关于南国冰臼群成因的商榷

A DISCUSSION ON THE ORIGIN OF MOULINS IN SOUTH CHINA

南国冰臼群的确定 ,是在发现大量古冰川遗迹的基础上提出的。依据冰期气候地层法的分析、研究和对比 ,冰臼群大约形成于距今约 2～ 3百万年的第四纪早期。根据我国 2～ 2 4百万年考古学最新发现的旧石器的石质、岩石类型、保存条件等的对比 ,冰臼群历经 2～ 3百万年的沧桑 ,完全可以保存至今。以南国孓遗植物、更新世动植物群化石 ,和试图在冰臼中及砾石表面发现“钉头鼠尾”状擦痕的存在 ,来佐证“广东第四纪没有冰川发育的条件”、“广东没有古冰川发育的条件和证据” ,是子虚乌有的条件和证据。以“急流漩涡”和“滴水穿石”作为“壶穴”形成的原动力 ,是“阴错阳差” ,是“风牛马不相及” ,是世纪的大误会和失误。

The moulins in South China were determined,based on the discovery of many paleo-glacial remnants and the comparison of the moulins that had been found in China and abroad.The moulins were formed in early Quaternary, about 2～3 Ma B.P.,according to the study on climatic stratigraphy.It is considered that the moulins can be preserved for 2～3 Ma,as compared with the evidences newly-discovered in archaeology about the rock types and preserved conditions during the Old Stone Age,about 2～2 4 Ma B P. The Pleistocene flora and fauna fossils discovered in South China and the Lack of glacial Scratch on the surface of gravels and moulins do not prove that there were no any conditions for development of glacier in Guangdong Province in Quaternary.It is a mistake to take “torrent whirlpool” and “Water constantly dripping wears holes in stone” for explanation of the origin of the moulins in South China.