CGRG Bibliography of Canadian Geomorphology
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Author : Edwards, B.R.; Hamilton, T.S.; Nicholls, J.; Stout, M.Z.; Russell, J.K.; and Simpson, K.
Date : 1996
Title : Late Tertiary to Quaternary volcanism in the Atlin area, British Columbia
Publication : Current Research 1996-A, Geological Survey of Canada
Issue :
Page(s) : 29-36
Abstract
We extend the previous descriptions and report preliminary interpretations for age constraints based on field data for several occurrences of Late Tertiary to Quaternary volcanic deposits in the Atlin area: Ruby Mountain, Cracker Creek, Volcanic Creek, Llangorse Mountain, and Chikoida Mountain. The deposits include a collection of extensively eroded feeder pipes (Chikoida), a tall, columnar-jointed vent plug or vent proximal lava flow (Llangorse), isolated cinder cones with associated lava flows (Cracker and Volcanic creeks), and a partly eroded stratovolcano (Ruby Mountain). The volcanic products at two localities, Ruby and Chikoida mountains, contain crustal xenoliths. Peridotite zenoliths are present at five localities. Two of the deposits, Volcanic and Cracker creeks, appear to be postglacial, whereas Ruby and Llangorse mountains have undergone moderate glacial modification. An approximate age for the bodies exposed at Chikoida Mountain is indeterminate but they appear to have been extensively glaciated.
Bibliography of Canadian Geomorphology