Mine detail: Hollister gold Deposit

Previously called 'Ivanhoe depositUSX WestUSX EastButte #1Butte #2ClementineVelvetRowenaUSX Mine'

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Location

Lat / long:

41.1149, -116.56177

Resource(M)

Primary:	Gold, Silver, Mercury
Tertiary:	Copper, Zinc, Lead, Antimony
Ore:	Gold, Chalcedony, Kaolinite, Adularia, Alunite, Montmorillonite, Nontronite, Chlorite, Calcite, Pyrite
Gangue:	Quartz
Orebody form:	bedded
Discovery year:	1915

Production

Operation type:	Surface-Underground
Deposit type:	Hot-spring Au-Ag, fault zone
Production size:	Medium
Development status:	Producer
Production years:	1915-1917; 1929-1943; 1990-PRESENT (1/92)
First production started:	1915

Geology

Host rock:	Vinnini Formation
Host type:	Mixed Clastic/Volcanic Rock,Tuff,Andesite,Quartzite,Argillite
Associated type:	Tuff,Andesite
Structure:	The deposit occurs along the northern projection of the Carlin Trend, just south of the Midas Trough.
Alteration processes:	The deposit is affected by silicification, argillization, and propylitization. The ore is generally argillized beneath a barren near surface silica cap. The ore is also locally silicified. Tuffaceous rocks are altered to quartz, chalcedony, kaolinite, adularia, and alunite. The andesite is altered to montmorillonite, nontronite, and chlorite, and is crosscut by fractures which contain silica, pyrite, and adularia.

References

MRDS	W700379
DEP	10310531
Reference	{Deposit:: Mining Magazine, March 1988, p. 166.}{Deposit:: Mining Magazine, January 1989, p. 44.}{Deposit:: Mining database, November 1991, Mining Journal/Montagu Mining Finance.}{Deposit:: ERT, an engineering company, 1988, Proposed Ivanhoe/USX Project Environmental Assessment Report.}{Deposit:: Bonham, 1989, Bulk-mineable Precious-Metal Deposits and Prospects in Nevada, NBMG Map M91.}{Deposit:: NBMG, 1987, The Nevada Mineral Industry - 1986, NMBG Special Publication MI-1986.}{Deposit:: NMBG, 1991, The Nevada Mineral Industry - 1990, NBMG Special Publication MI-1990.}{Deposit:: Hollister, V.F., 1986, unpublished report on the Ivanhoe District.Hollister, V., Hruska,D., Moore, R., 1992, A mine-exposed hot spring deposit and related epithermal gold resources, Economic Geology and the Bulletin of the Society of Economic Geologists, vol. 87,No. 2, Pages 421-424}{Deposit:: Putnam, Borden, 1990, Fall 1990 field trip guidebook; the Carlin and Cortez trends; comparisons and contrasts; Cortez, Gold Acres and Buckhorn vs Carlin, Post and Ivanhoe, Geological Society of Nevada. Special Publication No.12, 1990}{Deposit:: Tingley, J.V., and Bentz, J., 1983, NBMG Open File Report 83-10 (includes field reports for Ivanhoe District).}{Deposit:: Granger, et al., 1957, NBMG Bulletin 54.}{Deposit:: Bartlett, M.W., et al., 1991, Geology of the Hollister Gold Deposit, Ivanhoe District, Elko County, Nevada, in Raines, G.L., et al., eds., Geology and Ore Deposits of the Great Basin, the Geological Society of Nevada, Reno, p. 957-978.}{Deposit:: NBMG,1994, MI-1993.}{Deposit:: Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Significant deposits of gold, silver, copper, lead, and zinc in the United States: U.S. Geological Survey Open-File Report 90-206A, 33 p.; 98-206B. one 3.5 inch diskette.}{Deposit:: Great Basin Gold Ltd.,Press Release: December 12, 2005.}
Reporter	Paidakovich, Matthew E., La Pointe, D.D., Beougher, Delilah J. (Spanski, Gregory T.), Phinisey, J. D. (Marcus, S.), Li, Zhiping (Moyer, Lorre A.), LaPointe, D.D., Schruben, Paul G.