Ar-40/Ar-39 age constraints on Cretaceous fossil-bearing formations near   the China-North Korea border

doi:10.1016/j.palaeo.2014.01.004

CORC > 北京大学 > 地球与空间科学学院

	Ar-40/Ar-39 age constraints on Cretaceous fossil-bearing formations near the China-North Korea border
	Chang, Su-Chin ; Hemming, Sidney R. ; Gao, Ke-Qin ; Zhou, Chang-Fu
刊名	palaeogeography palaeoclimatology palaeoecology
	2014
关键词	Dandong Sinuiju Jehol Biota Jehol migration Ar-40/Ar-39 dating JEHOL-BIOTA TECTONIC IMPLICATIONS CRATON PENINSULA EVOLUTION ECOSYSTEM PROVINCE CLIMATE BENEATH MIDDLE
DOI	10.1016/j.palaeo.2014.01.004
英文摘要	Abundant Mesozoic terrestrial plant, fish and invertebrate fossils have been discovered from the Lishugou Formation and the underlying Xiaolin Formation in the eastern Liaoning province of NE China since the 1970s. These discoveries have great potential for substantially increasing our knowledge on the evolution of paleoecosystems and paleoenvironments in East Asia. However, previous geological and geochronological studies for these fossil-bearing formations are rare because the fossil outcrops are near the border between China and North Korea. Here we present robust Ar-40/Ar-39 ages of 99.9 +/- 0.4 Ma for one sample from the Lishugou Formation and 109.1 +/- 0.2 Ma and 122.4 +/- 0.2 Ma for two samples from the upper and lower parts of the Xiaolin Formation from Dandong City, Liaoning, China. Our new age data indicate that the Lishugou and Xiaolin Formations were deposited contemporaneously with the Jiufotang Formation from the classic Jehol outcrops in western Liaoning. Therefore, our results provide an accurate age calibration for the fossils discovered from the Liaodong Peninsula and suggest that the hypothesis of the Jehol migration should be reappraised. (C) 2014 Elsevier B.V. All rights reserved.; Geography, Physical; Geosciences, Multidisciplinary; Paleontology; SCI(E); 1; ARTICLE; suchin@hku.hk; 93-98; 396
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/216166]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Chang, Su-Chin,Hemming, Sidney R.,Gao, Ke-Qin,et al. Ar-40/Ar-39 age constraints on Cretaceous fossil-bearing formations near the China-North Korea border[J]. palaeogeography palaeoclimatology palaeoecology,2014.
APA	Chang, Su-Chin,Hemming, Sidney R.,Gao, Ke-Qin,&Zhou, Chang-Fu.(2014).Ar-40/Ar-39 age constraints on Cretaceous fossil-bearing formations near the China-North Korea border.palaeogeography palaeoclimatology palaeoecology.
MLA	Chang, Su-Chin,et al."Ar-40/Ar-39 age constraints on Cretaceous fossil-bearing formations near the China-North Korea border".palaeogeography palaeoclimatology palaeoecology (2014).