Geological Society, London, Special Publications The Spokane Flood debates: historical background and philosophical perspective Victor R. Baker Geological Society, London, Special Publications 2008; v. 301; p. 33-50 doi:10.1144/SP301.3 Email alerting click here to receive free email alerts when new articles cite this service article Permission click here to seek permission to re-use all or part of this article request Subscribe click here to subscribe to Geological Society, London, Special Publications or the Lyell Collection Notes Downloaded by on 18 August 2008 © 2008 Geological Society of London The Spokane Flood debates: historical background and philosophical perspective VICTOR R. BAKER Department of Hydrology and Water Resources, The University of Arizona, Tucson, AZ 85721–0011, USA (e-mail:
[email protected]) Abstract: The 1920s–1930s debates over the origin of the ‘Channeled Scabland’ landscape of eastern Washington, northwestern USA, focused on the cataclysmic flooding hypothesis of J Harlen Bretz. During the summer of 1922, Bretz began leading field parties of advanced University of Chicago students into the region. In his first paper, published in the Bulletin of the Geological Society of America, Bretz took special care not to mention cataclysmic origins. However, in a subsequent paper in the Journal of Geology, to the editorial board of which he had recently been added, Bretz formally described his hypothesis that an immense late Pleistocene flood, which he named the ‘Spokane Flood’, had derived from the margins of the nearby Cordilleran Ice Sheet. This cataclysm neatly accounted for numerous interrelated aspects of the Channeled Scabland landscape and nearby regions.