1) boundary of the marine Cretaceous Tertiary
海相白垩系-第三系界线
2) Terrestrial Jurassic-Cretaceous Boundary
陆相侏罗系-白垩系界线
3) Jura-Cretaceous boundary
侏罗-白垩系界线
4) Jurassic-Cretaceous boundary
侏罗系-白垩系界线
1.
We here briefly review the recent progress in the study on the global Jurassic-Cretaceous boundary and its implications for the continental J-K boundary in China,particularly in northeastern China.
文中介绍目前国际侏罗系-白垩系界线研究的进展以及我国东北地区下白垩统和相关陆相地层的研究现状。
5) Cretaceous/Paleogene boundary
白垩系-古近系界线
6) the Cretaceous-Paleogene boundary
白垩系与古近系界线
1.
First, the contents of some major and trace elements in the bulk samples of Baishantou section,a typical outcrop neighbouring the Cretaceous-Paleogene boundary, were determined with Inductively Coupled Plasma-Atomic Emission Sp.
本文在前人应用古生物及锆石测年资料确定的黑龙江嘉荫地区白垩系与古近系界线附近,用地球化学指标分析了该区在该时段的气候变化趋势。
补充资料：上第三系
见晚第三纪。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条