Mine detail: Alpine Mine

Previously called 'Porvenir Mine*ear* and Le* ClaimsNBMG Sample Site 2615'

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Location

Lat / long: 41.19517, -117.28929

Resource(M)

Primary: Tungsten
Tertiary: Manganese, Molybdenum
Ore: Scheelite
Gangue: Calcite, Cordierite, Diopside, Epidote, Garnet, Quartz, Tremolite, Wollastonite
Orebody form: IRREGULAR TABULAR LENSES
Discovery year: 1943

Production

Operation type: Unknown
Deposit type: Contact Metamorphic
Production size: Small
Development status: Past Producer
First production started: 1943

Geology

Host rock:Preble Formation
Host type:Limestone
Associated type:Diorite
Structure:Wnw-Trending Faults; Plunging Overturned Fold
Alteration processes:Bleaching; Silication

References

MRDSM232734
DEP10045075
Reference{Deposit:: WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS OF HUMBOLDT COUNTY, NEV; NEV. BUREAU OF MINES BULL. 59.}{Deposit:: 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. 431}{Deposit:: HOBBS, 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 NO. 44.}{Deposit:: TINGLEY, J.F., 1978, UNPUBLISHED REPORT ON GETCHELL PROJECT, ON FILE AT NEVADA BUREAU OF MINES.}{Deposit:: TINGLEY, J. V., 6 SEP 84, NBMG FIELD EXAMINATION ANDSAMPLE ANALYSIS.}{Deposit:: NBMG STAFF, 1985, NBMG OFR 85-3.}{Deposit:: STAGER, H. K., IN PREPARATION, NBMG BULLETIN ON TUNGSTEN IN NEVADA.}{Deposit:: NBMG DISTRICT FILE 136, ITEM 19- UNPUB USBM DATA ON ALPINE MINE.}
ReporterLa Pointe, D.D., La Pointe, D.D. (Tingley, J.V.)