Several quartz porphyry dikes intrude a quartz-monzonite pluton and gneiss southeast of VABM Good in the headwaters of the Healy River; well-developed porphyry-style alteration and mineralization in and peripheral to felsic dikes. Molybdenite in a quartz vein on the southern slope of Mount Harper was first reported in 1919. Anomalous tungsten, copper, and molybdenum values were found during a stream-sediment reconnaissance in the Mount Harper area in 1975.
Study area name
U.S. Geological Survey (2014a); Dashevsky and others (1986); Newberry and others (1998)
U.S. Geological Survey National Mineral Resource Assessment Team (2002)
Dashevsky, S.S., Nicol, D.L., and Bond, J., 1986, Mines, prospects, and geochemical anomalies on Doyon Ltd. regional overselection lands, Alaska, Blocks 1-8: Fairbanks, Alaska, Doyon Ltd. Report 86-01a, 300 p.