Mine detail: Hall Molybdenum Mine

Previously called 'Equatorial Copper MineTonopah Copper MineCyprus TonopahChicago GroupTreasure Hill GroupNevada Moly ProjectHall CopperSan Antonio MineAnaconda-Nevada Moly ProspectHall-Hand PropertyLiberty MineHall Moly'

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Location

Lat / long: 38.3211, -117.2969

Resource(M)

Primary: Copper, Molybdenum
Secondary: Silver, Gold
Ore: Molybdenite, Chalcopyrite, Ferrimolybdite, Powellite, Ilsemannite, Chalcocite, Malachite, Azurite, Galena, Pyrrhotite, Sphalerite
Gangue: Pyrite, Chalcopyrite, Limonite, Sericite, Quartz
Orebody form: small flakes, bunches, thin coatings
Discovery year: 1863

Production

Operation type: Surface-Underground
Deposit type: vein, porphyry, pluton-related
Production size: Yes
Development status: Producer
Production years: 1979-1985, 1986-1991
First production started: 1979
Last production ended: 1991

Geology

Host type:Quartzite,Schist
Associated type:Quartz Monzonite,Alkali-Granite (Alaskite)
Structure:sheared contact zone
Alteration processes:Alteration types affecting host rocks are sericitization, kaolinization, silicification. Orebody is oxidized to about 150 feet in depth.

References

MRDSM231757
DEP10310364
Reference{Deposit:: Kral, V.E., 1951, Mineral Resources of Nye Co.: NBMG Bull. 50, Vol. 45, No. 3, p. 159-160}{Deposit:: Mitchell, W.D., 1945, Oxidation in a Molybdenite Deposit: Econ. Geol., vol. 40, no. 2, p. 99-114.}{Deposit:: Kleinhampl, F.J. and Ziony, J.I., 1984, Geology and Mineral Deposits of Northern Nye Co.: NBMG Bulletin 99B.}{Deposit:: Anderson, C.A. and Cox, M.W., 1943, Geology of the Hall Molybdenum Property, Nye Co., NV: USGS OFR. 11 pp.}{Deposit:: Reno Evening Gazette, Dec. 28, 1979.}{Deposit:: Mining Record, Sept 5, 1979.}{Deposit:: NBMG Map 84, 1983, Active Mines and Oil Fields}{Deposit:: Division of Mine Inspection, 1983, Directory of Nevada Mine Operations Active During Calendar Year 1983.}{Deposit:: Handout for Nevada Mining Association tour, Sept 23, 1983.}{Deposit:: Carten, R.B., White, W.H., and Stein, H.J., 1995, High-grade granite-related Mo systems; classification and origin, in Kirkham, R.V., Sinclair, W.D., Thorpe, R.I., and Duke, J.M., eds., Mineral deposit modeling: Geological Association of Canada Special Paper 40, p. 521-554.}{Deposit:: Shaver, S.A., 1986, Elemental dispersion associated with alteration and mineralization at the Hall (Nevada Moly) quartz-monzonite type porphyry molybdenum deposit, with a section on comparison of dispersion patterns with those from Climax-type deposits: Journal of Geochemical Exploration, v. 25, p. 81-98.}{Deposit:: Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Database of significant deposits of gold, silver, copper, lead, and zinc in the United States; Part A, Database description and analysis; part B, Digital database: U.S. Geological Survey Open-File Report 98-206, 33 p., one 3.5 inch diskette.}{Deposit:: NBMG MI-1999-MI-2003.}{Deposit:: Felix E. Mutschler, Steve Ludington, and Arthur A. Bookstrom, 1999, Giant Porphyry-Related Metal Camps of the World-A Database; USGS Open-File Report 99-556.}{Deposit:: SCHILLING, THE NEVADA MINERAL INDUSTRY, NBMG, 1980, P. 37}{Deposit:: STATE OF NEVADA. DIRECTORY OF MINE OPERATIONS ACTIVE DURING CALENDAR YEAR 1982, COMPILED BY DIVISION OF MINE INSPECTION, 1983, 60P.}{Deposit:: ATLANTIC RICHFIELD CO.-ANACONDA MINERALS CO. MERGER. ANACONDA COMPANY. HALL PROPERTY. AN ANACONDA COMPANY MEMORANDUM. 1979, P. 1-3.}{Deposit:: BUREAU OF LAND MANAGEMENT. DRAFT ENVIRONMENTAL IMPACT STATEMENT ANACONDA NEVADA MOLY PROJECT. U. S. BLM, 1979, 148 P.}{Deposit:: SPANISH BELT MINING DISTRICT, NYE COUNTY, NEVADA. PH.D. DISS., STANFORD UNIV., STANFORD, CA, 1972, 258 PP.}{Deposit:: BUREAU OF MINES HALL MOLYBDENUM PROPERTY. U. S. BUMINES WAR MINERAL REPORT 196, 1943, P. 1-13.}{Deposit:: ENGINEERING & MINING JOURNAL. E & MJ AT PRESSTIME. ANACONDA PLANS NEVAD* LARGEST MINING INVESTMENT IN 50 YEARS; ENG. AND MINING JOUR., FEBRUARY 1980, PP. 9-10.}{Deposit:: ENGINEERING & MINING JOURNAL. E & MJ THIS MONTH IN MINING, ANACOND* NEVADA MOLY PROJECT TO GO ON STREAM IN FALL OF 1981. ENG. AND MINING JOUR., MARCH 1980, P. 39 & P. 43.}{Deposit:: U.S. GEOL. SURV. PROF. PAPER 216, 1949, 55 PP.}{Deposit:: ENVIRONMENTAL RESEARCH AND TECHNOLOGY. GEOLOGY AND GROUND WATER TECHNICAL REPORT. PREPARED FOR ANACONDA COPPER COMPANY BY ENVIRONMENTAL RESEARCH AND TECHNOLOGY, INC., FORT COLLINS, COLORADO, 1980.}{Deposit:: ERVINE, WARREN BASIL. THE GEOLOGY AND MINERAL ZONING OF THE SPANISH BELT MINING DISTRICT, NYE COUNTY, NEVADA. DISS. ABSTR. INT., 1973, V. 34, NO. 3, P. 1150B-1151B}{Deposit:: FERGUSON, H.G. AND S. W. MULLER STRUCTURAL GEOLOGY OF THE HAWTHORNE AND TONOPAH QUADRANGLES, NEVADA. U. S. GEOL. SURVEY PROF. PAPER 216, 1949, 55 PGS.}{Deposit:: INTERMOUNTAIN PAYDIRT (BISBEE, AZ). ANACONDA TO GAMBLE, PLANS TO RESTART TONOPAH MOLY OPERATION. NO. 45, JUNE 1983, P. 16A.}{Deposit:: HORTON, F.W. MOLYBDENUM; ITS ORES AND THEIR CONCENTRATION. U. S. BUMINES BULL. III, 1916, P 1-132.}{Deposit:: INVESTIGATIONS OF MOLYBDENUM DEPOSITS IN THE CONTERMINOUS UNITED STATES, 1942-1960. UNITED STATES GEOLOGICAL SURVEY BULLETIN 1182-E, 1965, PP. E73-E78.}{Deposit:: KIRKEMO, H., C. A. ANDERSON, AND S. C. CREASEY. INVESTIGATIONS OF MOLYBDENUM DEPOSITS IN THE CONTERMINOUS UNITED STATES, 1942-60. U. S. GEOLOGICAL SURVEY BULL. 1182-E, 1965, P. E73-E78.}{Deposit:: GEOLOGIC MAP OF NORTHERN NYE COUNTY, NEVADA. U.S. GEOL. SURV. OPEN-FILE MAP, 1967, SCALE 1:200,000.}{Deposit:: LOWE, NATHAN T. YERRINGTON COPPER MINE LYON COUNTY, NEVADA. MAS DEPOSIT SUMMARY REPORT, U.S. BUMINES, 1978, PP. 29.}{Deposit:: LOWE, NATHAN T. AND WILLIAM L. RICE. NEW RUTH AND OTHER COPPER RESOURCES ROBINSON MINING DISTRICT WHITE PINE COUNTY, NEVADA. MAS DEPOSIT SUMMARY REPORT, U.S. BUMINES, 1979, PP. 61.}{Deposit:: IC 7784, 1957, PP. 1-77.}{Deposit:: LOWE, NATHAN T. AND WILLIAM L. RICE. VICTORIA COPPER MINE ELKO COUNTY, NEVADA. MAS DEPOSIT SUMMARY REPORT, U. S. BUMINES, 1978, PP. 42.}{Deposit:: MC INNIS, WILMER. MOLYBDENUM A MATERIALS SURVEY. U. S. BUMINES INF. CIRC. 7784, P. 1-77.}{Deposit:: NEVADA MINING ASSOCIATION (RENO). ANACOND* MOLY PROPERTY GETS ANOTHER EVALUATION. NV MIN. ASSOC. BULL., V.}{Deposit:: MERWIN, R.W. FIELD TRIP TO NORTHEASTERN NEVADA, MARCH 15-21 MINERAL DEPOSIT INVESTIGATIONS. U. S. BUMINES INTRA-OFFICE MEMORANDUM. APRIL 16, 1970, 3 PGS.}{Deposit:: NEVADA MINING ASSOCIATION (RENO). U.V. INDUSTRIES, COLBY MINES DRILL FOR MOLY MINERALIZATION. NV MIN. ASSOC. BULL., V. 2, NO. 10, Oct. 1978, PP. 12-13.}{Deposit:: NEVADA MINING ASSOCIATION. FTC MOVE HUGE NEVADA*OL*MINE CLOSER TO REALITY. NEV. MINING ASSOC. BULL. VOL. 3, NO. 7, JULY 1979, P 3-4.}{Deposit:: SHAVER, S. A. ELEMENTAL DISPERSION AT THE HALL (NEVADA MOLY) PORPHYRY MOLYBDENUM DEPOSIT, NYE COUNTY, NEVADA MINING ASSOCIATION. ANACOND* MOLY PROPERTY GETS ANOTHER EVALUATION. NEV. MINING ASSOC. BULL. VOL. 2, NO. 6, JULY 1978, P 11.}{Deposit:: MINERALIZATION. ABSTR. IN EXPLORATION FOR ORE DEPOSITS OF THE NORTH AMERICAN CORDILLERA. SYMP. OF ASSOC. EXPL. GEOCHEM., RENO, NV, MAR. 25-28, 1984, P. 28.}{Deposit:: REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933. FORM S-14, ATLANTIC RICHFIELD COMPANY MERGER WITH THE ANACONDA COMPANY. SEPT. 1976, P 82-83.}{Deposit:: SCHILLING, J. H. AN INVENTORY OF MOLYBDENUM OCCURANCES IN NEVADA. NEV. BUREAU OF MINES AND GEOL. REPT. 2, 1962, P. 35.}{Deposit:: STRAMM ENGINEERS, INC. CAPITAL AND OPERATING COST ESTIMATING SYSTEM HANDBOOK, U.S. BUMINES CONTRACT NO. J02550261}{Deposit:: WORLD MINING - UNITED STATES: NEVADA; NEVADA MAY BE THE NEXT BIG MOLYBDENUM PRODUCER. V.34, NO.12, 1981, P.77.*}{Deposit:: THE WALLACE MINER. DEVELOPMENT OF BIG MOLY MINE IN NEVADA NEARS REALITY. THE WALLACE MINER. VOL. 73, NO. 25, JULY 12, 1979, P. 1.}{Deposit:: WORLD MINING - UNITED STATES: NEVADA; DUVAL DISCOVERS SILVER AND GOLD NEAR BATTLE MOUNTAIN. V. 35, NO. 1, 1982, P. 35.}{Deposit:: WIMLER, NORMAN L. HALL MOLYBDENUM PROPERTY NYE COUNTY, NEVADA. WAR MINERALS MEMORANDUM. U. S. BUMINES, 1942, 11 PGS.}{Deposit:: WRIGHT, W.A. MOLYBDENITE MINERALIZATION AT THE HALL PROPERTY, NYE COUNTY, NEVADA. GEOL. SOC. AMER., ABSTRA., VOL. 8, NO. 6, 1976, P. 1176-1177.}{Deposit:: WOODCOCK, J. R. MOLYBDENUM - A GUIDE TO NORTH AMERICA RESOURCES AND ONGOING PLANS FOR DEVELOPMENT. ENG. AND MINING JOURN. VOL. 180, NO. 8, AUG. 1979, P. 86-89.}{Deposit:: NEV. BUREAU OF MINES AND GEOL. SPECIAL PUBLICATION 10, 1990, P. 21.}{Deposit:: RANDOL MINING DIRECTORY, 1994/95, U.S. MINES AND MINING COMPANIES, P355.}{Deposit:: RANDOL MINING DIRECTORY, 1996/97, U.S. MINES AND MINING COMPANIES, P275.}{Reserve-Resource:: VALENTI, P. B., C. I. WILMOT, AND R. A. HEIG. ANACONDA NEVADA MOLYBDENUM PROJECT. SOC. MIN. ENG. AIME. PREPRINT 83-141, 1983, 7 PP.}{Reserve-Resource:: KEITH LON* NAT. ASSESSMENT, 1995 DEPOSIT DATA BASE, #242, PP. 70-72.}
ReporterWong, George (Roberts, Ralph), La Pointe, D.D. (Tingley, J.V.), LaPointe, D.D., Schruben, Paul G., Western Field Operations Center (WFOC), Spear, James M., Buckingham, David A.