Geological Survey of Canada, Current Research (Online) no. 2005-A2

Download or read book Geological Survey of Canada, Current Research (Online) no. 2005-A2 written by K. Wetherell and published by Natural Resources Canada. This book was released on 2005 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The West Tuya lava field is located about 95 kilometres north-north-west of Dease Lake, British Columbia. This report presents an overview & summary of field work, geographic information system spatial analysis, and preliminary petrographic analysis conducted at the field in 2003-04. Highlights of this work include: identification of three sub-aerial shield volcanoes and their mineral composition; confirmation that mantle-derived peridotite inclusions are present at two of the volcanoes; and interpretation of the sub-aerial lava flows. The minimum and maximum volumes of material erupted are also estimated.