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TitleGeochemical Characteristics of Mississippian to Pliensbachian Volcanic and Hypabyssal Rocks in the Hoodoo Mountain area (NTS 104B/14E)
AuthorZagorevski, AORCID logo; Mihalynuk, M G; Logan, J M
SourceGeological Fieldwork 2011, Paper 2012-1; by British Columbia Geological Survey; British Columbia Geological Survey Geological Fieldwork Paper no. 2012-1, 2012 p. 121-134 Open Access logo Open Access
LinksOnline - En ligne
Alt SeriesEarth Sciences Sector, Contribution Series 20110289
PublisherBritish Columbia Ministry of Energy and Mines
File formatpdf
ProvinceBritish Columbia
NTS104B/14; 104B/11
AreaHoodoo Mountain; Andrei Icefield; Andrei glacier; Iskut River; Twin Glacier River
Lat/Long WENS-131.2500 -131.0000 57.0000 56.6667
Subjectsgeochemistry; whole rock geochemistry; Pliensbachian; lithology; felsic volcanic rocks; mafic volcanic rocks; granites; dacites; basalts; tuffs; trace element geochemistry; hypabyssal rocks; Stikine assemblage; Stuhini Group; Hazelton Group; Mississippian; Triassic; Jurassic
Illustrationsgeochemical analyses
ProgramGEM: Geo-mapping for Energy and Minerals Multiple Metals - NW Canadian Cordillera (Yukon, B.C.)
AbstractCarboniferous to Jurassic rocks of the northwestern Stikinia commonly comprise thick successions of petrographically similar sedimentary, volcaniclastic and consanguineous hypabyssal rocks. The similarity of these sequences leads to ambiguity in correlations of units, hampering the establishment of a consistent stratigraphic framework in the predominantly ice and snow-covered Hoodoo Mountain area (NTS 104B/14; Figure 1). In addition, this part of Stikinia contains economically important, diverse and epoch specific metallotects that include; Carboniferous Kuroko type VHMS, Triassic Besshi type VMS, Triassic and Jurassic calcalkaline and
alkaline Cu-Au-Ag±Mo porphyry, skarn and vein deposits and Jurassic submarine exhalative Au-Ag-rich VMS mineralization. The majority of these deposits are either stratabound or directly related to short-lived magmatic events making stratigraphic position a critical
factor in understanding which deposit types are likely to be present. The purpose of this contribution is to test the utility of whole rock geochemistry to discriminate and calibrate the Mississippian to Pliensbachian stratigraphy proposed by Mihalynuk et al. (2011a; 2011b), thereby providing a means of directing cost effective and successful mineral exploration throughout the varied stratigraphy of the area.

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