Abstract
During the last 2000 years, several alluvial fans were formed along the upper reach of the Lan-Yang River, northeastern Taiwan. They were subsequently undercut into different levels of river terraces. Slope profiles of the river terraces were measured in the field to study the evolution of the terrace scarps. River terraces can be chronologically correlated by morphological dating according to the proposed diffusion equation model and scarp retreat model. Evolution of the longitudinal profiles of the Lan-Yang River and its tributaries was reconstructed based on the correlation scheme of the river terraces. The model of evolution suggests that changes in the local base level of erosion play an important role in the formation of the river terraces. The local base level elevation changed as a result of alluvial fan deposition, rather than tectonic uplift or climatic changes.
| Original language | English |
|---|---|
| Pages (from-to) | 331-348 |
| Number of pages | 18 |
| Journal | Journal of the Geological Society of China |
| Volume | 42 |
| Issue number | 3 |
| Publication status | Published - 1999 Aug 1 |
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All Science Journal Classification (ASJC) codes
- Geology
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Evolution of river terraces along the Lan-Yang River, northeastern Taiwan : A river response to base level change. / Sung, Quo Cheng; Fu, Jong Kwei; Chyi, Shih Jan; Tsai, Heng.
In: Journal of the Geological Society of China, Vol. 42, No. 3, 01.08.1999, p. 331-348.Research output: Contribution to journal › Article
TY - JOUR
T1 - Evolution of river terraces along the Lan-Yang River, northeastern Taiwan
T2 - A river response to base level change
AU - Sung, Quo Cheng
AU - Fu, Jong Kwei
AU - Chyi, Shih Jan
AU - Tsai, Heng
PY - 1999/8/1
Y1 - 1999/8/1
N2 - During the last 2000 years, several alluvial fans were formed along the upper reach of the Lan-Yang River, northeastern Taiwan. They were subsequently undercut into different levels of river terraces. Slope profiles of the river terraces were measured in the field to study the evolution of the terrace scarps. River terraces can be chronologically correlated by morphological dating according to the proposed diffusion equation model and scarp retreat model. Evolution of the longitudinal profiles of the Lan-Yang River and its tributaries was reconstructed based on the correlation scheme of the river terraces. The model of evolution suggests that changes in the local base level of erosion play an important role in the formation of the river terraces. The local base level elevation changed as a result of alluvial fan deposition, rather than tectonic uplift or climatic changes.
AB - During the last 2000 years, several alluvial fans were formed along the upper reach of the Lan-Yang River, northeastern Taiwan. They were subsequently undercut into different levels of river terraces. Slope profiles of the river terraces were measured in the field to study the evolution of the terrace scarps. River terraces can be chronologically correlated by morphological dating according to the proposed diffusion equation model and scarp retreat model. Evolution of the longitudinal profiles of the Lan-Yang River and its tributaries was reconstructed based on the correlation scheme of the river terraces. The model of evolution suggests that changes in the local base level of erosion play an important role in the formation of the river terraces. The local base level elevation changed as a result of alluvial fan deposition, rather than tectonic uplift or climatic changes.
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M3 - Article
AN - SCOPUS:0033504827
VL - 42
SP - 331
EP - 348
JO - Journal of the Geological Society of China
JF - Journal of the Geological Society of China
SN - 1018-7057
IS - 3
ER -