Abstract: The Strike property is located in the Campbell Range belt in southeastern Yukon. The study area is underlain by a wide variety of mafic volcanic and volcaniclastic rocks, as well as altered mafic intrusions and cherty metasedimentary rocks. Together these rock units are interpreted to comprise several discrete, relatively flat-lying and highly faulted lithologic assemblages. Lithogeochemical analyses of metavolcanic rocks that host mineralization on the property concluded that they are moderately enriched mid-ocean ridge basalts (E-MORB) to normal basalts (N-MORB) that likely formed in an ocean basin and/or back-arc/marginal basin setting. Diamond drilling intersected minor syngenetic, massive pyrite-chalcopyrite mineralization associated with hematitic chert/exhalite, as well as quartz-pyrite-chalcopyrite veining in a rubbly fault zone. Lead isotopic compositions of the mineralization are consistent with it being syngenetic Cyprus-type volcanogenic (VMS) mineralization. The results of the study highlight the potential for more Cyprus-type VMS mineralization in the Campbell Range in addition to the previously discovered Ice deposit and Money occurrence.

Authors: Mann, R.K. and Mortensen, J.K.

Keywords: Campbell Range, deposit models, VMS, Volcanogenic Massive Sulphide

NTS Mapsheet(s): 105G, 105H

Citation: Mann, R.K. and Mortensen, J.K., 2000. Geology, geochemistry, and lead isotopic analysis of mineralization of the Strike property, Campbell Range, southeastern Yukon. In: Yukon Exploration and Geology 1999, Emond, D.S. and Weston, L.W. (eds.), Exploration and Geological Sciences Division, Yukon Region, Indian and Northern Affairs Canada, p. 237-245.

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