The Blue Bucket is a gold 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
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Blue Bucket MRDS details
Site Name
Primary: Blue Bucket
Secondary: Beach Adit
Commodity
Primary: Gold
Secondary: Copper
Location
State: Alaska
District: Ketchikan
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
Model Name: Low-sulfide Au-quartz vein
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Gold
Ore: Pyrite
Gangue: Quartz
Comments
Comment (Deposit): Model Name = Low-sulfide gold-quartz veins (Cox and Singer, 1986; model 36a)
Comment (Deposit): Other Comments = the Blue Bucket prospect is also known as the Beach Adit prospect (Maas and others, 1995, p. 191).
Comment (Geology): Age = The auriferous quartz fissure vein probably is Late Cretaceous.
Comment (Reference): Primary Reference = Wright and Wright, 1908; Maas and others, 1995
Comment (Reserve-Resource): Reserves = Exploration surveys in the Blue Bucket prospect area by private interests have identified large inferred zones of gold-bearing strata (Maas and others, 1995, p. 191). One such zone is 14-18 feet wide and at least 114 feet long, and is estimated to average 3.4 ppm Au. This zone is part of a larger zone 36 feet wide and at least 456 feet long that is estimated to average 1.7 ppm Au.
Comment (Geology): Geologic Description = The country rocks near this site include gray and green phyllite and semischist derived from intertonguing flysch and andesitic and basaltic volcanic rocks (Berg and others, 1988, p. 17-20); and gray felsic schist possibly derived from silicic tuff (Maas and others, 1995, p. 183 and fig. 46). Near Smugglers Cove, the bedded rocks are intruded by diorite that may be transitional to the andesitic and basaltic volcanic rocks. The bedded and intrusive rocks were regionally metamorphosed to greenschist grade in Late Cretaceous time (Brew, 1996, p. 27). Their premetamorphic age is uncertain. Berg and others (1988, p. 17) note that the intertonguing flysch and volcanic rocks closely resemble Upper Jurassic to mid-Cretaceous marine strata nearby on Gravina Island.? the deposit consists of an auriferous, pyrite- and chalcopyrite-bearing quartz fissure vein in pyritic chlorite and sericite schists (Wright and Wright, 1908, p. 156-157; Maas and others, 1995, p. 184-189). The vein crosscuts the foliation of the schists, which strike N38W and dip 65 NE. The deposit was explored in the early 1900s by a 16-foot adit.? Maas and others (1995, p. 184-189, fig. 46, and tables 25 and 26) suggest that the Blue Bucket deposit may be part of a belt of exhalative volcanogenic gold deposits (KC035) that extends along the northeast shore of Smugglers Cove and also includes the Mary T. (KC036) and U.S. (KC037) deposits. The average metal contents of their samples of the Blue Bucket deposit are 1.68 ppm Au, 2.3 ppm Ag, 4367 ppm Cu, 10.2 ppm Pb, and 97 ppm Zn. The high Cu assay indicates that the deposit contains chalcopyrite in addition to the auriferous pyrite.? the age of the postulated exhalative deposits is unknown. The quartz fissure vein, which crosscuts the foliation of the schist, probably is Late Cretaceous (see KC028).
Comment (Workings): Workings / Exploration = The deposit was explored in the early 1900s by a 16-foot adit. The Blue Bucket prospect area was diamond-drilled by private interests in 1989 (Maas and others, 1995, p. 191). Five holes were drilled with a cumulative length of about 1060 feet. Other private exploration in the Smugglers Cove area has included soil geochemical testing, and VLF and magnetometer surveys. These surveys identified large inferred zones of gold-bearing strata. One such zone is 14-18 feet wide and at least 114 feet long, and is estimated to average 3.4 ppm Au. This zone is part of a larger zone 36 feet wide and at least 456 feet long that is estimated to average 1.7 ppm Au.
References
Reference (Deposit): Wright, F.E., and Wright, C.W., 1908, The Ketchikan and Wrangell mining districts, Alaska: U.S. Geological Survey Bulletin 347, 210 p.
Reference (Deposit): Elliott, R.L., Berg, H.C., and Karl, Susan, 1978, map and table describing metalliferous and selected nonmetalliferous mineral deposits, Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-file Report, 78-73-B,17 p., scale 1:250,000.
Reference (Deposit): Berg, H.C., Elliott, R.L., and Koch, R.D., 1988, Geologic map of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Mineral Investigations Series Map MF-1807,27 p., scale 1:250,000.
Reference (Deposit): Maas, K.M., Bittenbender, P E., and Still, J.C., 1995, Mineral investigations in the Ketchikan mining district, southeastern Alaska: U.S. Bureau of Mines Open-File Report 11-95, 606 p.
Reference (Deposit): Brew, D.A., 1996, Geologic map of the Craig, Dixon Entrance, and parts of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2319, 53 p., 1 sheet, scale 1:250,000.
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