Poker Brown Mine

The Poker Brown Mine is a silver and lead mine located in Pershing county, Nevada at an elevation of 4,400 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: Poker Brown Mine
Secondary: Old Tom Mine
Secondary: NBMG Sample Site 2835

Commodity

Primary: Silver
Primary: Lead
Secondary: Gold

Location

State: Nevada
County: Pershing
District: San Jacinto 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

Not available

Ownership

Owner Name: Thomsen, Mervel
Home Office: Battle Mountain
Years: 1984 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
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: Low-sulfide Au-quartz vein

Orebody

Form: VEIN

Structure

Not available

Alterations

Not available

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Analytical Data

Analytical Data: SAMPLE 2835 CONTAINS 2 % FE, 0.3 % MG, 0.5 % CA, 0.01 % TI, 150 PPM MN, 500 PPM AG, +10000 PPM AS, +2000 PPM B, 200 PPM BA, 20 PPM BI, +500 PPM CD, 50 PPM CU, 30 PPM MO, 5 PPM NI, +20000 PPM PB, 300 PPM SB, 150 PPM SR, 100 PPM V, 10000 PPM ZN, AND 0.25 PPM AU, BY AA ANALYSIS.

Materials

Ore: Gold
Ore: Lead
Ore: Galena
Gangue: Quartz

Comments

Comment (Development): ARGENTIFEROUS GALENA AND LEAD CARBONATES WERE DISCOVERED IN THE DISTRICT IN 1875. SOME DRILLING WITHIN THE PAST 5 YEARS, AND RECENT STAKING IN VICINITY OF THE MINE (1984).

Comment (Deposit): THE MINE IS ON A SERIES OF QUARTZ VEINS AND IRREGULAR MASSES. QUARTZ VEINS ARE LESS THAN 1 INCH TO 6 INCHES WIDE AND OCCUR MAINLY IN SLATE IRREGULAR MASSES OF QUARTZ ARE UP TO 5 FEET WIDE. THE PRINCIPAL VEIN SYSTEM TRENDS N40-60 DEGREES E AND DIPS 80 DEGREES NE, IN PLACES PARALLEL TO THE BEDDING AND IN PLACES PARALLEL TO THE SHEARS OR CLEAVAGE. ANOTHER LESS PROMINENT SYSTEM TRENDS N50-60 DEGREES E AND DIPS 45 DEGREES SE. THE VEINS CONTAIN BUNCHES OF ARGENTIFEROUS GALENA AND CARBONATE OF LEAD. HIGHLY IRREGULAR MASSES OF QUARTZ; BEST-PRODUCING VEINS WERE SMALL. SAMPLE 2835 HAS VISIBLE GALENA AND ARSENOPYRITE IN A CARBONATE-QUARTZ GANLE AND IN WHITE BULL QUARTZ.

Comment (Workings): DEVELOPED BY TRENCHES, PITS, ADITS AND ONE 150-FT SHAFT, DRILLING

Comment (Geology): QUARTZ VEINS ARE LESS THAN 1 INCH TO 6 INCHES WIDE AND OCCUR MAINLY IN THE STATE. IRREGULAR MASSES OF QUARTZ ARE UP TO 5 FEET WIDE. THE PRINCIPAL VEIN SYSTEM TRENDS N40-60 DEGREES E AND DIPS 80 DEGREES NE, IN PLACES PARALLEL TO THE BEDDING AND IN PLACES PARALLEL TO THE SHEARS OR CLEAVAGE. ANOTHER LESS PROMINENT SYSTEM TRENDS N50-60 DEGREES E AND DIPS 45 DEGREES SE. THE VEINS CONTAIN BUNCHES OF ARGENTIFEROUS GALENA AND CARBONATE OF LEAD.

Comment (Deposit): ARGENTIFEROUS GALENA AND LEAD CARBONATES WAS DISCOVERED IN THE DISTRICT IN 1875. SOME SILVER-LEAD ORE WAS SHIPPED IN 1876. THE POKER BROWN MINE IS DEVELOPED BY TRENCHES, PITS, ADITS, AND ONE 150-FT. SHAFT ON A SERIES OF QUARTZ VEINS AND IRREGULAR MASSES OF QUARTZ. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

References

Reference (Deposit): JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OFPERSHING COUNTY, NEVADA; NBMG BULL. 89.

Reference (Deposit): VANDERBURG, 1936, RECONNAISSANCE OF MINING DISTRICTS IN PERSHING COUNTY, NEVADA; USBM 1C 6902

Reference (Deposit): QUADE, JACK, 13 SEP 84, NBMG FIELD EXAMINATION REPORT AND SAMPLE ANALYSIS.

Reference (Deposit): EARL, PHILLIP I., 30 NOV 86, "`POKER' BROWN; IN PURSUIT OF ORE AND CARDS": RENO GAZETTE JOURNAL.

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.