Lenard Harbor

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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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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