کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5113122 | 1377915 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Extensive glacial advances during the Last Glacial Maximum near the eastern Himalayan syntaxis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Climatically, the eastern Himalaya are mainly controlled by the Indian Summer Monsoon (ISM) and important region for understanding the relationship between ISM and glacial change. This region is therefore useful for studies of the relation between glacial changes and ISM. Using a geomorpho-stratigraphic method combined with GIS, we investigated and mapped the outmost lateral-frontal moraine of the most extensive glaciations that occurred in the Basongcuo (BSC) catchment, near the eastern Himalayan syntaxis. Using optically stimulated luminescence (OSL) and 10Be surface exposure dating technique, we dated five boulders and 23 sediment samples. The resultant OSL and 10Be ages show that the region's glaciers were at their most extensive positions between â¼16 and 31 ka. Glacial coverage was 507.5Â km2, 9.9 times greater than it is today (51.5Â km2), with an equilibrium line altitude (ELA) depression of â¼690Â m. The rapidity with which the Last Glacial Maximum (LGM) glacial advance and retreat occurred suggests that temperature was the dominant control on glacial change.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Quaternary International - Volume 443, Part B, 10 July 2017, Pages 1-12
Journal: Quaternary International - Volume 443, Part B, 10 July 2017, Pages 1-12
نویسندگان
Gang Hu, Chaolu Yi, Jiafu Zhang, Guocheng Dong, Jinhua Liu, Xiangke Xu, Tao Jiang,