The Von Frank - North is a arsenic and antimony mine located in Alaska.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Von Frank - North MRDS details
Site Name
Primary: Von Frank - North
Commodity
Primary: Arsenic
Primary: Antimony
Secondary: Cobalt
Secondary: Gold
Location
State: Alaska
District: McGrath
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Polymetallic veins
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Sericite-quartz-ankerite in intrusion.
Rocks
Role: Associated
Age Type: Associated Rock
Age in Years: 70.000000+-
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Arsenopyrite
Gangue: Quartz
Comments
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Chronological age is for Von Frank Mountain.
Comment (Workings): Workings / Exploration = In 1991, Central Alaska Gold Company began a sampling program and encountered auriferous mineralization in a border phase of the Von Frank Mountain intrusion (DiMarchi and others, 1994). In 1992, Clautice and others (1993) collected grab samples of intrusive-hosted mineralization, which contained up to 78 ppb gold, 192 ppm antimony, and 100 ppm cobalt.
Comment (Geology): Age = the age of mineralization is Late Cretaceous, based on inferred age of 70.0 Ma Von Frank Mountain pluton (Moll and others, 1981).
Comment (Reference): Primary Reference = Clautice and others, 1993
Comment (Deposit): Other Comments = See Von Frank - South prospect (MD036). The Von Frank - North occurrence is on lands selected or owned by Doyon Ltd. For further information, contact Doyon Ltd. at 210 1st Ave, Fairbanks, Alaska 99701.
Comment (Geology): Geologic Description = Thin stockwork-type arsenopyrite-pyrite veins developed in granodiorite at the west side of Von Frank Mountain intrusion. No dimensions or aerial extent are given (Clautice and others, 1993; DiMarchi and others, 1994) the age of mineralization is Late Cretaceous, based on inferred age of 70.0 Ma Von Frank Mountain pluton (Patton and others, 1980; Moll and others, 1981). In 1992, Clautice and others (1993) collected grab samples of intrusive-hosted mineralization, which contained up to 78 ppb gold, 192 ppm antimony, and 100 ppm cobalt.
Comment (Deposit): Model Name = Polymetallic vein (Cox and Singer, 1986; model no. 22c)
References
Reference (Deposit): DiMarchi, J.J., Weglarz, T.B., Adams, D.D., Huber, J., and West, A.W., 1994, Annual Report for 1993--Doyon Option Lands, Volume 1: ASA Inc. Report, 187 p. (Report held by Doyon Ltd., Fairbanks, Alaska.)
Reference (Deposit): Moll, E.J., Silberman, M.L., and Patton, W.W. Jr., 1981, Chemistry, mineralogy, and K-Ar ages of igneous and metamorphic rocks of the Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811C, 15 p., 2 sheets, scale 1:250,000.
Reference (Deposit): Clautice, K.H., Bowman, N.D., Clough, J.G., Gilbert, W.G., Kline, J.T., Smith, T.E., and Blodgett, R.B., 1993, Land selection Unit 8 (Kantishna River, Ruby, and Medfra quadrangles): References, lead isotope, geochemical and major oxide data: Alaska Division of Geological and Geophysical Surveys, 42 p., 1 sheet, scale 1:250,000.
Reference (Deposit): Patton, W.W., Jr., Moll, E.J., Dutro, J.T., Jr., Silberman, M.L., and Chapman, R.M., 1980, Preliminary geologic map of Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811-A, 1 sheet, scale l:250,000.
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
