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TitleGeology of the north and mid-coast regions, British Columbia. (parts of NTS 103-A, -G, -H, -I, and -J)
AuthorNelson, J L; Diakow, L J; Mahoney, J B; Gehrels, G E; van Staal, C R; Karl, S; Pecha, M; Angen, J J
SourceGeological Survey of Canada, Open File 7604, 2014, 2 sheets, (Open Access)
LinksOnline - En ligne (B.C. Geological Survey Open File 2014-3)
Alt SeriesBritish Columbia Geological Survey, Geoscience Map 2014-3
PublisherNatural Resources Canada
PublisherBritish Columbia Ministry of Energy, Mines and Natural Gas
Documentopen file
Maps2 maps
Map Info.geological, structural, lithological, 1:150,000
Mediaon-line; digital
File formatpdf
ProvinceBritish Columbia
NTS103A; 103G/08; 103G/09; 103G/16; 103H/01; 103H/02; 103H/04; 103H/04; 103H/05; 103H/06; 103H/07; 103H/11; 103H/12; 103H/13; 103I/04; 103J/01; 103J/02
AreaPorcher Island; Kennedy Island; Smith Island; Pitt Island; McCauley Island; Gurd Island; Banks Island; Gribbell Island; Farrant Island; Grenville Channel; Prescott Island; Princess Royal Island
Lat/Long WENS-130.6667 -128.0000 54.2000 52.3000
Subjectsstructural geology; stratigraphy; geophysics; metallic minerals; geochronology; bedrock geology; lithology; metamorphic rocks; volcanic rocks; structural features; faults; mineralization; gold; uranium lead dates; Eocene; magmatism; Neogene; Alexander Terrane; Mathieson Channel Formation; Central Gneiss Complex; Exstall Belt; Scotia Quaal Belt; Porcher Formation; Kynoch Suite; Ecstaal Suite; Captain Cove Suite; McCauley Suite; Banks Island Suite; Sweede Point Suite; Ogden Channel Intrusive Complex; Big Falls Orthogneiss; Gravina Belt; Moffat volcanics; Kumealon unit; Karmutsen Group; Yukon-Tanana Terrane; Grenville Channel fault; Principe Laredo fault; Coast Plutonic Complex; Tertiary; Cretaceous; Jurassic; Permian; Mississippian; Devonian; Silurian; Ordovician; Cambrian; Triassic; Quaternary
ProgramWestern Cordillera Project Management, GEM2: Geo-mapping for Energy and Minerals
Released2014 12 02
This set of two 1:150,000 sheets includes the westernmost Coast Mountains, the Inside Passage and surrounding islands between Porcher Island and Klemtu. The area is underlain by metamorphosed rocks of the Alexander terrane, which are intruded by eastward-younging Late Jurassic to Paleocene plutonic belts of the Coast Plutonic Complex. This work has subdivided the Alexander terrane in coastal northwestern British Columbia for the first time, and has demonstrated correlations with better-known exposures in southeastern Alaska and the St. Elias Range. It also assigns intrusive bodies to plutonic suites, based on new U-Pb geochronology.
Mapping between 2008 and 2012 was supported by the Natural Resources Canada Geoscience for Energy and Minerals Program, Multi-metals Northwest Cordillera Project (Geological Survey of Canada) and the British Columbia Geological Survey.
Summary(Plain Language Summary, not published)
Regional bedrock geology map of north and mid-coast areas of British Columbia with map legend.