干旱区生态环境知识资源中心(Arid): Early Jurassic palaeoclimate in Southwest China and its implications for dinosaur fossil distribution

Arid

DOI	10.1002/gj.4168
	Early Jurassic palaeoclimate in Southwest China and its implications for dinosaur fossil distribution
	Shen, Huan; Zhang, Laiming; Wang, Chengshan; Amiot, Romain; Wang, Xu; Cui, Linlin; Song, Peng
通讯作者	Zhang, LM ; Wang, CS (corresponding author), China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China.
来源期刊	GEOLOGICAL JOURNAL
ISSN	0072-1050
EISSN	1099-1034
出版年	2021-05
英文摘要	Lufeng County in Southwest China is one of the most famous lagerstatten in which Early Jurassic dinosaurs can be found. The reason for the burial of large body size dinosaur fossils at this site is still an enigma, although it could be attributed to either suitable habitats or good preservation conditions. Both of these factors are indirectly regulated by climatic conditions. Therefore, a quantitative reconstruction of the terrestrial palaeoclimate of the Lufeng area during the Early Jurassic could help shed new light on this issue. In this study, we analysed the stable isotope compositions of oxygen and carbon (delta C-13 and delta O-18) in apatite phosphate and carbonate from the tooth enamel and compact bones of basal sauropodiform and Sinosaurus fossils. The oxygen isotopes provided a mean annual temperature (MAT) of >= 21 +/- 3 degrees C, and the carbon isotopes allowed us to estimate a mean annual precipitation (MAP) of 965 +/- 460 mm/yr during the Early Jurassic in Lufeng County. These conditions correspond to a relatively arid tropical savanna climate hospitable to vertebrate life. We also compared the spatial relationship between the global distribution of dinosaur fossils and climatically sensitive deposits during the Jurassic. The dinosaur fossil distribution reveals a strong preference for arid regions. We therefore suggest that 'savanna-like' tropical conditions helped accommodate a large number of dinosaurs and preserve their carcasses in the Lufeng area during the Early Jurassic.
英文关键词	apatite dinosaur fossils Early Jurassic Lufeng stable isotope geochemistry
类型	Article ; Early Access
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000652801400001
WOS关键词	OXYGEN-ISOTOPE COMPOSITIONS ; BONE PHOSPHATE ; DELTA-O-18 RECORD ; BIOGENIC APATITES ; LUFENG FORMATION ; STABLE OXYGEN ; CLIMATE ; CARBON ; WATER ; FRACTIONATION
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	中国科学院地质与地球物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352209
作者单位	[Shen, Huan; Zhang, Laiming; Wang, Chengshan] China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China; [Zhang, Laiming; Wang, Chengshan] China Univ Geosci, Sch Earth Sci & Resources, Beijing, Peoples R China; [Amiot, Romain] Univ Claude Bernard Lyon 1, Lab Geol Lyon Terre Planetes & Environm, Villeurbanne, France; [Wang, Xu; Cui, Linlin] Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing, Peoples R China; [Song, Peng] MEMC, Minist Emergency Management China, Natl Inst Nat Hazards, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Shen, Huan,Zhang, Laiming,Wang, Chengshan,et al. Early Jurassic palaeoclimate in Southwest China and its implications for dinosaur fossil distribution[J]. 中国科学院地质与地球物理研究所,2021.
APA	Shen, Huan.,Zhang, Laiming.,Wang, Chengshan.,Amiot, Romain.,Wang, Xu.,...&Song, Peng.(2021).Early Jurassic palaeoclimate in Southwest China and its implications for dinosaur fossil distribution.GEOLOGICAL JOURNAL.
MLA	Shen, Huan,et al."Early Jurassic palaeoclimate in Southwest China and its implications for dinosaur fossil distribution".GEOLOGICAL JOURNAL (2021).