Stable isotopic studies of dinosaur eggshells from the Nanxiong Basin, South China

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	Stable isotopic studies of dinosaur eggshells from the Nanxiong Basin, South China
	Zhao, ZK ; Yan, Z ; Zhao, ZK (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China.
	2000-02-01
发表期刊	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
ISSN	1006-9313
卷号	43 期号:1 页码:84-92
文章类型	Article
摘要	Stable carbon and oxygen isotopes have been observed in dinosaur eggshell samples, identified as Macroolithus yaotunensis, collected in two sections of the Nanxiong Basin, Guangdong Province, South China. Multiple positive delta O-18 perturbations that occurred during the K/T transition of about 150 ka suggest that there may have been at least three periods of the extreme dry climate with a mean annual air temperature over 27 degrees C, delta C-13 ranges from -8.37 parts per thousand to -11.60 parts per thousand of the dinosaur eggshells, added to the metabolic enrichment of 16 parts per thousand, may indicate that the dinosaurs represented by this type of eggshells probably consumed the plant species of C-3 type with the delta C-13 values of -24.3 parts per thousand- -27.6 parts per thousand. Moreover, the trend toward more negative delta C-13 values of the eggshells during the K/T transition could be an indirect consequence of a lasting increase in atmospheric CO2 concentration.; Stable carbon and oxygen isotopes have been observed in dinosaur eggshell samples, identified as Macroolithus yaotunensis, collected in two sections of the Nanxiong Basin, Guangdong Province, South China. Multiple positive delta O-18 perturbations that occurred during the K/T transition of about 150 ka suggest that there may have been at least three periods of the extreme dry climate with a mean annual air temperature over 27 degrees C, delta C-13 ranges from -8.37 parts per thousand to -11.60 parts per thousand of the dinosaur eggshells, added to the metabolic enrichment of 16 parts per thousand, may indicate that the dinosaurs represented by this type of eggshells probably consumed the plant species of C-3 type with the delta C-13 values of -24.3 parts per thousand- -27.6 parts per thousand. Moreover, the trend toward more negative delta C-13 values of the eggshells during the K/T transition could be an indirect consequence of a lasting increase in atmospheric CO2 concentration.
关键词	K/t Boundary Dinosaur Eggshell Isotopic Composition Paleoenvironment
WOS标题词	Science & Technology ; Physical Sciences
URL	查看原文
关键词[WOS]	CARBON ; RATIOS ; DIET
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000085514900008
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3921
专题	中科院古脊椎所（2000年以后）
通讯作者	Zhao, ZK (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.State Seismol Bur, Inst Geol, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhao, ZK,Yan, Z,Zhao, ZK . Stable isotopic studies of dinosaur eggshells from the Nanxiong Basin, South China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2000,43(1):84-92.
APA	Zhao, ZK,Yan, Z,&Zhao, ZK .(2000).Stable isotopic studies of dinosaur eggshells from the Nanxiong Basin, South China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,43(1),84-92.
MLA	Zhao, ZK,et al."Stable isotopic studies of dinosaur eggshells from the Nanxiong Basin, South China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 43.1(2000):84-92.

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