Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale AN
Quadrangle map, 1:63,360-scale D-6
Latitude 61.8
Longitude -149.24
Nearby scientific data Find additional scientific data near this location
Location and accuracy On mountainside west of Sydney Creek, approximately 1 mile southwest of the confluence of Sydney Creek with Archangel Creek. This is locality 24 from Figure 9 (Cohen, 1982). Accurate within 1,000 feet.

Geologic setting

Geologic description

Details about the prospect are unavailable. Most likely, a gold-bearing quartz vein(s) cuts the Late Cretaceous Willow Creek Pluton. The Willow Creek Pluton is a zoned pluton. The outer part consists of hornblende quartz diorite and lesser hornblende tonalite; the core consists of hornblende-biotite granodiorite, and lesser hornblende-biotite quartz monzodiorite and biotite quartz monzonite.
Geologic map unit (-149.242210151643, 61.7994709534638)
Mineral deposit model Low-sulfide Au-quartz veins? (Cox and Singer, 1986; model 36a?).
Mineral deposit model number 36a?
Age of mineralization Late Cretaceous or younger; the host of mineralization is the Late Cretaceous Willow Creek Pluton.

Production and reserves

Workings or exploration Apparently only minor surface prospecting.
Indication of production None


MRDS Number A106230
Reporters D.P. Bickerstaff (USGS contractor)
Last report date 7/30/1998