Roaring Creek

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Zn
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale TK
Quadrangle map, 1:63,360-scale B-2
Latitude 62.2578
Longitude -147.9174
Nearby scientific data Find additional scientific data near this location
Location and accuracy This placer prospect is on Roaring Creek, it extends upstream from a point about 1.25 miles from its mouth on the Oshetna River. The location is accurate to within a 1/4 mile. This is locality 60 of Csejtey and Miller (1978).

Geologic setting

Geologic description

Gold in Roaring Creek occurs in Tertiary(?) stream and bench, alluvial deposits that overlie Tertiary volcanic rocks (Csejtey and others, 1978). The creek drains Jurassic quartz diorite, Talkeetna Formation volcanic rocks, sandstone, and argillite, and Tertiary fluviatile conglomerate. The gravel deposits are up to 200 feet wide and 20 feet thick. The stream gradient ranges from 150 to 500 feet per mile (Kurtak and others, 1992). Stream-sediment samples contain up to 4.5 parts per million gold (Balen, 1990) and 115 parts per million zinc (Kurtak and others, 1992).
Multiple placer claims are located along lower Roaring Creek. 'Encouraging' prospects were described by Chapin (1918). Black Creek Mining Company held mining claims in 1990.
Geologic map unit (-147.919586505339, 62.2573263755798)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Tertiary?

Production and reserves

Workings or exploration Multiple placer claims are located along lower Roaring Creek. 'Encouraging' prospects were described by Chapin (1918). Limited stream sampling by the U.S. Bureau of Mines (Balen, 1990; Kurtak and others, 1992). Black Creek Mining Company held mining claims in 1990.
Indication of production Undetermined
Reserve estimates Roaring Creek contains an estimated 500,000 cubic yards of potentially auriferous gravel (Kurtak and others, 1992). No estimate of grade has been made.

Additional comments

MAS/MILS number 20760019.

References

MRDS Number A012203

References

Reporters R.K. Rogers (U. S. Geological Survey contractor)
Last report date 10/2/2002