| Title | Overview 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 |
| Download | Downloads |
| Author | Edwards, B R; Evanchick, C A; McNicoll, V J; Wetherell, K; Nogier, M |
| Source | Geological Survey of Canada, Current Research (Online) no. 2006-A3, 2006, 12 pages; 1 CD-ROM, https://doi.org/10.4095/221945 (Open Access) |
| Image |  |
| Year | 2006 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | on-line; CD-ROM; digital |
| File format | pdf (Adobe Acrobat Reader) |
| Province | British Columbia |
| NTS | 104A/13; 104A/14 |
| Area | Bell-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 |
| Subjects | regional 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 |
| Illustrations | sketch maps; tables; photographs; geochemical plots; plots; inverse-isochron diagrams |
| Program | Integrated Petroleum Resource
Potential and Geoscience Studies of the Bowser and Sustut Basins |
| Program | Northern Resources Development Program |
| Released | 2006 04 01 |
| Abstract | Fourteen 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. |
| GEOSCAN ID | 221945 |
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