Unnamed Occurrence (ARDF - TA020; near peaks of Little Taylor Mountains), Aniak Mining District, Dillingham Census Area, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - TA020; near peaks of Little Taylor Mountains)	- not defined -
Aniak Mining District	Mining District
Dillingham Census Area	Census Area
Alaska	State
USA	Country

Location: This occurrence is on the crest of the Little Taylor Mountains, 3.1 miles southeast of the junction of Fork and Taylor creeks. The occurrence is near peak 2,100 at an elevation of about 2,100 feet, in the SW1/4 of section 24, T. 9 N., R. 45 W., of the Seward Meridian. This occurrence was included under the name 'Little Taylor Mts.' by Cobb (1976 [OF 76-606]).
Geology: Several Cretaceous or Tertiary felsic dikes or sills cut mid-Cretaceous clastic sedimentary rocks of the Kuskokwim Group in the higher parts of the Little Taylor Mountains (Cady and others, 1955, p. 71, plates 1 and 6). At a locality a little northwest of the summit of the Little Taylor Mountains, the felsic dikes or sills trend northwest, and dip southwest, parallel to the bedding of the enclosing sedimentary rocks. The felsic intrusions and the enclosing sedimentary rocks are strongly silicified and pyritized. 'Traces of copper' were also noted by Cady and others (1955, p. 122) in the Little Taylor Mountains. In 2005, T. K. Bundtzen (oral communication, 2005) found thin, arsenopyrite-bearing quartz veins in or near felsic intrusives on the southwest flank of the mountains at an elevation of about 1850 in SW1/4 sec 24, T9N, R45W of the Seward Meridian. Gold is not specifically noted but possibly is present, probably in the quartz veins.
Workings: Only some surface examination and sampling.
Age: Late Cretaceous or early Tertiary, the age of the felsic plutons in southwest Alaska that intrude the mid-Cretaceous clastic sedimentary rocks of the Kuskokwim Group.
Alteration: Silicification, pyritization, and sericitization.

Commodities (Major) - Au (?); (Minor) - As, Cu
Development Status: None
Deposit Model: Gold(?)-bearing altered felsic intrusive rocks.

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Link to USGS - Alaska:	TA020

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References