Birch Creek Placer

Alaska, United States

TinGoldBismuthSilverCopperRheniumUraniumThorium

Commodities

PrimaryTin, Gold

TertiaryBismuth, Silver, Copper, Rhenium, Uranium, Thorium

Commodity typeM

Deposit

Deposit sizeS

Materials

Ore mineralsBismuth, Cassiterite, Gold

GangueAnatase, Garnet, Hematite, Ilmenite, Sphene, Zircon

Other materialsMalachite

Geology

Host rockGravel

Associated rockGranite

AlterationIron Derived From The Oxidation Of Pyrite.

Economic & production

Development statusPast Producer

First production1914

Discovery year1914

Identification

Deposit ID10003016

MRDS IDA015531

RegionNA

Data scoreB

Coordinates64.45783, -155.35865

References

USGS MF-405 (B-5), LOC. 9USGS BULL 642, P. 246-247.USGS OF 239, P. 37, 40, 42-44.USGS OF 81-170, P. 16, 17.