Bedrock channel morphology

Research Article| September 01, 2001 Bedrock channel morphology Ellen E. Wohl; Ellen E. Wohl 1Department of Earth Resources, Colorado State University, Fort Collins, Colorado 80523-1482, USA Search for other works by this author on: GSW Google Scholar David M. Merritt David M. Merritt 1Department of Earth Resources, Colorado State University, Fort Collins, Colorado 80523-1482, USA Search for other works by this author on: GSW Google Scholar GSA Bulletin (2001) 113 (9): 1205–1212. https://doi.org/10.1130/0016-7606(2001)113<1205:BCM>2.0.CO;2 Article history received: 08 Mar 2000 rev-recd: 16 Feb 2001 accepted: 02 Mar 2001 first online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Ellen E. Wohl, David M. Merritt; Bedrock channel morphology. GSA Bulletin 2001;; 113 (9): 1205–1212. doi: https://doi.org/10.1130/0016-7606(2001)113<1205:BCM>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Analyses of 41 bedrock channel reaches indicate quantifiable relationships between bedrock channel morphology and reach- scale hydraulic and substrate variables. Discriminant analysis was used to develop a discriminant criterion based on reach-averaged channel gradient, substrate heterogeneity, and Selby rock-mass strength. This criterion correctly classified 70% of the observations into one of five channel morphologic types. Channels formed at higher gradients have a morphology that effectively maximizes the erosional force, whereas a morphology that evenly distributes flow energy or dissipates flow energy internally is associated with lower gradients. These results suggest that bedrock channel morphology, like alluvial channel morphology, reflects a quantifiable balance between hydraulic driving and substrate resisting forces. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.