Ann Mason Deposit

The Ann Mason Deposit is a copper mine located in Lyon county, Nevada at an elevation of 5,577 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: Ann Mason Deposit

Commodity

Primary: Copper
Secondary: Molybdenum

Location

State: Nevada
County: Lyon
District: Yerington

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

Type: Located Claim
Type: Patented

Workings

Type: Underground

Ownership

Owner Name: Tibbles Construction Co. (Don Tibbles)
Percent: 100.0
Home Office: Nevada
Info Year: 1985

Owner Name: Arimetco International, Inc.
Percent: 100.0
Home Office: Arizona
Info Year: 1996
Years: 1996 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Surface
Mining Method: Caving Methods - Other Caving Methods
Milling Method: Flotation
Years of Production:
Organization:
Significant: N
Deposit Size: L

Physiography

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

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Unknown: Hornblende
Unknown: Feldspar
Unknown: Chalcopyrite
Unknown: Bornite
Unknown: Biotite
Unknown: Ilmenite
Unknown: Magnetite
Unknown: Pyrite
Unknown: Quartz
Unknown: Sphene
Unknown: Zircon
Unknown: Apatite

Comments

Comment (Reserve-Resource): MATRIX 1 COLUMN 2 IS THE ORE PROPOSED FOR MINING GIVING A MINE LIFE OF ABOUT 21 YEARS.

Comment (Reserve-Resource): ARCO - ANACONDA MERGER FILING, SEPTEMBER 1976, P 67,82 HIGH GRADE TONNAGE - 100,000,000 MT @ 0.51 % CU. NOT INCLUDED I 1978 SUPPLY ANALYSIS. SHOULD BE CONSIDERED FOR FUTURE AVAILABILITY STUDIES.

Comment (Reserve-Resource): LOWE, N.T., PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN NEVADA, IC 9035, 1985.

Comment (Location): DEPOSITS ALSO LOCATED IN SECTIONS 13, 15, AND 24, T13N, R24E. * DEPOSIT IS ABOUT 3 MILES WEST OF THE OLD YERINGTON AND IS BURIED UNDER 300 TO 1500 FEET OF TERTIARY VOLCANICS. *

Comment (Geology): NOTE---CHALCOPYRITE CONCENTRATION (M-AMO) IS AN ORE BODY AVERAGE AND INCLUDES REPORTED BORNITE. * MINERALS ARE NOT REPORTED IN ORDER OF ABUNDANCE. *

References

Reference (Deposit): VOLUME 15, NO. 5, 1983, P. 277.

Reference (Deposit): PROFFETT, J.M. JR. AND J.H. DILLES. GEOLOGIC MAP OF THE

Reference (Deposit): ROCKY MOUNTAIN SECTION. THE GEOLOGICAL SOCIETY OF AMERICA

Reference (Deposit): 1980.

Reference (Deposit): GEOLOGICAL SOCIETY OF AMERICA. THIRTY SIXTH ANNUAL MEETING-

Reference (Deposit): MINES WESTERN FIELD OPERATION CENTER. MARGRET PROJECT.

Reference (Deposit): AND HEATING AND COOLING DEGREE DAYS 1941-70, 1973, 10 P.

Reference (Deposit): ADMINISTRATION. MONTHLY NORMALS OF TEMPERATURE, PRECIP.,

Reference (Deposit): U.S. DEPARTMENT OF COMMERCE NATIONAL OCEANIC AND ATMOSPHERIC

Reference (Deposit): REGISTRATION FORM). 1976, P. 60,67.

Reference (Deposit): SECURITY AND EXCHANGE COMMISSION. FORM S-14 (STOCK

Reference (Deposit): GEOLOGY MAP NO. 77. 1984.

Reference (Deposit): YERRINGTON DISTRICT NEVADA. NEVADA BUREAU OF MINES AND

Reference (Deposit): UNIV. OF NV, RENO, MAP 77, 1984.

Reference (Deposit): YERINGTON DISTRICT, NEVADA. NV BUREAU OF MINES AND GEOL.,

Reference (Deposit): BULL. 75, 1969, 45 PP.

Reference (Deposit): PROFFETT, J. M. AND J. H. DILLES. GEOLOGIC MAP OF THE

Reference (Deposit): AND ORMSBY COUNTIES, NEVADA. NV BUREAU OF MINES AND GEOL.

Reference (Deposit): MARCH 25-28, 1984, PP. 31-39.

Reference (Deposit): MOORE, J. G. GEOLOGY AND MINERAL DEPOSITS OF LYON, DOUGLAS,

Reference (Deposit): J. L. JOHNSON. SYMP. OF ASSOC. EXPL. GEOCHEM., RENO, NV,

Reference (Deposit): NORTH AMERICAN CORDILLERA. FIELD TRIP GUIDEBOOK, ED. BY

Reference (Deposit): DEPOSITS. PAPER IN EXPLORATION FOR ORE DEPOSITS OF THE

Reference (Deposit): PP. 145-148.

Reference (Deposit): EINAUDI, M. YERINGTON SKARNS; FIELD TRIP 10, SKARN

Reference (Deposit): ED. BY S. R. TITLEY. UNIV. AZ PRESS, TUCSON, AZ, 1982,

Reference (Deposit): PORPHYRY COPPER DEPOSITS, SOUTHWESTERN NORTH AMERICA,

Reference (Deposit): COPPER PLUTONS. PAPER IN ADVANCES IN GEOLOGY OF THE

Reference (Deposit): EINAUDI, M. DESCRIPTION OF SKARNS ASSOCIATED WITH PORPHYRY

Reference (Reserve-Resource): P.11.

Reference (Reserve-Resource): ARIMETCO INTERNATIONAL INCORPORATED. 1995 ANNUAL REPORT.

Reference (Reserve-Resource): MUST DIVEST CU RESERVES. V. 32. NO. 5, 1979, P. 65.

Reference (Reserve-Resource): WORLD MINING (SAN FRANCISCO) ANACONDA - ATLANTIC RICHFIELD

Reference (Deposit): GALE, G.D. (LATE) METALLURGICAL ENGINEER, U.S. BUREAU OF

Reference (Deposit): CA. 1983. 389 PP.

Reference (Deposit): DEPOSIT, WESTERN NEVADA. PHD THESIS STANFORD UNIVERSITY

Reference (Deposit): YERINGTON BATHOLITH AND THE ANN-MASON PORPHRY COPPER

Reference (Deposit): DILLES, J.H., THE PETROLOGY AND GEOCHEMISTRY OF THE

Reference (Deposit): MINERALS DIVISION. CONFIDENTIAL COMPANY INFO. 1979.

Reference (Deposit): BARBER, G.A. VICE PRESDENT-EXPLORATION AND GEOLOGY, ANACONDA

Reference (Deposit): NO. 3, 1976, P. 82.

Reference (Deposit): BE A MAJOR FUTURE PORPHYRY COPPER PRODUCER. V. 29,

Reference (Deposit): MINING - UNITED STATES: NEVADA; YERINGTON DISTRICT WILL

Reference (Deposit): WORLD MINING (SAN FRANCISCO) WHAT'S GOING ON IN WORLD

Reference (Deposit): GEOL. BULL. 49, 1950, P. 89.

Reference (Deposit): STOREY AND LYON COUNTIES, NEVADA. NV BUREAU OF MINES AND

Reference (Deposit): STODDARD, C., AND J. A. CARPENTER. MINERAL RESOURCES OF

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.