Nevada · Nye County
Producer

Round Mountain Gold Mine

Nye County, Nevada, United States
GoldSilverArsenicAntimonyThalliumMercuryMolybdenumFluorine-FluoriteManganeseTungsten
⌖ Show on mapUSGS source ↗
Description

John Stebbins And Frank Dixon

Commodities
PrimaryGold, Silver
TertiaryArsenic, Antimony, Thallium, Mercury, Molybdenum, Fluorine-Fluorite, Manganese, Tungsten
Commodity typeB
Deposit
Model104: Hot-spring Au-Ag
Deposit sizeM
WorkingsSurface/Underground
Orebody formTABULAR, MUSHROOM
Ore controlRing Fracture Zone Associated With The Unmapped Buried Caldera. Au Deposition Is Controlled By High-Angle Fractures, Particularly The Nw-Trending Sets. Fracures Were Reactivated By Strike-Slip Faulting (Nw).
Materials
Ore mineralsElectrum
GangueAlunite, Fluorite, Hematite, Illite, Jarosite, Kaolinite, Limonite, Montmorillonite, Pyrite, Quartz, Realgar, Sericite
Geology
Host rockRhyolite · Rhyolitic Ash-Flow Tuffs
Associated rockRhyolite · Shoshone Granite Pluton;;Metasedimentary Rocks
StructureNw Lineament Seen As Disruption In N-S Trends Of Toquima And Toiyabe Ranges, Nw-Striking Faults And Joints; Wnw-Trending Paleotopographic High, May Represent Margin Of Buried Caldera Located Sw Of Round Mountain
AlterationSee Comments
Economic & production
Development statusProducer
Production years1906-1942; 1977-PRESENT (4/93)
First production1906
Discovery year1906
Identification
Deposit ID10069298
MRDS IDW002891
Alternate namesSunnyside Mine, Sphinx Glory Hole, Great Western Tunnel, Rattlesnake, Keane Vein, Los Gazabo Vein
RegionNA
Data scoreA
Coordinates38.70382, -117.07814
References
RANSOME, F.L., 1909, ROUND MOUNTAIN: U.S. GEOLOGICAL SURVEY BULLETIN 380, P. 44-47.KLEINHAMPL, F.J., AND ZIONY, J.I.,19854, MINERAL RESOURCES OF NORTHERN NYE CO.: NEVADA BUREAU OF MINES AND GEOLOGY, BULLETIN 99B.FERGUSON, H.G., 1921, ROUND MOUNTAIN DISTRICT: U.S. GEOLOGICAL SURVEY BULLETIN 725-I, P. 383-406.BERGER, B.R., TINGLEY, J.V., FILIPEK, L.H., AND NEIGHBOR, J., PROCESSES CONTROLLING TRACE-ELEMENT PATTERNS IN HOT SPRINGS-RELATED GOLD-SILVER DEPOSITS IN LATE OLIGOCENE VOLCANIC ROCKS, ROUND MOUNTAIN, NEVADA: UNPUBLISHED REPORT, NEVADA BUREAU OF MINES AND GEOLOGY FILES.SKILLINGS, D.N., JR., SKILLINGS MINING REVIEW, MARCH 3, 1979, P. 8-17.SILBERMAN, M.L., SHAWE, D.R., KOSKI, R.A., AND GODDARD, B.B., 1975, K-AR AGES OF MINERALIZATION AT ROUND MOUNTAIN AND MANHATTAN, NYE COUNTY, NEVADA: ISOCHRON WEST, V. NO. 13, P. 1-2.WALL STREET JOURNAL, 1982, JANUARY 5, 1982, "LOUISIANA LAND BOOSTS ESTIMATES OF GOLD RESERVES."NEVADA BUREAU OF MINES AND GEOLOGY MI-1987.GSN PRECIOUS METALS SYMPOSIUM, 1987, FIELDTRIP GUIDEBOOK, P. 130; TECHNICAL VOLUME, P. 375.MINING JOURNAL, MONTAGU MINING FINANCE, MINING DATABASE, 8/10/91.TINGLEY, J.V., AND BERGER, B.R., 1985, LODE-GOLD DEPOSITS OF ROUND MOUNTAIN, NEVADA: NEVADA BUREAU OF MINES AND GEOLOGY BULLETIN 100, 62 P.CAVENDER, W.S., AND PURDY, C.P., 1985, THE MAKING OF THE ROUND MOUNTAIN MINE, IN HOLLISTER, V.F., ED., DISCOVERIES OF EPITHERMAL PRECIOUS METAL DEPOSITS, SOCIETY OF MINING ENGINEERS OF AIME, NEW YORK, P. 101-104.MILLS, B.A., 1985, GEOLOGY OF THE ROUND MOUNTAIN GOLD DEPOSIT: NYE COUNTY, NEVADA, IN HOLLISTER, V.F., ED., DISCOVERIES OF EPITHERMAL PRECIOUS METAL DEPOSITS, SOCIETY OF MINING ENGINEERS OF AIME, NEW YORK, P. 104-114.SANDER, M., AND EINAUDI, M., 1987, THE ROUND MOUNTAIN GOLD-SILVER MINE, NYE COUNTY, NEVADA, IN JOHNSON, J., ED., BULK MINEABLE PRECIOUS METAL DEPOSITS-GUIDEBOOK FOR FIELD TRIPS, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 130-135.ARGALL, G.O., 1985, HEAP LEACHING SMOKY VALLEY GOLD, ENGINEERING AND MINING JOURNAL, V. 186, NO. 12, P. 18-23.SANDER, M., 1988, GEOLOGIC SETTING AND THE RELATION OF EPITHERMAL GOLD-SILVER MINERALIZATION TO WALL ROCK ALTERATION AT THE ROUND MOUNTAIN MINE, NYE COUNTY, NEVADA, IN SCHAFER, R., ET AL, EDS., BULK MINEABLE PRECIOUS METAL DEPOSITS OF THE WESTERN UNITED STATES, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 375-416.FERGUSON, H.G., AND CATHCART, S.H., 1954, GEOLOGY OF THE ROUND MOUNTAIN QUAD., NEVADA: U.S. GEOLOGICAL SURVEY GEOLOGICAL QUADRANGLE MAP GQ-40.KOSCHMANN, A.H., AND BERGENDAHL, M.H., 1968, PRINCIPAL GOLD PRODUCING DISTRICTS OF THE UNITED STATES: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 610, P. 193-194.ECHO BAY MINES LTD., 1988, ANNUAL REPORT FORM 10-K FOR 1987.NBMG, 1994, MI-1993ECHO BAY MINES 1993 ANNUAL REPORTNEVADA DEPT. OF MINERALS, 19941909 GEOLMAP RANSOME, USGS BULL. 3801954 GEOLMAP FERGUSON AND CATHCART, USGS GQ-401921 GEOLMAP FERGUSON, USGS BULL. 725-1ALBINO, GEORGE, 1993,WRITTEN COMMUNICATIONO S. MARCUS, APRIL 30, 1993BRUCE VEEK, 1993, WRITTEN COMMUNICATION TO S. MARCUS, REVISING THIS MRDS RECORD. VEEK IS SENIOR GEOLOGIST AT ROUND MOUNTAIN (4/93).1923 COMPILE LINCOLN: NEVADA NEWSLETTER PUBLISHING COMPANY1988-1990 ANNUAL PRODUCTION: MINING JOURNAL/MONTAGU MINING FINANCE, MINING DATABASE, 8/10/91.1910-1920 CUMULATIVE PRODUCTION: FERGUSON, H.G., 1921, ROUND MOUNTAIN DISTRICT: U.S. GEOLOGICAL SURVEY BULLETIN 725-I, P. 383-406.1906-1969 CUMULATIVE PRODUCTION: TINGLEY, J.V., AND BERGER, B.R., 1985, LODE GOLD DEPOSITS OF ROUND MOUNTAIN, NEVADA: NBMG BULLETIN 100, 62 P.1977-1981 CUMULATIVE PRODUCTION: MILLS, B.A., 1985, GEOLOGY OF THE ROUND MOUNTAIN GOLD DEPOSIT: NYE COUNTY, NEVADA, IN HOLLISTER, V.F., ED., DISCOVERIES OF EPITHERMAL PRECIOUS METAL DEPOSITS, SOCIETY OF MINING ENGINEERS OF AIME, NEW YORK, P. 104-114.1982-1987 CUMULATIVE PRODUCTION: ECHO BAY MINES LTD., 1988, ANNUAL REPORT FORM 10-K FOR 1987.1988-1990 CUMULATIVE PRODUCTION: MINING JOURNAL/MONTAGU MINING FINANCE, MINING DATABASE, 8/10/91. NBMG MI-1993NEVADA BUREAU OF MINES AND GEOLOGY MI-1987; SKILLINGS MINING REVIEW, MARCH 3, 1979; WALL STREET JOURNAL, JANUARY 5, 1982. NBMG MI-1993