韩同林的“冰臼论”是对花岗岩类岩石“负球状风化”的误解  

Comments on the Moulin Argument Provided by Mr. HAN Tonglin,a Misunderstanding of Granite Negative Spheroidal Weathering

作　　者：施雅风[1,2] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所,兰州730000 [2]中国科学院南京地理与湖泊研究所,南京210008

出　　处：《地质论评》2010年第3期349-354,共6页Geological Review

摘　　要：韩同林著《发现冰臼》英文书名Moulin Discovered,将花岗岩类地区大量出现与节理有关的小型臼状地形统称为冰臼,即Moulin,并指为古冰盖的遗迹,以之反推所有臼状地形区均是两、三百万年前全球泛大冰盖所遗留的地质现象。笔者假韩著中丰富图片与记述,对照文献研究,认为冰川区罕见,只有死冰区可能存在的冰臼不可能生成上述臼状地形。这种空间尺度为厘米级至米级的臼状地形,应是花岗岩类地区与节理有关的负球状风化(Negative spheroidal weathering)与风、水协力作用的结果。少量臼底堆积热释光测年证明,这一过程是冰期后即不超过10ka的时段里进行的。韩同林大力宣传其错误的冰臼论,影响读者盲目相信过于夸大的第四纪冰川分布范围,并导致旅游部门广泛布置第四纪冰川景点,对社会舆论和旅游文化产生了不良误导作用。In a book tilted ＂Moulin Discovered＂ （English version）, Mr. Tonglin Han classified all small granite potholes, hollows and depressions developed along the joints as moulins. He recognises all these moulins are the relict landforms of paleo-icesheet and deducted that all moulins were formed by global pan-icesheets occurred 2～3 million years ago. The present paper, based on the abundant photos and descriptions of these moulins from Han＇s book, together with comparison with literatures, argues that moulins, commonly occurred at dead-ice region as potholes, are rare in glacial regions. This type of pothole-like landforms in the scales between centimeter and meter should be the results of negative spheroidal weathering in granite rocks, and related to the geological structure of joints and co-work of winds and water dynamics. Thermoluminescence dating on some materials from the bottom of the moulins indicates that these deposits are younger than 10 ka of the postglacial age. Han has forcefully spreads his wrong ＂moulin＂ theory, which has misled readers to blindly believe larger distribution of Quaternary glaciers in China, influenced some tourism administrations setting up numerous sites as Quaternary glacier sceneries, and has wrong affected our social cultures today.

关 键 词：冰臼(moulin)论 小型臼状地形 负球状风化 花岗岩类岩石 

分 类 号：P588.121[天文地球—岩石学]