The Lenard Harbor is a gold and silver 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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Lenard Harbor MRDS details
Site Name
Primary: Lenard Harbor
Commodity
Primary: Gold
Primary: Silver
Secondary: Mercury
Location
State: Alaska
District: Alaska Peninsula
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: Epithermal veins
Model Name: Epithermal vein, Sado
Model Name: Hot-spring Au-Ag
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Country rocks show weak propylitic alteration.
Rocks
Name: Granite
Role: Host
Age Type: Host Rock
Age Young: Pliocene
Name: Granite
Role: Host
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Not available
Comments
Comment (Exploration): Status = Inactive
Comment (Deposit): Model Name = Hot-springs gold-silver, epithermal gold vein, polymetallic vein
Comment (Deposit): Model Number = 25a, 25d, 22
Comment (Geology): Geologic Description = Christie (1974) reported two 3,000 ft (900 m) in diameter color anomalies resulting from irregularly distributed disseminated pyrite, and apparently not related to any intrusive bodies. Country rocks are pyroclastic volcanic rocks and minor andesite flows and diorite dikes. Pyroclastic rocks having high initial porosity are best pyritized. A few weakly altered diorite dikes having trace disseminated pyrite cut the lower elevation(?) anomaly.
Comment (Workings): Workings / Exploration = Brief reconnaissance geologic mapping reported by Christie (1974, source of geologic description) who also collected a few silt samples. Only anomaly was silver at up to 1.6 ppm. Butherus and others (1979) did brief reconnaissance of area for gold around Lenard Harbor and found elevated mercury over a broad area.
Comment (Reference): Primary Reference = Christie, 1974
Comment (Geology): Age = Pliocene or younger
References
Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.
Reference (Deposit): Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps. (Report held by the Aleut Corporation, Anchorage, Alaska.)
Reference (Deposit): Butherus, D.L, Gressitt, E.E., Pray, J., Corner, N.G., Lindberg, P.H., and Fankhauser, R.E., 1979, Exploration and evaluation of the Aleut Native Corporation lands; Volume III: Resource Associates of Alaska, 69 p. 90 sheets, various sacales. (Report held by the Aleut Native Corporation, Anchorage, Alaska.)
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