Tatlawiksuk Springs

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Ag
Ore minerals native au

Geographic location

Quadrangle map, 1:250,000-scale MG
Quadrangle map, 1:63,360-scale A-6
Latitude 62.043
Longitude -155.763
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Tatlawiksuk Springs occurrence is located in a low marshy area in a valley tributary of Tatlawiksuk River at an elevation of 475 feet (145 m) in the NW1/4 sec. 31, T. 23 N., R. 35 W., of the Seward Meridian. The reporter investigated the site in 1989 and 1992.

Geologic setting

Geologic description

Bundtzen and others (1991) first described Tatlawiksuk Hot Springs, a newly discovered geothermal system in western Alaska. Tatlawiksuk Hot Springs is a fairly alkaline, low-chlorine, sodium bicarbonate spring that is comparable to other Alaskan hot springs related to faulted granitic pluton-sedimentary rock contact zones. The four recognized Tatlawiksuk springs emit hot waters that reach a maximum temperature of 68 degrees Celsius; the springs plumbing system exhibits a north-south alignment parallel to high-angle faults mapped in the area (Bundtzen and others, 1991; Wilson and others, 1998). During State Land Selection resource investigations conducted by the reporter in 1992 (Division of Geological and Geophysical Surveys Staff, 1993), several grains of placer gold were detected in sinterous material at the northern end of the spring system.
Geologic map unit (-155.765336085038, 62.0423366102062)
Mineral deposit model Hot Springs gold-silver? (Cox and Singer, 1986; model 25a?).
Mineral deposit model number 25a?
Age of mineralization Quaternary(?).
Alteration of deposit Siliceous sinter.

Production and reserves

Workings or exploration During State Land Selection resource investigations conducted by the reporter in 1992 (Division of Geological and Geophysical Surveys Staff, 1993), several grains of placer gold were detected in sinterous material at the northern end of the spring system.
Indication of production None
Reserve estimates None.

References