Late Quaternary mass-wasting records and formation of fan terraces in the Chen-yeo-lan and Lao-nung catchments, central-southern Taiwan》.pdfVIP

Quaternary Science Reviews 29 (2010) 1399–1418 Contents lists available at ScienceDirect Quaternary Science Reviews journal homepage: www.els /locate/quascirev Late Quaternary mass-wasting records and formation of fan terraces in the Chen-yeo-lan and Lao-nung catchments, central-southern Taiwan Meng-Long Hsieh a, *, Shyh-Jeng Chyi b a Earth Dynamic System Research Center, National Cheng Kung University, No. 1, Ta-Hsueh Rd., Tainan, Taiwan ROC b Department of Geography, National Kaohsiung Normal University, Taiwan ROC a r t i c l e i n f o a b s t r a c t Article history: Development of fan terraces in incision-dominated river settings documents episodic increases of Received 21 May 2008 sediment supply from upland catchments. In the non-glaciated, active mountains of Taiwan, such Received in revised form increases in sediment supply result typically from increases in landslide/debris flow activity. Studying fan 16 September 2009 terraces, therefore, helps understand the history and nature of mass-wasting processes eroding the Accepted 5 October 2009 mountains. This study explores fan-terrace successions developed at tributary mouths of the Chen-yeo- lan and Lao-nung Rivers in central-southern Taiwan. Judging from the spatial variations of sizes, heights, sequences and sedimentation of the fan terraces, the magnitude and frequen