Constant-slope alluvial fans and source basins in Taiwan
Journal
Geology
Journal Volume
37
Journal Issue
9
Pages
787-790
Date Issued
2009
Author(s)
Abstract
Research Article| September 01, 2009 Constant-slope alluvial fans and source basins in Taiwan Zhou Lin; Zhou Lin 1Center for Spatial Information Science, University of Tokyo, Chiba 277-8568, Japan2Active Fault Research Center, National Institute of Advanced Industrial Science and Technology, Ibaraki 305-8567, Japan Search for other works by this author on: GSW Google Scholar Takashi Oguchi; Takashi Oguchi 1Center for Spatial Information Science, University of Tokyo, Chiba 277-8568, Japan Search for other works by this author on: GSW Google Scholar Yue-Gau Chen; Yue-Gau Chen 3Department of Geosciences, National Taiwan University, Taipei 106, Taiwan Search for other works by this author on: GSW Google Scholar Kyoji Saito Kyoji Saito 4Faculty of Education, Saitama University, Saitama 338-8570, Japan Search for other works by this author on: GSW Google Scholar Author and Article Information Zhou Lin 1Center for Spatial Information Science, University of Tokyo, Chiba 277-8568, Japan2Active Fault Research Center, National Institute of Advanced Industrial Science and Technology, Ibaraki 305-8567, Japan Takashi Oguchi 1Center for Spatial Information Science, University of Tokyo, Chiba 277-8568, Japan Yue-Gau Chen 3Department of Geosciences, National Taiwan University, Taipei 106, Taiwan Kyoji Saito 4Faculty of Education, Saitama University, Saitama 338-8570, Japan Publisher: Geological Society of America Received: 18 Nov 2008 Revision Received: 06 Apr 2009 Accepted: 09 Apr 2009 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2009 Geological Society of America Geology (2009) 37 (9): 787–790. https://doi.org/10.1130/G25675A.1 Article history Received: 18 Nov 2008 Revision Received: 06 Apr 2009 Accepted: 09 Apr 2009 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Zhou Lin, Takashi Oguchi, Yue-Gau Chen, Kyoji Saito; Constant-slope alluvial fans and source basins in Taiwan. Geology 2009;; 37 (9): 787–790. doi: https://doi.org/10.1130/G25675A.1 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 SocietyGeology Search Advanced Search Abstract We examined morphometric properties of alluvial fans and their source basins in Taiwan. Although studies elsewhere have found a decrease in alluvial-fan slope and basin slope with increasing basin area, the relatively large fans and source basins along the backbone of the Taiwan Central Range tend to have constant mean slopes of approximately 0.9° and 32°, respectively, with basin areas varying over the range 80–2900 km2. Smaller fans and source basins, mostly in lower areas away from the backbone of the range, have more varied slopes. The existence of the constant-slope fans and basins may reflect highly organized hillslope-channel systems that have formed under very rapid uplift and erosion. The systems are dominated by steep V-shaped valleys with similar hillslope angles and consistently high-gradient channels that enable efficient sediment flushing. This leads to similar ratios of sediment discharge to runoff and similar sediment grain sizes irrespective of basin area, resulting in alluvial fans with similar slopes. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Type
journal article