Waterfall Creek

The Waterfall Creek is a zinc 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: Waterfall Creek

Commodity

Primary: Zinc
Secondary: Lead
Secondary: Molybdenum

Location

State: Alaska
District: Black

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: Alteration at the Waterfall Creek prospect consists of chloritization of the basalt, iron oxide in breccia clasts in silicified limestone or quartzite, and quartz veins and vug fillings (DiMarchi and others, 1993).

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Pyrite
Gangue: Quartz

Comments

Comment (Exploration): Status = Active

Comment (Deposit): Model Name = Fault-controlled Zn?

Comment (Deposit): Other Comments = This prospect is located on Doyon, Limited selected or conveyed land. For more information, contact Doyon, Limited. This site is within the Yukon-Charley Rivers National Preserve.

Comment (Geology): Geologic Description = The Waterfall Creek prospect is underlain by northwest-dipping, Upper Proterozoic to Lower Cambrian Tindir Group rocks (redbeds, basalt, limestone, and conglomerate), which transition northwestward into black chert, green siltstone, and quartzite (DiMarchi and others, 1993). The Waterfall Creek thrust separates the Tindir Group from a Cambrian through Permian sedimentary sequence which lies to the west. Bedding in this area generally strikes north-northeast and dips from 80SE to 55NW (DiMarchi and others, 1993). Minor fine-grained disseminated pyrite is present in altered basalt and siltstone units. Alteration consists mostly of chloritization of basalt and oxidation of cherts and siltstones. Iron oxides are found locally, most of them in clasts of breccia which is hosted by silicified limestone or quartzite. White quartz veins and drusy quartz veinlets and vuggy fillings are also common in brecciated rocks (DiMarchi and others, 1993). Soil and stream sediment samples taken by WGM Inc. and by ASA Inc. are anomalous in zinc in the prospect area. Weak anomalies of molybdenum and lead were also found (DiMarchi and others, 1993).

Comment (Geology): Age = Permian or younger.

Comment (Reference): Primary Reference = DiMarchi and others, 1993

Comment (Workings): Workings / Exploration = WGM Inc. conducted a soil and rock sampling program on the property in the mid-1970s, and in 1993 ASA Inc. conducted a soil and rock sampling program and geologic mapping. The property is located on Doyon, Limited selected or conveyed land.

References

Reference (Deposit): DiMarchi, J.J., Weglarz, T.B., Adams, D.D., Hubert, J.A., and West, A.W., 1993, 1993 annual report reconnaissance program, Doyon option lands: ASA Inc., 120 p. (Report held by Doyon Ltd., Fairbanks, Alaska.)

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