板溪群研究的动向与亟待解决的问题  

The Current Reseach Tendency and the Key Problems of the Banzi Group in South China

作　　者：李曰俊[1] 郝杰[1] 刘鸿允[1] 

机构地区：[1]中国科学院地质研究所,北京100029

出　　处：《湖南地质》1993年第1期8-10,14,共4页Hunan Geology

摘　　要：按多重地层划分原则,板溪群作为雪峰一武陵山区上元古界的一个岩石地层单位,已为多数学者所接受。但80年代以来,许靖华教授提出了中生代板溪蛇绿混杂岩的观点,引起国内外学者的关注。产生分歧的根本原因是对板溪群地层学涵义的认识不一致;当前板溪群研究存在如下亟待解决的问题:1)板溪群地层学涵义的混乱;2)关于板溪地层性质的认识分歧;3)关于板溪群时代归属的不同认识。It has been widely accepted that Banxi group is an upper Precambrian lithos-tratigraphic unit in Xuefeng-Wuling mountain area. But K. J. Hsu et al and his cooperaters reinter-preted it, in 1980s, as “Banxi melange” which was formed during the Mesozoic Collision orogenesis between Yangtze and Huanan blocks according to their opinion. This reinterpretation attracted the different opinions. The related problems demanding prompt solution are: (1)the confusions between the different concepts of the Banxi group; (2)the different interpretations about the stratigraphic property of the Banxi group; (3)the different viewpoints about the age and regional correlation of the Banxi group.

关 键 词：板溪群 板溪混杂岩 地层 湖南 

分 类 号：P535.264[天文地球—古生物学与地层学]