摘要
在塔里木盆地北缘草湖２＃井下近６０００ｍ处的巴楚组下段发现了胴甲鱼类化石，根据这些材料，认为该段的时代为晚泥盆世，与其相当的东河砂岩时代也应属晚泥盆世。
On the basis of detailed survey in the field and the results of indoor analysis this paper mainly deals with the geomorphic,lithologic,magnetic and chronologic stratigraphy of the vermicular red earth in Xiushui,Jiangxi Its forming age and genesis and the correlation with the Northern loess are also discussed in detail and following conclusions are drawn: 1) The vermicular red earth is divided into two lithologic members and each member consists of beds with alternating close and rare vermicular mottles The vermicular red earth and its underlying sandy gravel bed belong to the same age; 2) Both the close vermicular mottle beds and paleosoil beds in loess have the same geological significance; 3) The vermicular red earth was formed from the end of early Pleistocene (about 0.9Ma B.P.) to the beginning of late Pleistocene (about 0.1Ma B.P); 4)The vermicular red earth was easily developed in the warm and humid areas with shallow-buried underground water,indentation terrene and bad drainage.
出处
《地层学杂志》
CSCD
北大核心
1997年第3期224-225,共2页
Journal of Stratigraphy
关键词
塔里木盆地
胴甲类
晚泥盆世
砂岩
胴甲鱼化石
vermicular red earth, Quaternary, stratigraphy, Xiushui county, Jiangxi
