...I. S. Spooner; G. D. Osborn; R. W. Barendregt; E. Irving Abstract Mount Edziza is a Plio-Pleistocene volcanic complex that is located in the Stikine Terrane in northwestern British Columbia. A sequence of diamictites preserved between Ice Peak Formation basalts on the northwestern blank of Mount...

...Ian D. Clark; Peter Fritz; Jack G. Souther Abstract The Mount Edziza volcanic complex, a Recent volcano within British Columbia's northern Intermontane Belt, and the adjacent Mess Creek valley are investigated to evaluate the origin, geothermal history, and age of associated thermal waters. Samples...

...J. G. SOUTHER; R. L. ARMSTRONG; J. HARAKAL Abstract The late Cenozoic Mount Edziza Volcanic Complex covers an area of about 1,000 km 2 in north-central British Columbia, 300 km east of the transcurrent boundary between the North American and Pacific plates. It is made up of a group of overlapping...

...F. Aumento; J. G. Souther Abstract Seventeen specimens of Pliocene to Recent volcanic glass from Mount Edziza, British Columbia, were dated by the fission-track method. Results agree well with paleomagnetic, potassium–argon, carbon-14, and stratigraphic data, offering accurate dates with closer...

...Ian S. Spooner; Gerald D. Osborn; H. Barendregt; E. Irving Abstract In the Stikine River valley, northwestern British Columbia, glacial and nonglacial sediments are preserved beneath Middle Pleistocene basalt-flow remnants that originated from Mount Edziza. The magnetic polarity is consistently...

... ft (~0.38 m) per century. Few microearthquakes were observed. During three months of similar monitoring near Mount Edziza, B.C., only about 20 small earthquakes originated near the volcano, but approximately 8000 shocks with M ≤ 3 occurred west of the Stikine River near the Alaskan border. Only...

... province. They are found only in the central part of the province and include the Level Mountain, Mount Edziza, Heart Peaks, and Maitland volcanic complexes (Fig. 1) . At Level Mountain and Mount Edziza, the plateaus form a base for subsequent felsic lava domes and mafic and felsic lava flows ( Hamilton...

...Fig. 6. Compositions of glass from the lower Bob Quinn tephra and Holocene scoria from Mount Edziza and of rocks from the Iskut River volcanic field plotted on oxide variation diagrams (normalized values). Iskut River data from Russell and Hauksdóttir (2000) . ...

...Fig. 2. Examples of Pleistocene to Holocene volcanic edifices in the Canadian Cordillera. (A) Shield volcano and caldera of Mount Edziza (photo by B. Edwards). (B) “The Pyramid” lava dome from Mount Edziza (photo by B. Edwards). (C) Eve cone, a basaltic tephra cone (with associated lavas...

... ), and the frequently active Mount Edziza complex ( Souther 1992 a ). The AVB trends easterly across central BC from north of Vancouver Island to near Quesnel, BC. AVB volcanism is dominantly alkaline basaltic to peralkaline and has been interpreted to result from the North American plate sliding westward over...

... and include Dawson City, Whitehorse, Pleasant Camp, BC, and Dease Lake. From 1968–1972, 579 days of high-gain seismic recording ( Rogers 1976 , 1983 a ) was conducted within 30 km of Mount Edziza (most prominent volcano in the belt). Very little seismicity was detected in the volcanic belt, and none...

... and Canada ( C.A. Wood and J. Kienle , eds.). Cambridge University Press , Cambridge, U.K. ( 128 – 129 ). Souther , J.G. ( 1992 ): The late Cenozoic Mount Edziza volcanic complex, British Columbia . Geol. Surv. Can., Mem . 420 . Souther , J.G. & Hickson , C.J...

.... 1974 . Stratigraphy and paleomagnetism of the Mount Edziza volcanic complex, British Columbia . Geological Survey of Canada , Paper 73–72. Souther J.G. Yorath C.J. 1992 . Neogene assemblages . In Geology of the Cordilleran Orogeny in Canada . Edited by Gabrielse H. Yorath...

... of volcanoes or individual volcanoes. Columbia River basalts and Neogene forearc volcanic centers were not included in study. Volcano abbreviations: B—Mount Baker, G—Mount Garibaldi, CN—Chilcotin North, I—Mount Itcha, H—Hoodoo Mountain, E—Mount Edziza, C—Canyon Creek, A—Alligator Lake, V—Volcano Mountain, P...

... Belt; OMB, Omineca Belt. Abbreviations for alkaline volcanic centres: AL, Alligator Lake; BC, Big Creek; BR, Blue River; CT, Caribou Tuya; ED, Mount Edziza; HF, Hirschfeld; IS, Iskut–Unuk; JR, Jennings River; KM, Kawdy Mountain; LG, Llangorse; LI, Liard River; LM, Level Mountain; MC, Miles Canyon; MH...

... and CPC data sets in time, location, and numbers of paleopoles. The IMB–YTT paleopoles come from the ∼3 Ma Mount Edziza lavas ( Souther and Symons 1974 ), ∼4 Ma Level Mountain lavas ( Hamilton and Evans 1983 ), ∼7.5 Ma Cariboo mafic plugs ( Symons 1969 a ), and ∼11.5 Ma Cariboo lavas ( Symons 1969 c...