Commodities
PrimaryGold, Silver
Commodity typeM
Deposit
Deposit typeepithermal
Model150: Epithermal vein, Comstock
Deposit sizeS
Orebody formseams and bunches
Ore controlHigh-grade gold mineralization occurs within quartz veins, vein stockworks and breccia zones along northwest-trending structures. Mineralization also commonly follows the margins of intrusive flow domes and dikes. The strongest mineralization in the main resource area occurs where high-angle NW- and N-trending structures intersect a gently-dipping coarse-grained tuff, resulting in stratiform, gently-dipping mineralization within the tuff, marginal to the structures.
Materials
Ore mineralsGold
GangueQuartz
Geology
Host rockAsh-Flow Tuff,Rhyolite,Dacite · Tonopah Formation
Associated rockArgillite,Greenstone,Chert
StructureThe Cimarron deposit lies along the northeastern margin of the Walker Lane mineralized structural zone, The Cimarron property is situated at the intersection of this northwest-trending regional structure and a northerly-trending belt of productive (+1 Moz) gold deposits .
Alterationbleaching and argillization of host rocks
Economic & production
Development statusPast Producer
Production years1937-1940
First production1937
Last production1970
Identification
Deposit ID10310477
MRDS IDM231755
Alternate namesNorth Breccia Mineralized Zone, San Antone Mineralized Zone, CO8 Mineralized Zone, West Adit Mineralized Zone, West ore pod, Central ore pod, East ore pod, San Antonio Mine, Cimarron Group
RegionNA
Data scoreB
Coordinates38.3416, -117.2537
References
Kral, V.E., 1951, Mineral Resources of Nye Co.: NBMG Bull. 50, p.161.Kleinhampl, F.J. and Ziony, J.I., Geology and Mineral Deposits of Northern Nye Co., 1984, NBMG Bull. 99B.Northern Miner, 12/2/96.NBMG MI-1996Bullion River Gold Corp website: http://www.bullionriver.com/projects/cimarron.html#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.