Mowgli; Sher Khan; Upper Camp group Prospect, Chandalar Mining District, Yukon-Koyukuk Census Area, Alaska, USAi

Regional Level Types
Mowgli; Sher Khan; Upper Camp group Prospect	Prospect
Chandalar Mining District	Mining District
Yukon-Koyukuk Census Area	Census Area
Alaska	State
USA	Country

See also: Jim-Montana (CH095). Alaska Kardex Nos. 031-58C, 031-60B (Kardex is a card file mining claim information system located at the State of Alaska DNR Public Information Center in Fairbanks).
Location: The Mowgli-Sher Khan claim group lies in the hills immediately south of the North Fork Chandalar River between Quartz and Geroe creeks and approximately 25 miles north-northwest of Chandalar. The reference point is located near the south-center of the claim group (NW1/4 sec. 36, T. 35 N., R. 6 W., of the Fairbanks Meridian). The claims extend approximately a mile west and southeast from the reference point. The Jim-Montana property (CH095) is west of and contiguous with the Mowgli-Sher Khan claim group, and together they form one large claim block. The location is accurate within a 1-mile radius.
Geology: Early descriptions of this prospect indicated only the presence of chalcopyrite, sphalerite, and minor galena and tennantite in skarn in limestone near a thrust-fault contact with Paleozoic or older calcareous schist (Grybeck, 1977; Cobb and Cruz, 1983). Newberry and others (1986) included it in a group of skarn deposits that form a belt northwest of and related to the granitic rocks of the Devonian(?) Horace Mountain plutons. Many of these skarns exhibit both garnet and pyroxene prograde and epidote and actinolite retrograde mineral assemblages, and Newberry and others (1986) stated that the mineralogy, mineralization, and alteration of these skarns categorize them as continental-margin, porphyry-related copper skarns. Newberry and others (1986) classified the prospect as a Cu-Zn-Pb deposit and suggested that these Pb-Zn-rich skarns represent distal concentrations surrounding porphyry systems in the Chandalar district. Newberry and others (1997) classify the Mowgli deposit as a calcic Zn-Pb skarn and replacement body. The country rocks near this prospect were mapped by Brosg
Workings: Claims staked in 1975 and 1976.
Age: Devonian(?) based on reported Early Devonian Pb/Pb zircon ages from the associated Baby Creek batholith and Horace Mountain plutons (Dillon and others, 1996).
Alteration: Calc-silicate(?).

Commodities (Major) - Cu, Zn; (Minor) - Ag, Pb
Development Status: None
Deposit Model: Zn-Pb skarn deposits(?) (Cox and Singer, 1986; model 18c)

Other Databases

Link to USGS - Alaska:	CH094

Other Regions, Features and Areas containing this locality

References