崂山冰臼之质疑  

QUERIES ABOUT THE GLACIAL POTHOLES OF MOUNTAIN LAOSHAN, CHINA

作　　者：王为[1] 周尚哲[1] 李炳元[2] 解波[1] 冯小珍[1] 

机构地区：[1]华南师范大学地理科学学院地貌与区域环境研究所,广州510631 [2]中国科学院地理科学与资源研究所,北京100101

出　　处：《第四纪研究》2011年第5期917-932,共16页Quaternary Sciences

基　　金：国家自然科学基金项目(批准号:40871020);广东省自然科学基金项目(批准号:7005836)资助

摘　　要：作者在2010年7月间考察了被认为是"中国东部沿海低海拔古冰川地貌保留完好"的崂山地区。考察结果显示崂山的地貌是正常的花岗岩地貌,并不是古冰川遗留的地形,崂山的冰臼不过是花岗岩地区常见的风化坑。本文将崂山风化坑与国外相关研究对比,列举了崂山冰臼不是冰臼的证据,对山顶冰臼形成理论提出了疑问,同时也回答了对风化坑形成的质疑。中国东部山顶冰臼是国内个别学者对国际上早已解决的科学问题产生的误解。granite China. July of 2010, the authors made a field investigation of Mountain Laoshan, which is composed of Mesozoic with its highest peak rising 1133 meters above sea level and is located on the shore of the Yellow Sea, The granite landforms of Mountain Laoshan have recently been considered as those created by the action of Quaternary glaciers in East China and well preserved. The critical evidence of the existence of the ancient Laoshan glaciers is the pits of various size apertures found on the rock surfaces of Mountain Laoshan. The pits from high altitude to low altitude of the mountain are interpreted as glacial potholes. In the investigation the features of the so-called glacial potholes were examined and the morphological parameters of them were measured as well. In this paper,a comparison of the differences in morphological features is made between the pits found in Mountain Laoshan and the true glacier potholes in other places of the world, showing that the so-called glacial potholes of Mountain Laoshan do not have the features created by subglacial fluvial erosion but have all the features a weathering pit should have, such as flat bottom, spill way, over hanging sides and so on. This paper enumerates a series of self-contradictory statements about the glacier pothole formation in Mountain Laoshan and other places of China made by the supporters of Quaternary glaciers in East China. This paper also replys to questions about weathering pit formation which are raised by the same persons and points out that the main cause for mistaking weathering pits for glacial potholes is a lack of geomorphologic knowledge to distinguish weathering and erosion processes, which includes the stream erosion and subglacial fluvial erosion. The conclusion is made that the so-called glacial potholes in Mountain Laoshan are nothing but weathering pits as generally found in other granite areas around the world and then the present landforms of Mountain Laoshan are not originated from glaciers. The so-called glacial potholes

关 键 词：风化坑 冰臼 花岗岩 风化作用 崂山 

分 类 号：P642[天文地球—工程地质学]