Using paleontological clock to explore the extraterrestrial impact

CORC > 北京大学 > 地球与空间科学学院

	Using paleontological clock to explore the extraterrestrial impact
	Shen, B. ; Wen, Y. ; Bai, Z.
刊名	北京大学学报自然科学版
	2001
英文摘要	Contrasting the curve derived from the theory of the evolution of the earth-moon system with the ones based on the analysis of the shelly fossils distributed over the period from Ordovician to modern time reveals great discrepancy. Two turning points exist in the curves based on data analysis. The times of these two points coincident with the occurrence of the largest two extinctions in Permian-Triassic and Cretaceous-Tertiary, which is extensively believed to be results of the extraterrestrial impact. Further analysis on the sedimentary facies of these two boundaries throughout the world, which are previously thought of as a world-wide regression provide us more eloquent records. The mutation of interaction and the phase lag between the earth and the moon caused by extraterrestrial impact, from which the obvious mutation of the torque of the tidal force resulted, give us a reasonable interpretation on these two turning points.; EI; 0; 4; 508-514; 37
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/409808]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Shen, B.,Wen, Y.,Bai, Z.. Using paleontological clock to explore the extraterrestrial impact[J]. 北京大学学报自然科学版,2001.
APA	Shen, B.,Wen, Y.,&Bai, Z..(2001).Using paleontological clock to explore the extraterrestrial impact.北京大学学报自然科学版.
MLA	Shen, B.,et al."Using paleontological clock to explore the extraterrestrial impact".北京大学学报自然科学版 (2001).