豫西南—鄂西北一带恐龙蛋化石演化序列与环境变迁  

Evolutionary Series of Dinosaur Eggs and Environmental Changes in Southwestern Henan-Northwestern Hubei

作　　者：方晓思[1] 程政武[2] 张志军[1] 庞其清[3] 韩迎建[1] 谢宏亮 李佩贤[2] 

机构地区：[1]中国地质博物馆,北京100034 [2]中国地质科学院地质研究所,北京100037 [3]石家庄经济学院,河北石家庄050031 [4]河南西峡县文化局,河南西峡474500

出　　处：《地球学报》2007年第2期97-110,共14页Acta Geoscientica Sinica

基　　金：中国地质调查局项目(编号:200413000025)资助。

摘　　要：中生代末期在秦岭大背斜的南翼发育了一系列北西-南东向构造凹陷,它们分别座落在河南的西峡-内乡、淅川、湖北的郧县一带,由北向南依次为:桑坪-夏馆盆地、西坪-赤眉盆地、淅川滔河盆地、郧县-郧西盆地。根据豫西南-鄂西北地区蛋化石地层分布规律,可揭示出秦岭东端伏牛山南部地区白垩纪构造盆地是由北向南依次形成,盆地基底时代由北向南呈阶梯状逐渐变新。In Late Mesozoic there developed a series of NW-SE trending tectonic basins on the southern limb of anti- clines of the Qinling Mountains. They were located in Xixia-Neixiang and Xichuan of Henan Province and Yunxian of Hubei Province. From north to south they were Sangping-Xiaguan basin, Xiping-Chimei basin, Taohe Basin in Xichuan and Yunxian-Yunxi basin. Based on the stratigraphic distribution regularity of fossil eggs in the southwestern Henan-northwestern Hubei area, this paper reveals that the Cretaceous basins in the southern area of the Funiu Mountain were formed from north to south in succession, and that the basement of the basins became gradually younger in the steplike form southwards.

关 键 词：蛋化石 演化序列 白垩系 豫西南鄂西北 

分 类 号：P531[天文地球—古生物学与地层学]