Salmon River placer tailings
Detailed Description
Historic dredge and large volume of gold placer tailings that contain platinum group and chromium critical minerals on the Salmon River near Goodnews Bay, Alaska. Dragline-sluice tailings are in the foreground, stacked dredge tailings are in the background near the dredge.
Sources/Usage
Public Domain.
Photo by Susan Karl, U.S. Geological Survey
Related
Critical Minerals in Alaska Placer Deposits and Southeast Alaska Mineral Systems
Critical minerals have been identified in most Alaskan placers, yet little is known about the concentration of these phases. Historic and active placer mines have typically produced gold and are widespread across Alaska. Activity in the placer districts has resulted in gravel piles and sluice tailings that are products of gold mining. Gold has been the traditional target of placer mining; however...
Related
Critical Minerals in Alaska Placer Deposits and Southeast Alaska Mineral Systems
Critical minerals have been identified in most Alaskan placers, yet little is known about the concentration of these phases. Historic and active placer mines have typically produced gold and are widespread across Alaska. Activity in the placer districts has resulted in gravel piles and sluice tailings that are products of gold mining. Gold has been the traditional target of placer mining; however...