河南内乡夏馆—高丘盆地的夏馆组及其时代

Xiaguan Formation and its era of Xiaguan-Gaoqiu Basin,in Neixiang county, Henan province

夏馆—高丘盆地的红层时代,根据目前已有恐龙蛋、孢粉、轮藻与盆地发展史及邻区同位素年龄资料综合分析,归属晚白垩世早期或中—早期比较合适。按照"中国地层指南"的规定,建议恢复和正式使用夏馆组一名,废弃高沟组、马家村组、桑坪组等名称,并不需再建新的岩石地层单位。河南西南部的众多盆地内的红层时代基本上属于晚白垩世。

Based on a comprehensive analysis of the information of the fossile dinosaur eggs, spores, algae in the area and the history of the basin evolution and isotope ages of neighbouring regions, it is appropriate to identify the red strata era of Xiaguan-Gaoqiu Basin as the early or middle-early stage of Cretaceous. Following China Strata Guideline, the authors suggest that the term Xiguan Formation should be used instead of Gaogou Formation? Majiacun Formation and Sangping Formation. It is unnecessary to establish other new units for the red strata in this area. Most of the red strata which appeared in the basins of southwest Henan Province were formed during late Cretaceous.