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中国地质编辑室: 许多学者把第四纪统一划分为全新统(Q_4)及上、中、下更新统(Q_3、Q_2、Q_1),绝对年划大约为100万年。但近来有些学者或书刊,对年代划分确有出入。例如,刘东生等先生在一九六二年《中国地质》第6期发表的《气候标志及中国第四纪地层的划分》一文中,认为“第四纪的特点,其中一点就是时期较短(100—200万年)”……。为此,
China Geological Editorial Office: Many scholars divide the Quaternary into the Holocene (Q_4) and the upper, middle and lower Pleistocene (Q_3, Q_2, Q_1) with an absolute annual plan of about 1,000,000 years. Recently, however, some scholars or books and periodicals do differ from each other. For example, Liu Dongsheng et al. In his article “Division of Climate Indicators and Quaternary Stratigraphy of China,” issued in the 6th issue of China Geology in 1962, considered “the characteristics of the Quaternary. One of the features is the short period 100-200 million years) ”....... to this end,