| 豫西南-鄂西北-带恐龙蛋化石演化序列与环境变迁 |
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| 引用本文：方晓思,程政武,张志军,庞其清,韩迎建,谢宏亮,李佩贤.2007.豫西南-鄂西北-带恐龙蛋化石演化序列与环境变迁[J].地球学报,28(2):97-110. |
| DOI：10.3975/cagsb.2007.02.01 |
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| 基金项目:中国地质大调查项目(编号:200313000049) |
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| 中文摘要: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。 |
| 中文关键词:蛋化石 演化序列 白垩系 豫西南鄂西北 |
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| Evolutionary Series of Dinosaur Eggs and Environmental Changes in Southwestern Henan-Northwestern Hubei |
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| Abstract:In Late Mesozoic there developed a series of NW-SE trending tectonic basins on the southern limb of anticlines 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. |
| keywords:egg fossil evolutionary series Cretaceous southwestern Henan northwestern Hubei |
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