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Green, Darwin, 2001

Geology of volcanogenic massive sulphide prospects of the Palmer property, Haines area, southeastern Alaska

Bibliographic Reference

Green, Darwin, 2001, Geology of volcanogenic massive sulphide prospects of the Palmer property, Haines area, southeastern Alaska: Ottawa, Ontario, Canada, Carleton University, M.S. thesis, 254 p., CD.

Abstract

The Palmer property is underlain by mafic-dominated bimodal volcanic rocks and subordinate tuffaceous limestone and argillite that are constrained to Norian to Rhaetian age (Late Triassic) based on new conodont data. Zircon from a rhyolite flow yielded a U-Pb age of 213 +/- 5 Ma. Rocks have undergone regional greenschist facies metamorphism, most likely at low- to mid-greenschist grade, and at least three phases of deformation, with the earliest and most evident being a north-south contractional deformation event. Three prospect areas - Glacier Creek, Cap and Mount Henry Clay - exhibit gross similarities in stratigraphy, alteration, and mineralization, but the strata at each exhibit distinct chemical compositions and are likely not correlative. Mineralization consists of polymetallic (Zn-Cu-Pb-Ag-Au) stratiform baritic massive sulphide bodies, which are underlain by thick alteration zones consisting of quartz-sericite-pyrite +/- chlorite. Baritic massive sulphide bodies are locally leached of sulphides and underlain by supergene Zn and Cu enrichment zones.*

*The dissertation includes a CD that is compound (contains both a paper copy and a CD as part of the dissertation). The CD requires the following applications: Microsoft Office, CorelDraw (Version 8 or higher).

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