Description
John C. Humphry
Commodities
PrimaryGold
SecondarySilver
TertiaryMercury, Arsenic, Antimony
Commodity typeM
Deposit
Deposit typeLIMESTONE REPLACEMENT, NETWORK QTZ VEINS
Model172: Carbonate-hosted Au-Ag
Deposit sizeL
Ore controlTHRUST FAULT (GOLDHILL FM OVER PALMETTO) LIMESTONE REPLACEMENT
Geology
StructureNE SETS OF FAULTS; EW SETS; OVERTHRUST AND ORE BODIES TREND NW, ANTLER BELT. THRUST FAULT; E-W FOLDING (PALEO), ANTICLINES OVERTURNED TON. GENTLE N. DIP TO TER BEDS.
AlterationCONTACT METAMORPHISM
Economic & production
Development statusProducer
First production1908
Discovery year1905
Identification
Deposit ID60001665
MRDS IDW002910
RegionNA
Data scoreD
Coordinates38.54993, -117.03422
References
FERGUSON, H.G., 1924, GEOLOGY AND ORE DEPOSITS OF THE MANHATTAN DIST., NEV.: USGS BULL. 723, 162 PKOSCHMANN, A.H., AND BERGENDAHL, M.H., 1968, PRINCIPAL GOLD-PRODUCING DISTRICTS IN THE U.S.: USGS PROF. PAPER 610, P. 193FERGUSON, H.G., AND CATHCART, S. H. 1954, GEOLOGY OF THE ROUND MOUNTAIN QUAD, NEV.: USGS GEOL QUAD. MAP, GQ-40EMMONS, W.H., AND GARREY, G H, 1907, NOTES ON MANHATTEN DIST.; USGS BULL. 303 P. 84-92