Ettrain Creek

The Ettrain 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: Ettrain Creek

Commodity

Primary: Zinc
Secondary: Antimony
Secondary: Copper
Secondary: Arsenic
Secondary: Tungsten
Secondary: Cadmium
Secondary: Lead

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

Model Name: Mississippi Valley, Appalachian Zn

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Quartz stockwork veining in limestone and pervasive chalcedonic quartz replacements in limestone breccias are found throughout the prospect. Locally, small amounts of iron-oxide gossan are found in quartz veins, and some black oxides with cubic and hexagonal shapes are found in the gossan (DiMarchi and others, 1993).

Rocks

Not available

Analytical Data

Not available

Materials

Gangue: Quartz

Comments

Comment (Exploration): Status = Active

Comment (Deposit): Other Comments = This property lies on Doyon, Limited selected or conveyed land. For more information, contact Doyon, Limited.

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

Comment (Workings): Workings / Exploration = The Ettrain Creek prospect has been soil- and rock-sampled several times since the mid-1970s. In 1993, ASA Inc. conducted a soil and rock sampling program and did some geologic mapping at the prospect. This property lies on Doyon, Limited selected or conveyed land.

Comment (Geology): Geologic Description = The geology at the Ettrain Creek prospect consists of north-dipping Cambrian through Devonian sedimentary rocks, which include the Jones Ridge, Ogilvie, and Nation River Formations, and the McCann Hill Chert (Miyaoka, 1990). The sequence is exposed within a fenster surrounded by the Jones Ridge Formation (DiMarchi and others, 1993). Nearby northwest-trending thrust faults may be a source of mineralization (Dover and Miyaoka, 1988). Silicification is present as quartz stockwork veining in limestone, and as pervasive chalcedonic quartz replacements in limestone breccias. The silicified breccias locally contain small amounts of iron-oxide gossan. Quartz veins show multiple cross-cutting relationships. Local occurrences of iron-oxide gossan containing black pseudomorphs of cubic and hexagonal minerals were also reported. Rock and soil samples show widespread zinc anomalies and lesser anomalies of other metals (lead, arsenic, copper, antimony, tungsten, and cadmium) (DiMarchi and others, 1993). The Ettrain Creek prospect has been explored by soil and surface sampling since the mid-1970s.

Comment (Deposit): Model Name = Carbonate-hosted Zn-Cu? (Cox and Singer, 1986; model 32b).

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.)

Reference (Deposit): Dover, J.A., and Miyaoka, R.T., 1988, Reinterpreted geologic map and fossil data, Charley River quadrangle, east-central Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2004, 2 sheets, scale 1:250,000.

Reference (Deposit): Miyaoka, R.T., 1990, Fossil locality map and fossil data for the southeastern Charley River quadrangle, east-central Alaska: U.S. Geological Survey Miscellaneous Field Studies MF-2007, 1 sheet.

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