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Ettrain Creek

Prospect in Alaska, United States with commodities Zinc, Arsenic, Cadmium, Copper, Lead, Antimony, Tungsten
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Geologic information

Identification information

Deposit ID 10307403
Record type Site
Current site name Ettrain Creek

Geographic coordinates

Geographic coordinates: -141.1328, 65.45981 (WGS84)
Relative position The center of the Ettrain Creek prospect is located in section 3, T. 7 N., R. 32 E., of the Fairbanks Meridian; it is near pingos marked on the 1956 U.S. Geological Survey Charley River B-1 topographic map. The prospect covers about 4 square miles. The location is accurate within 1 mile. This prospect is located within Doyon Limited selected or conveyed land.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Zinc Primary
Arsenic Secondary
Cadmium Secondary
Copper Secondary
Lead Secondary
Antimony Secondary
Tungsten Secondary

Materials information

Materials Type of material
Quartz Gangue

Alteration

  • (Local) 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).

Mineral occurrence model information

Model code 228
USGS model code 32b
BC deposit profile E12
Deposit model name Mississippi Valley, Appalachian Zn
Mark3 model number 42

Nearby scientific data

(1) -141.1328, 65.45981
ListMap

Comments on the geologic information

  • 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.

Economic information

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Active

Mining district

District name Black

Comments on the workings information

  • 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.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF CY013

Bibliographic references

  • 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.

  • 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.

  • 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.)

Comments on the references

  • Primary Reference = DiMarchi and others, 1993

General comments

Subject category Comment text
Deposit Model Name = Carbonate-hosted Zn-Cu? (Cox and Singer, 1986; model 32b).
Deposit Other Comments = This property lies on Doyon, Limited selected or conveyed land. For more information, contact Doyon, Limited.

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-00 Cameron, C.E. Alaska Division of Geological and Geophysical Surveys