Hasbrouck Mountain

The Hasbrouck Mountain is a silver mine located in Esmeralda county, Nevada at an elevation of 5,699 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: Hasbrouck Mountain
Secondary: Tonopah Hasbrouck Mine
Secondary: Kernick Vein
Secondary: McKane Vein
Secondary: Ore Car Adit

Commodity

Primary: Silver
Secondary: Gold
Tertiary: Arsenic
Tertiary: Mercury
Tertiary: Antimony
Tertiary: Tungsten

Location

State: Nevada
County: Esmeralda
District: Divide District; Gold Mountain District

Land Status

Land ownership: Private
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

Type: Underground

Ownership

Owner Name: Franco-Nevada

Owner Name: Tonopah Hasbrouck Mining Co. ; Franco-Nevada
Years: 1923 -

Production

Year: 1991
Time Period: 1902-1991
Material type: ORE
Description: Cp_Grade: ^Avg. 12 Opt Ag, Trace Au

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1902
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains

Mineral Deposit Model

Model Name: Hot-spring Au-Ag

Orebody

Form: TABULAR

Structure

Type: R
Description: Walker Lane Structural Zone. Basin And Range Extensional Faulting. Possibly On Margin Of Buried Caldera.

Alterations

Alteration Type: L
Alteration Text: Silicification And Potassium Metasomatism. Funnel Shaped Alteration Envelopes Surround The Major Hydrothermal Conduits. The Alteration Envelopes Progress Inward From Quartz + Illite + Montmorillonite To Quartz + Adularia +Albite + Illite To Quartz + Adularia + Illite To Quartz + Adulari Cores.

Rocks

Name: Ash-Flow Tuff
Role: Host
Age Type: Associated Rock
Age in Years: 17.000000+-
Age Young: Miocene

Name: Rhyolite
Role: Associated
Age Type: Host Rock Unit
Age Young: Miocene

Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age in Years: 17.000000+-
Age Young: Miocene

Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene

Analytical Data

Analytical Data: THE SILICEOUS SINTER ABOVE THE MINERALIZED ZONES IS REPORTED TO ASSAY 0.06 OPT AU, 1.26 OPT AG, 2000 PPM SB.

Materials

Ore: Cerargyrite
Ore: Fluorite
Ore: Calcite
Ore: Illite
Ore: Electrum
Ore: Albite
Ore: Montmorillonite
Ore: Quartz
Ore: Stibnite
Ore: Argentite
Ore: Pyrite
Ore: Pyrargyrite
Ore: Acanthite

Comments

Comment (Workings): ADIT WHICH CUTS VEIN AT 500 FT. FROM PORTAL AND CONTINUED 700 FT. BEYOND, WHERE IT INTERSECTED DISSEMINATED MINERALIZATION IN RHYOLITE TUFF; 230 FT. SHAFT WITH CROSSCUT AT 200 FT. LEVEL, AND CROSSCUTS S AND NE FROM THE BOTTOM; 200 FT. SHAFT SUNK ABOUT 1904, DEEPENED TO 400 FT. IN 1919. THE DISSEMINATED DEPOSIT TYPE REMAINS UNDEVELOPED (1/92).

Comment (Deposit): TWO PERIODS OF PRECIOUS METAL DEPOSITION HAVE RESULTED IN TWO DIFFERENT BUT RELATED DEPOSIT TYPES. A HORIZONTAL, TABULAR, AND POTENTIALLY BULK MINEABLE AU-AG DEPOSIT TYPE WAS DISCOVERED BY CORDEX IN THE 1970'S. SUPERIMPOSED ON THIS DEPOSIT TYPE ARE SLIGHTLY YOUNGER HYDROTHERMAL BRECCIAS WHICH WERE MINED IN THE EARLY 1900'S. THESE BRECCIAS ARE NARROW, STEEPLY DIPPING ZONES AS SHOWN BY THE DATA GIVEN ABOVE FOR THE KERNICK VEIN.

Comment (Location): UTM'S TO HISTORIC TONOPAH HASBROUCK MINE.

Comment (Development): MINOR AG WAS PRODUCED FROM THE HYDROTHERMAL BRECCIAS AT THE TONOPAH HASBROUCK MINE IN THE EARLY 1900'S. DISSEMINATED AU-AG MINERALIZATION ON HASBROUCK MOUNTAIN WAS DISCOVERED IN THE MIDDLE 1970'S BY CORDEX EXPLORATION CO. FRANCO-NEVADA ACQUIRED THE PROPERTY IN THE MID-1980'S, DRILLED, AND COMPLETED FEASIBILITY STUDIES.

References

Reference (Deposit): KNOPF, A., 1921, THE DIVIDE SILVER DISTRICT, NEVADA, IN RANSOME, F.L., GALE, H.S., AND BURCHARD, E.F., EDS., CONTRIBUTIONS TO ECONOMIC GEOLOGY: USGS BULL. 715, P. 169-170.

Reference (Deposit): GRANEY, J.R., 1987, HASBROUCK MOUNTAIN, NEVADA - PRECIOUS METAL MINERALIZATION IN A FOSSIL HOT SPRINGS ENVIRONMENT, IN BULK MINEABLE PRECIOUS METAL DEPOSITS OF THE WESTERN UNITED STATES - GUIDEBOOK FOR FIELD TRIPS, THE GEOLOGICAL SOCIETY OF NEVADA, RENO.

Reference (Deposit): GRANEY, J.R., 1985, GEOLOGY, ALTERATION AND MINERALIZATION AT HASBROUCK MOUNTAIN, DIVIDE DISTRICT, ESMERALDA COUNTY, NEVADA: UNPUBLISHED MS THESIS, UNIVERSITY OF NEVADA, RENO, 106 P.

Reference (Deposit): USGS PROFESSIONAL PAPER 1646

Reference (Deposit): LINCOLN, F.C., 1923

Reference (Production): KNOPF, 1921, P. 169.

Reference (Reserve-Resource): NBMG MI-1993

Reference (Deposit): NBMG REPORT 33, 1979, PAPERS ON MINERAL DEPOSITS OF WESTERN NORTH AMERICA, P. 124.

Reference (Deposit): BONHAM AND GARSIDE, 1979, GEOLOGY OF THE TONOPAH, LONE MOUNTAIN, KLONDIKE, AND NORTHERN MUD LAKE QUADRANGLES, NEVADA, NBMG BULLETIN 92, P. 121-128.

Reference (Deposit): GARSIDE, L.J., AND TINGLEY, J.V., 1982, FIELD EXAMINATION, NBMG, MARCH 26, 1982.

Reference (Deposit): THE NORTHERN MINER, 1980.

Reference (Deposit): TONOPAH TIMES BONANZA, OCTOBER 25, 1974, "CORDEX EXPLORATION CO. PROBES DIVIDE DISTRICT."

Reference (Deposit): WEED, W.H., ED, 1920, THE MINES HANDBOOK, V. XIV, P. 1165.

Reference (Deposit): SMITH, TINGLEY, BENTZ, ET AL, 1983, A MINERAL INVENTORY OF THE ESMERALDA-STATELINE RESOURCE AREA, LAS VEGAS DISTRICT, NEVADA, NBMG OPEN FILE REPORT 83-11.

Reference (Deposit): BONHAM, 1989, BULK-MINEABLE PRECIOUS-METAL DEPOSITS AND PROSPECTS IN NEVADA, NBMG MAP 91.

Reference (Deposit): NBMG, 1988, THE NEVADA MINERAL INDUSTRY - 1987, NBMG SPECIAL PUBLICATION MI-1987.

Reference (Deposit): NBMG MINING DISTRICT FILE 87, NUMEROUS PRESS CLIPPINGS.

Reference (Deposit): NBMG, 1994, MI-1993

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.