Text: Host rocks are silicified

Rocks

Name: Porphyry
Role: Associated
Description: granite
Age Type: Associated Rock
Age Young: Tertiary

Name: Granite
Role: Associated
Description: porphyry
Age Type: Associated Rock
Age Young: Tertiary

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Devonian

Analytical Data

Not available

Materials

Ore: Galena
Ore: Anglesite
Ore: Cerussite
Ore: Wulfenite
Ore: Clay
Ore: Barite
Ore: Quartz
Gangue: Calcite

Comments

Comment (Commodity): Ore Materials: lead carbonates, galena, anglesite, cerussite, wulfenite

Comment (Commodity): Gangue Materials: calcite, clay, barite, quartz, iron oxide

Comment (Deposit): Ore bodies in the district are replacements of limestone in jasperoid along a fracture zone. The jasperoid zone is up to 40 ft wide. Wulfenite crystals occur on calcite within the zone.

Comment (Development): The Jackson Mine was discovered in 1906. It was the district?s main producer, and was operating in 1951

Comment (Identification): The Nevada portion of the Tecoma district has the only production, however the remaining resource is in the Utah portion of the district. UTM location is to the most productive mined area of the Nevada Tecoma district.

Comment (Location): The mineralized area occurs on the west side of the southern end of a low ridge .

Comment (Workings): The Tecoma district mines are developed by many tunnels, short shafts, drifts, stopes, and the 250-ft. Jackson shaft with 6 levels. More recent surface exploration has occurred in the district.

References

Reference (Deposit): laPointe and others, 1991, NBMG Bull 106

Reference (Deposit): Douglas, I., 1990, Geology of the Tecoma disseminated gold-silver deposit, in Shaddrick, D.R., Kizis, J.A., Jr., and Hunsaker, E.L., III, eds., Geology and ore deposits of the Great Basin; a Symposium: Reno, Geological Society of Nevada, p. 175-176.

Reference (Deposit): Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Significant deposits of gold, silver, copper, lead, and zinc in the United States: U.S. Geological Survey Open-File Report 90-206A, 33 p.; 98-206B. one 3.5 inch diskette.

Reference (Deposit): Tingley, J. V., 1980, unpublished field notes on file, NMBG

Reference (Deposit): Ian Douglas, 1984, Geology and gold-silver mineralization of the Tecoma District, Elko County, Nevada and Box Elder County, Utah, MS Thesis, Stanford Univ.

Reference (Deposit): Granger, A.E., et al, 1957, Geology and mineral resources of Elko County, Nevada, NBMG Bull 54.

Reference (Deposit): Smith, R.M., Mineral Resources of Elko County, Nevada, USGS Open File Report, 1976-56

Reference (Deposit): Hill, James M., 1916, Notes on some Mining Districts in Eastern Nevada, USGS Bull 648

Nevada Gold

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.