Periglacial landforms in the high mountains of Taiwan
Abstract
Glacial relicts and glacial landforms in the north-central Taiwan have been pointed out as early as 30s of the 20th century. Recent findings of the striated boulders and bedrocks, glacial trough valley, and cirque in the Hsueshan, the Hohuanshan, the Nanhutashan, the Yushan, and the Chiaming Lake area have confirmed the existence of glacial relicts and landforms in the in the central and south-central high mountains of Taiwan. Variation of periglacial landforms and features such as irregular depressions, patterned ground, angular frost-shattered bedrock protuberances, and smoothing of slopes through processes of creeping and solifluction are highly dependent on differences of lithology. Since the retreat of the last glaciations, the periglacial processes have been acting and modifying already-existing glacial landforms in the high ground of Taiwan.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2011
- Bibcode:
- 2011AGUFM.C53D0714C
- Keywords:
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- 1209 GEODESY AND GRAVITY / Tectonic deformation;
- 8010 STRUCTURAL GEOLOGY / Fractures and faults;
- 8168 TECTONOPHYSICS / Stresses: general;
- 4302 NATURAL HAZARDS / Geological