The North Mosquito Flats is a silver and copper 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.
North Mosquito Flats MRDS details
Site Name
Primary: North Mosquito Flats
Commodity
Primary: Silver
Primary: Copper
Secondary: Molybdenum
Secondary: Zinc
Secondary: Fluorine-Fluorite
Secondary: Gold
Secondary: Lead
Location
State: Alaska
District: Fortymile
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Argillic alteration, iron staining, and silicification are all present in the porphyritic rhyolite and the quartzite at the prospect (Doyon Ltd., 1997).
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Reference): Primary Reference = Doyon Ltd., 1998
Comment (Exploration): Status = Active
Comment (Workings): Workings / Exploration = In 1976, the USGS conducted a mineral resource appraisal and an aeromagnetic reconnaissance of the area (Curtin and others, 1976; U.S. Geological Survey, 1976). In recent years, soil and rock sampling has been conducted on the property.
Comment (Deposit): Other Comments = This prospect is within Doyon Ltd. selected lands. For more information, contact Doyon Ltd.
Comment (Geology): Geologic Description = The geology in the North Mosquito Flats prospect area includes quartzite on the west ridge of the prospect, and altered granodiorite on the east ridge. Porphyritic rhyolite is also found (Doyon Ltd., 1998). The bedrock is Paleozoic schist and quartzite intruded by Mesozoic quartz monzonite and granodiorite (Foster, 1970). Argillic alteration, iron staining, and silicification are present. North Mosquito Flats first received attention in the 1970's and 1980's when USGS geochemical studies discovered lead, molybdenum, and zinc anomalies in silt in the northern drainages to Mosquito Flats (Curtin and others, 1976). Subsequent stream sediment samples were anomalous in gold. Traverses down-ridge found high gold values between the two ridges on the property. Soils collected in 1981 show anomalies in copper and fluorine (Doyon Ltd., 1998).
References
Reference (Deposit): Foster, H.L., 1970, Reconnaissance geologic map of the Tanacross quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geological Investigations Map I-593, 1 sheet, scale 1:250,000.
Reference (Deposit): Doyon, Limited, 1998, Veta Prospects 1997 Volume 1: Fairbanks, Alaska, Doyon, Limited., unpublished report 98-10, 256 p. (Report held by Doyon, Limited, Fairbanks, Alaska.)
Reference (Deposit): U.S. Geological Survey, 1976, Aeromagnetic map of the Tanacross quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-767-A, 2 sheets.
Reference (Deposit): Foster, H.L., Albert, N.R.D., Barnes, D.F., Curtin, G.C., Griscom, Andrew, Singer, D.A., and Smith, J.G., 1976, The Alaskan Mineral Resources Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Tanacross quadrangle, Alaska: U.S. Geological Survey Circular 734, 23 p.
Reference (Deposit): Curtin, G.C., Day, G.W., O'Leary, R.M., Marsh, S.P., Tripp, R.B.,1976, Geochemical maps showing the distribution and abundance of molybdenum in the Tanacross Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-0767-G.
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.
