Commodities
PrimaryGold
SecondarySilver
Commodity typeM
Deposit
Deposit typesediment-hosted gold-silver
Model173: Sediment-hosted Au
Deposit sizeS
Orebody formtabular, disseminated, and irregular
Ore controlThe N10W-trending Genesis fault and the N45 W Reindeer fault have been identified as the primary controls in the Genesis-Beast and the Northwest Genesis-North Star deposits, respectively. Schutz and Williams (1995) described higher grade gold mineralization in the Genesis deposit as being controlled in part along the hinge zone of the N10.W-trending, northerly plunging Tuscarora anticline along the southern and deep extensions of the deposit.
Materials
Ore mineralsGold, Clay
GangueQuartz
Geology
Host rockLimestone,Carbonate,Argillite,Chert · "Popovich Formation", "Vinini Formation ", "Roberts Mountains Formation"
Associated rockRhyolite · Goldstrike Stock
StructureGenerally northwest-trending, broad to moderate amplitude, anticlinal folds play an important role as structural traps to fluid migration within individual deposits and on a regional scale. The autochthonous carbonate sequences that form the Carlin and Lynn tectonic windows are postulated to be remnant segments of a larger north-northwest-trending regional-scale anticline, with a doubly plunging fold axis that extends from the Gold Quarry deposit northward to the Genesis deposit. In this unified tectonic window model, gold deposits of the north-central and south-central Carlin trend are clustered along both the northeast and southwest flanks of the anticline, while its central portion has been segmented into a Tertiary, postmineral graben by late-phase Basin and Range extensional block faulting., The K and Anne dikes are important dike-filled northeast fault structures in the Genesis Mine area.
AlterationZonation patterns for silica-sulfide breccia pipes such as Deep Star exhibit compact envelopes in which silicification and sulfidation are more intensely focused than at other Carlin deposits.
Economic & production
Development statusProducer
First production1961
Last production2004
Discovery year1985
Identification
Deposit ID10310439
MRDS IDM242941
Alternate namesNorth Star, Genesis, NW Genesis, West #9, Blue Star, Deep Star, Golden Zia, Pay Raise, Widge, Beast, Bobcat, Blue Star Ridge, Skarn Hill, Sold
RegionNA
Data scoreB
Coordinates40.9299, -116.32399
References
Bonham, H.F., 1988 in NBMG MI-1987.Bonham, H.F., 1986 NBMG Map 91.Nevada Mining Assn. Bull, Oct-Nov, 1985.NBMG Mining District File 115, numerous press clippings.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.Chris H. Clode, Steven R. Grusing, Ivan M. Johnston, and Dean G. Heitt, 2002, Geology of the Deep Star Gold Deposit in NBMG Bull. 111Keith Bettles, 2002, Exploration and geology, 1962 to 2002, at the Goldstrike Property, Carlin Trend, Nevada; in NBMG Bull. 111.LONG AND OTHERS, 1998