A possible causal relationship between extinction of dinosaurs and K/T iridium enrichment in the Nanxiong Basin, South China: evidence from dinosaur eggshells

IVPP-IR > 古低等脊椎动物研究室

	A possible causal relationship between extinction of dinosaurs and K/T iridium enrichment in the Nanxiong Basin, South China: evidence from dinosaur eggshells
	Zhao, ZK ; Mao, XY ; Chai, ZF ; Yang, GC ; Kong, P ; Ebihara, M ; Zhao, ZH
	2002-02-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
卷号	178 期号:1-2 页码:1-17
文章类型	Article
摘要	Multiple distinct iridium anomalies have been observed in dinosaur eggshells in the K/T boundary sections of the Nanxiong Basin, Guangdong Province, South China. The eggshells collected at and near the fossil-pollen-defined K/T boundary interval show iridium increases of about 19 and 28 times, respectively, above the background level. The enrichment of other trace elements in the eggshells occurs mostly at and near the interval. The distribution of Ir-bearing levels proves the existence of at least six Ir-delivering events from the latest Cretaceous into the earliest Paleocene. The enrichment of Ir and other trace elements in eggshells may have been caused by the assimilation of these elements into the dinosaur body through food, and then into the eggs laid by them.
关键词	K/t Boundary Ir Anomaly Trace Element Dinosaur Eggshell Dinosaur Extinction
WOS标题词	Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
关键词[WOS]	CRETACEOUS-TERTIARY BOUNDARY ; PREFERRED ORIENTATION ; IMPACT ; VOLCANISM ; DEPOSITS ; ANJAR ; TEXAS ; AGE
收录类别	SCI
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000175622600001
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/1888
专题	古低等脊椎动物研究室
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Lab Nucl Analyt Tech, Beijing 100080, Peoples R China 4.Tokyo Metropolitan Univ, Dept Chem, Hachioji, Japan 5.Chinese Acad Sci, Inst Geochem, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Zhao, ZK,Mao, XY,Chai, ZF,et al. A possible causal relationship between extinction of dinosaurs and K/T iridium enrichment in the Nanxiong Basin, South China: evidence from dinosaur eggshells[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2002,178(1-2):1-17.
APA	Zhao, ZK.,Mao, XY.,Chai, ZF.,Yang, GC.,Kong, P.,...&Zhao, ZH.(2002).A possible causal relationship between extinction of dinosaurs and K/T iridium enrichment in the Nanxiong Basin, South China: evidence from dinosaur eggshells.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,178(1-2),1-17.
MLA	Zhao, ZK,et al."A possible causal relationship between extinction of dinosaurs and K/T iridium enrichment in the Nanxiong Basin, South China: evidence from dinosaur eggshells".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 178.1-2(2002):1-17.