Mt. Dutton

The Mt. Dutton 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

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Site Name

Primary: Mt. Dutton

Commodity

Primary: Silver
Primary: Copper
Secondary: Lead
Secondary: Zinc
Secondary: Gold

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 vein, generic
Model Name: Polymetallic veins
Model Name: Porphyry Cu

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Christie (1974) reported contact metamorphic effects and weak propylitic alteration.

Rocks

Name: Volcanic Rock (Aphanitic)
Role: Host
Age Type: Host Rock
Age Young: Pliocene

Name: Volcanic Rock (Aphanitic)
Role: Host
Age Type: Associated Rock
Age Young: Pliocene

Analytical Data

Not available

Materials

Ore: Pyrite

Comments

Comment (Deposit): Model Name = Porphyry copper, polymetallic vein, epithermal gold vein

Comment (Deposit): Model Number = 17, 22c, 25

Comment (Exploration): Status = Inactive

Comment (Workings): Workings / Exploration = Christie (1974) reported brief reconnaissance geologic mapping and collected silt samples, none of which showed any anomalies in copper, molybdenum, zinc, silver, or gold. Butherusand others (1979) reported rock and pan concentrate samples slightly anomalous in copper (130 ppm), lead (300 ppm), zinc (600 ppm), and silver (3.2 ppm).

Comment (Reference): Primary Reference = Butherus and other, 1979

Comment (Geology): Geologic Description = Two color anomalies 200 by 400 ft and 3,000 by 1,200 ft (60 by 120 and 900 by 360 m) in hornfelsed volcanic rocks cut by rare diorite dikes (Christie,1974). Pyrite content (0 to 8 percent) is highest in fractured rocks, although most pyrite is disseminated rather than fracture-controlled. Diorite dikes are only weakly altered and are not mineralized. Butherus and others (1979) reported that the color anomalies south and east of Mt. Dutton consist of altered, pyritic andesite containing quartz and calcite veins.

Comment (Deposit): Other Comments = Reported quartz veining (Butherus and others, 1979) lsuggests possibility of epithermal gold vein or polymetallic vein type mineral deposits.

Comment (Geology): Age = Miocene or younger

References

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): 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): 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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