Commodities
PrimaryTungsten
TertiaryManganese, Molybdenum
Commodity typeM
Deposit
Deposit typeContact Metamorphic
Model42: W skarn
Deposit sizeS
Orebody formIRREGULAR TABULAR LENSES
Ore controlTactite At Granodiorite Contact With Sedimentary Rock
Materials
Ore mineralsScheelite
GangueCalcite, Cordierite, Diopside, Epidote, Garnet, Quartz, Tremolite, Wollastonite
Geology
Host rockLimestone · Preble Formation
Associated rockDiorite
StructureWnw-Trending Faults; Plunging Overturned Fold
AlterationBleaching; Silication
Economic & production
Development statusPast Producer
First production1943
Discovery year1943
Identification
Deposit ID10045075
MRDS IDM232734
Alternate namesPorvenir Mine, O'Leary's and Lee's Claims, NBMG Sample Site 2615
RegionNA
Data scoreB
Coordinates41.19517, -117.28929
References
WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS OF HUMBOLDT COUNTY, NEV; NEV. BUREAU OF MINES BULL. 59.HOTZ, P.E., AND WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS OF THE OSGOOD MOUNTAINS QUADRANGLE HUMBOLDT CO, NEV: U.S.G.S. PROF. PAPER. 431HOBBS, S.W., AND CLABAUGH, S.E., 1946, TUNGSTEN DEPOSITS OF THE OSGOOD RANGE, HUMBOLDT COUNTY, NEV, UNIV. NEV. BULL. V. 40, NO. 5; GEOL & MIN. SER. NO. 44.TINGLEY, J.F., 1978, UNPUBLISHED REPORT ON GETCHELL PROJECT, ON FILE AT NEVADA BUREAU OF MINES.TINGLEY, J. V., 6 SEP 84, NBMG FIELD EXAMINATION ANDSAMPLE ANALYSIS.NBMG STAFF, 1985, NBMG OFR 85-3.STAGER, H. K., IN PREPARATION, NBMG BULLETIN ON TUNGSTEN IN NEVADA.NBMG DISTRICT FILE 136, ITEM 19- UNPUB USBM DATA ON ALPINE MINE.