| Quaternary glacio-erosional landforms in Laoshan Mountain and their constraints on the origin of Jiaozhou Bay, Qingdao, east of China |
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| 作者姓名： | 吕洪波 颜世永 张跃 |
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| 作者单位： | Department of Earth Sciences China University of Petroleum，Department of Earth Sciences China University of Petroleum，Library of China University of Petroleum，Dongying 257062 China，Dongying 257062 China，Dongying 257062 China |
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| 基金项目： | Doctorate Research Program of China University of Petroleum (No. Y020109) |
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| 摘 要： | A field investigation on Quaternary glacial landforms in Laoshan Mountain has discovered many glacial potholes, scouring grooves on top of granite ridges, and large boulders. These erosional landforms were formed by the meltwater from the overlying ice cap, suggesting that there was at least an ice cap covering Laoshan Mountain and the surrounding areas or even a continental ice sheet over the vast area of Shandong Province in the Late Pleistocene. The ice sheet was obstructed by the Laoshan Mountain, Dazhu Mountain and Xiaozhu Mountain in the coastal areas as it moved toward the Yellow Sea. The ice flows eroded the bedrock and carved the weak intersection of the fault systems in the NE and NW directions into a deep channel, which gradually formed a fjord in the area of the Jiaozhou Bay basin by 20.00 ka BP. The seawater gradually invaded the fjord from the beginning of the Holocene (11.00 ka BP) and Jiaozhou Bay was eventually formed. Similar fjords are easily found along the east of China and they share a similar origin because of the Quaternary glaciation in the region.
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| 关 键 词： | 第四季冰川侵蚀 地貌 青岛 胶洲湾 崂山 中国东部地区 |
| 收稿时间： | 2006-11-14 |
| 修稿时间： | 2007-02-06 |
Quaternary glacio-erosional landforms in Laoshan Mountain and their constraints on the origin of Jiaozhou Bay,Qingdao, east of China |
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| Lu?Hongbo,Yan?Shiyong,Zhang?Yue.Quaternary glacio-erosional landforms in Laoshan Mountain and their constraints on the origin of Jiaozhou Bay, Qingdao, east of China[J].Chinese Journal of Oceanology and Limnology,2007,25(2):139-148. |
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| Authors: | Lu Hongbo Yan Shiyong Zhang Yue |
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| Institution: | (1) Department of Earth Sciences, China University of Petroleum, Dongying, 257062, China;(2) Library of China University of Petroleum, Dorgying, 257062, China |
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| Abstract: | A field investigation on Quaternary glacial landforms in Laoshan Mountain has discovered many glacial potholes, scouring grooves on top of granite ridges, and large boulders. These erosional landforms were formed by the meltwater from the overlying ice cap, suggesting that there was at least an ice cap covering Laoshan Mountain and the surrounding areas or even a continental ice sheet over the vast area of Shandong Province in the Late Pleistocene. The ice sheet was obstructed by the Laoshan Mountain, Dazhu Mountain and Xiaozhu Mountain in the coastal areas as it moved toward the Yellow Sea. The ice flows eroded the bedrock and carved the weak intersection of the fault systems in the NE and NW directions into a deep channel, which gradually formed a fjord in the area of the Jiaozhou Bay basin by 20.00 ka BP. The seawater gradually invaded the fjord from the beginning of the Holocene (11.00 ka BP) and Jiaozhou Bay was eventually formed. Similar fjords are easily found along the east of China and they share a similar origin because of the Quaternary glaciation in the region. |
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| Keywords: | Quaternary glaciation landform Mount Laoshao Jiaozhou bay Eastern China |
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