Unnamed Occurrence (ARDF - MH317; headwaters of the Chistochina River), Chistochina Mining District, Southeast Fairbanks Census Area, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - MH317; headwaters of the Chistochina River)	- not defined -
Chistochina Mining District	Mining District
Southeast Fairbanks Census Area	Census Area
Alaska	State
USA	Country

Unpublished data cited is available for viewing by contacting Grayd Resources Inc. in Vancouver, B. C., Canada (www.grayd.com), or Northern Associates Inc. in Fairbanks, Alaska.
Location: This occurrence is at an elevation of about 4,400 feet, 8 miles southeast of Mount Kimball. It is on moraine at the foot of an unnamed glacier at the head of the Chistochina River at the northeast corner of section 29 T. 16 N., R. 5 E., Copper River Meridian. This location is accurate.
Geology: During reconnaissance work in 1978, Resource Associates of Alaska, Inc. discovered pyrite-rich float on a glacial moraine (R.A. Blakestad and others, unpublished Resource Associates of Alaska Inc. report, 1978). There is no indication of any follow-up work at this site. The occurrence is 2.5 miles down the glacier from the SM massive sulfide occurrence (MH316). The rocks of the Hayes Glacier unit that hosts this occurrence consist of fine-grained phyllitic schist and mylonite derived from sedimentary and volcanic protoliths. The rocks locally display intense structural deformation due to their proximity to Denali Fault. The basal part of the unit consists of mafic- to intermediate-composition metavolcanic rocks; they are overlain by interbedded felsic metavolcanic rocks and extensive pelitic and graphitic metasedimentary rocks (Dashevsky and others, 2003).
Workings:

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

Other Databases

Link to USGS - Alaska:	MH317

Other Regions, Features and Areas containing this locality

References