Margot Creek Copper Occurrence, Bristol Bay Mining District, Lake and Peninsula Borough, Alaska, USAi

Regional Level Types
Margot Creek Copper Occurrence	Occurrence
Bristol Bay Mining District	Mining District
Lake and Peninsula Borough	Borough
Alaska	State
USA	Country

This occurrence is in the Katmai National Monument.
Location: This occurrence is at an elevation of about 2,200 feet in the southern headwaters of Margot Creek. The occurrence is in the SW1/4 sec. 13, T. 22 S, R. 38 W., of the Seward Meridian. This location is accurate within one-quarter mile.
Geology: This occurrence consists of pyrite- and chalcopyrite-bearing quartz veins at the propylitzed margin of a Tertiary, hypabyssal stock (Riehle and others, 1993). The veins grade inward to poorly developed stockworks having veinlets of chalcopyrite and molybdenite in the potassic altered core of the pluton. The maximum length of the exposed area of the core of the pluton is about 110 yards.
Age: Tertiary or younger; the pyrite- and chalcopyrite-bearing quartz veins cut a Tertiary hypabyssal pluton.
Alteration: Propylitic alteration grading inward to potassic alteration in the core of the stock.

Commodities (Major) - Cu, Mo
Development Status: None
Deposit Model: Porphyry copper-molybdenum (Cox and Singer, 1986; model 21a).

Other Databases

Link to USGS - Alaska:	MK012

Other Regions, Features and Areas containing this locality

References