Geomorphic features of Quaternary glaciation in the Taniantaweng Mountain, on the southeastern Qinghai-Tibet Plateau
Geomorphic features of Quaternary glaciation in the Taniantaweng Mountain, on the southeastern Qinghai-Tibet Plateau
复制标题
DOI：
10.1007/s11629-018-4977-3
复制
发表时间：
2019-02
影响因子：
2.5
通讯作者：
Wei Zhang;L. Chai;I. Evans;Liang Liu;Ya-peng Li;Jing-ru Qiao;Qian Tang;Bo Sun
中科院分区：
文献类型：
--
作者：
Wei Zhang;L. Chai;I. Evans;Liang Liu;Ya-peng Li;Jing-ru Qiao;Qian Tang;Bo Sun
位于青藏高原东南部与云贵高原过渡带的塔念塔山第四纪冰川多次波动的地貌证据。为了重建第四纪冰川期冰川演化的历史，我们提供了一个~13000平方公里的地貌图（1：440,000）的第四纪冰川，以及三个电子自旋共振（ESR）年龄和三个光释光（OSL）年龄的地貌。通过整合这些与年龄从以前的研究中，四个主要的冰川进步确定在海洋氧同位素阶段（MIS）6，3，2和1。这一冰川年代学与横断山脉其他地区及周围山脉现有的冰川年代学相吻合。在冰川最大推进期间（MIS 6），冰川已延伸至玉曲河，但从MIS 3到MIS 1，冰川逐渐受到限制。青藏高原东南部末次冰期的冰川分布表明，南亚季风带来的降水可能是青藏高原东南部末次冰期冰川前进的主要驱动力。
We present geomorphological evidence for multiple glacial fluctuations during the Quaternary in the Taniantaweng Mountain, which is situated at the transition zone of the southeastern Qinghai-Tibet Plateau and the Yunnan-Guizhou Plateau. To reconstruct the history of glacial evolution during the Quaternary Glaciation, we present a ~13000 km2 geomorphologic map (1:440,000) for the Quaternary glaciations, as well as three electron spin resonance (ESR) ages and three optically stimulated luminescence (OSL) ages from the landforms. By integrating these with ages from previous studies, four major glacial advances are identified during marine oxygen isotope stages (MIS) 6, 3, 2 and 1. This glacial chronology is in reasonable agreement with existing glacial chronologies from other parts of the Hengduan Mountains and surrounding mountains. Glaciers had extended to the Yuqu River during the glacial maximum advance (MIS 6), but became successively more restricted from MIS 3 to MIS 1. The glacial distribution show that precipitation brought by the south Asian monsoon might play a primary role in driving glacial advances during the last glacial period in the southeastern Qinghai-Tibet Plateau.