Marcus Mine

The Marcus Mine is a tungsten mine located in Humboldt county, Nevada at an elevation of 7,251 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: Marcus Mine
Secondary: Markus Mine
Secondary: Harden's Lease

Commodity

Primary: Tungsten

Location

State: Nevada
County: Humboldt
District: Potosi 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.

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Getchell Mine, Inc.

Owner Name: Getchell Mine, Inc.
Years: 1963 -

Production

Year: 1956
Time Period: 1955-1956
Material type: ORE W
Description: Cp_Grade: ^About 0.5 % Wo3

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Contact Metamorphic
Operation Type: Unknown
Year First Production: 1955
Discovery Year: 1955
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: W skarn

Orebody

Form: IRREGULAR, ALONG IGNEOUS CONTACT

Structure

Not available

Alterations

Not available

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian

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

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

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cambrian

Analytical Data

Analytical Data: ESTIMATED 1.7% WO3 IN ORE, UP TO 3.34% WO3

Materials

Ore: Scheelite
Gangue: Calcite
Gangue: Epidote
Gangue: Idocrase
Gangue: Quartz
Gangue: Garnet

Comments

Comment (Location): IN NE 1/4 OF SE 1/4 SEC 24

Comment (Geology): MAIN TACTITE BODY 2 TO 10 FT. WIDE AND OVER 75 FT. LONG ALONG A VERY IRREGULAR CONTACT. THERE ARE 4 TACTITE BODIES

Comment (Deposit): THE DEPOSIT IS ON THE WEST SIDE OF THE SOUTH PART OF THE GRANODIORITE STOCK NEAR THE CREST OF THE RANGE. THE CONTA-CT ZONE BETWEEN THE STOCK AND THE SEDIMENTARY ROCKS IS HIGHLY -IRREGULAR. SLIDE ROCK COVERS MUCH OF THE SURFACE IN THE VICINI-TY OF THE MINE AND EXPOSURES ARE POOR. SMALL AND DISCONTINUOUS- TACTITE BODIES OCCUR WHERE THE THIN LIMESTONE BEDS, IN ARGILL-ITE AND HORNFELS, ARE TRUNCATED BY THE GRANODIORITE STOCK OR B-Y IRREGULAR APOPHYSES. THE TACTITE BODIES MINED WERE FROM A FE-W FEET TO 25 FEET WIDE AND PROBABLY AVERAGED ABOUT 20 FT. THE -TUNGSTEN CONTENT RANGED FROM 0.1 % WO3 TO 3.34 % BUT PROBABLY -AVERAGED ABOUT 0.5 % WO3. WORKINGS EXTEND ALONG 1200 FT STRIKE

Comment (Workings): 2 SHORT ADITS, TRENCHES/OPENCUTS

Comment (Development): 300-350 TONS OF 1.7% WO3 ORE AND 1000-1300 TONS OF 0.5% WO3 ORE ESTIMATED PRESENT IN 1946, AS WELL AS 6000 TO 12,000 TONS OF 0.3% WO3 ORE POSSIBLE. IN 1943, THE PROPERTY WAS OWNED BY JOHN ETCHERT, JR., AND W. M. PETTIT, AND LEASED TO JOHN H. HARDEN OF WINNEMUC-CA. WORKINGS CONSISTED OF NUMEROUS TRENCHES, OPEN CUTS AND 2 S-HORT ADITS, BUT ACCESS TO THE PROPERTY WAS DIFFICULT. IN 1955,- THE PROPERTY WAS ACQUIRED BY GETCHELL MINES AND A ROAD WAS CO-NSTRUCTED UP GRANITE CREEK FROM THE GRANITE CREEK MINE, REPLAC-ING THE 2.5 TO 3 MILES OF ROUGH TRAIL. OPEN-PIT MINING IN 1955- AND 1956 YIELDED 21300 TONS OF ORE THAT WERE TRUCKED TO THE G-ETCHELL MILL. 5 UNPATENTED CLAIMS.

Comment (Deposit): THE PROPERTY WAS EXPLORED PRIOR TO 1955, BUT NO MINING WAS DONE UNTIL ROAD HAD BEEN BUILT TO IT FROM THE GRANITE CREEK MINE IN 1955, WHEN OPEN-PIT MINING BEGAN. IT CONSISTS OF FIVE UNPATENTED CLAIMS. WORKINGS INCLUDE 2 SHORT ADITS, TRENCHES, AND OPEN CUTS. 300-350 TONS OF 1.7% WO3 ORE AND 1000 TO 1300 TON S OF 0.5% WO3 ORE WERE ESTIMATED TO BE PRESENT IN 1946, AS WELL AS 6000 TO 12,000 TONS OF 0.3% WO3 OR LESS ORE POSSIBLE ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

References

Reference (Deposit): WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS OF HUMBOLDT COUNTY, NEVADA; NEV. BUREAU OF MINES BULL 59.

Reference (Deposit): HOTZ, P.E. AND WILLDEN, 1964, GEOLOGY AND MINERAL DEPOSITS OF THE OSGOOD/MOUNTAINS QUADRNAGLE HUMBOLDT CO., NEV; U.S.G.S. PROF. PAPER 431.

Reference (Deposit): HOBBS, S.W. AND CLABAUGH, S.E., 1946, TUNGSTEN DEPOSITS OF THE OSGOOD RANGE, HUMBOLDT CO., NEV. UNIV. NEV. BULL. 40, NO. 5; GEOL. & MIN. SER. NO. 44.

Reference (Deposit): STAGER, H. K., IN PREPARATION, NBMG BULLETIN ON TUNGSTEN DEPOSITS OF NEVADA.

Reference (Deposit): NBMG MINING DISTRICT FILE 136, ITEM 20, 1963, USBM UNPUBLISHED DATA

Reference (Production): STAGER, H. K., IN PREPARATION

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.