Quaternary glacio-erosional landforms in Laoshan Mountain and their constraints on the origin of Jiaozhou Bay, Qingdao, east of China

LU Hongbo; YAN Shiyong; ZHANG Yue

首页> 中文期刊> 《中国海洋湖沼学报（英文版）》 >Quaternary glacio-erosional landforms in Laoshan Mountain and their constraints on the origin of Jiaozhou Bay, Qingdao, east of China

Quaternary glacio-erosional landforms in Laoshan Mountain and their constraints on the origin of Jiaozhou Bay, Qingdao, east of China

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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 landlorms 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 tjord 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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《中国海洋湖沼学报（英文版）》 |2007年第2期|139-148|共10页
作者
LU Hongbo; YAN Shiyong; ZHANG Yue;
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作者单位

Department of Earth Sciences,China University of Petroleum,Dongying,257062,China;

Department of Earth Sciences,China University of Petroleum,Dongying,257062,China;

Library of China University of Petroleum,Dongying,257062,China;

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原文格式 PDF
正文语种 chi
中图分类海洋学;
关键词
Quaternary glaciation; landform; Mount Laoshao; Jiaozhou bay; Eastern China;

机译：第四纪冰川;地貌;老少山;胶州湾;

Quaternary glacio-erosional landforms in Laoshan Mountain and their constraints on the origin of Jiaozhou Bay, Qingdao, east of China

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