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TitleOverview of the volcanology of the Bell-Irving volcanic district, northwestern Bowser Basin, British Columbia: new examples of mafic alpine glaciovolcanism from the northern Cordilleran volcanic province
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorEdwards, B R; Evanchick, C A; McNicoll, V J; Wetherell, K; Nogier, M
SourceGeological Survey of Canada, Current Research (Online) no. 2006-A3, 2006, 12 pages; 1 CD-ROM, Open Access logo Open Access
PublisherNatural Resources Canada
Mediaon-line; CD-ROM; digital
File formatpdf (Adobe Acrobat Reader)
ProvinceBritish Columbia
NTS104A/13; 104A/14
AreaBell-Irving River; Craven Lake; Hodder Creek; Owl Creek; Column Creek; Rochester Creek; Craven Creek
Lat/Long WENS-130.0000 -129.0000 57.0000 56.7500
Subjectsregional geology; igneous and metamorphic petrology; geochronology; Pleistocene; volcanology; volcanism; igneous rocks; volcanic rocks; pillow lavas; volcaniclastics; helicopter reconnaissance; photography; radiometric dating; argon argon dates; glaciation; glaciers; geochemical analyses; alkalinity; silica; peridotites; xenoliths; Bell-Irving volcanic district; Bowser Basin; northern Cordilleran volcanic province; Bell-Irving volcanic centre; Craven Lake volcanic centre; Cenozoic; Quaternary
Illustrationssketch maps; tables; photographs; geochemical plots; plots; inverse-isochron diagrams
ProgramIntegrated Petroleum Resource Potential and Geoscience Studies of the Bowser and Sustut Basins
ProgramNorthern Resources Development Program
Released2006 04 01
AbstractFourteen previously undescribed volcanic occurrences were documented from the westcentral Bowser Basin, in northern British Columbia, and have been assigned to the Bell-Irving volcanic district. Thirteen of the areas were briefly surveyed during aerial reconnaissance, while the fourteenth was mapped and described during three days of fieldwork in August of 2004. All fourteen areas contained deposits of pillow lavas and/or volcaniclastic rocks and were interpreted as products of Pleistocene, alpine
glaciovolcanic eruptions. Samples from Craven Lake volcanic centre are basanites. A sample from the Bell-Irving River volcanic centre was dated by 40Ar-39Ar to be 0.43 ± 0.15 Ma, consistent with the interpretation that the deposits formed via interaction with Pleistocene ice. The Bell-Irving volcanic district is considered to be part of the northern Cordilleran volcanic province.

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