Smog Occurrence, Bonnifield Mining District, Southeast Fairbanks Census Area, Alaska, USAi

Regional Level Types
Smog Occurrence	Occurrence
Bonnifield Mining District	Mining District
Southeast Fairbanks Census Area	Census Area
Alaska	State
USA	Country

Location: This occurrence is at an elevation of about 4,200 feet, on the north side of an east-flowing tributary to upper Slide Creek. The map site is about 1.7 miles northeast of VABM 6463 (Art), in the SE1/4 of sec. 5, T. 11 S., R. 2 E., of the Fairbanks Meridian. The location is accurate to within 1.5 miles. This is locality 6 of Cox and others (1989).
Geology: The country rock in the area of this occurrence is the Lower Mississippian to Middle Devonian Totatlanika Schist. The deposit is in schist and consists of lenses of massive chalcopyrite, galena, pyrite, and sphalerite, accompanied by chlorite, quartz, and sericite (www.grayd.com, 1999).
Workings: Surface workings only.
Age: The deposit is interpretted to have formed synchronously with the deposition of the mid-Paleozoic protoliths of the Totatlanika Schist.
Alteration: Footwall alteration zones contain chlorite and sericite.

Commodities (Major) - Pb, Zn; (Minor) - Ag, Au, Cu
Development Status: None
Deposit Model: Kuroko massive sulfide (Cox and Singer, 1986; model 28a)

Other Databases

Link to USGS - Alaska:	HE126

Other Regions, Features and Areas containing this locality

References