CONTINENTAL PALEOTEMPERATURES FROM AN EARLY CRETACEOUS DOLOMITIC LAKE, GANSU PROVINCE, CHINA

doi:10.2110/jsr.2017.31

IVPP-IR > 中科院古脊椎所（2000年以后）

	CONTINENTAL PALEOTEMPERATURES FROM AN EARLY CRETACEOUS DOLOMITIC LAKE, GANSU PROVINCE, CHINA
	Suarez, Marina B.1; Ludvigson, Gregory A.2; Gonzalez, Luis A.3; You, Hai-Lu 4
	2017-05-01
发表期刊	JOURNAL OF SEDIMENTARY RESEARCH
卷号	87 期号:5 页码:486-499
文章类型	Article
摘要	The Lower Cretaceous strata of Asia are renowned for abundant fossil resources. These strata can also offer a wealth of quantitative data regarding the paleoclimate and paleoenvironment of the terrestrial Cretaceous, an important transition in Earth history. Many modern groups of organisms that dominate terrestrial ecosystems today originated or expanded in the Early Cretaceous. In addition, the Cretaceous Period, known to have been characterized by a greenhouse climate, provides opportunities to understand how the climate system functioned during greenhouse climate states. Here we utilize the clumped-isotope paleothermometer to provide paleotemperature records from a lacustrine sequence in northwestern China, previously constrained to the early Aptian. Petrographic and X-ray diffraction analyses indicate that the lake sediments produced primary to early diagenetic dolomites, likely microbially mediated due to high organic-matter input and seasonally warm arid conditions. The majority of the dolomitic carbonates formed in pore waters just below the sediment-water interface or as primary shallow-water precipitates. Clumped-isotope-derived temperatures from all carbonates range from 20.6 degrees C for early diagenetic dolomites to 47.2 degrees C for late-burial calcite cements. Accounting for seasonal biases, mean annual air temperatures are calculated to have averaged 20.2 degrees C. This is broadly consistent with local paleotemperature proxy evidence and climate-model paleotemperature estimates. The data presented provides further quantitative constraints on the Cretaceous greenhouse world, as well as insights into depositional settings that produce low-temperature dolomites.
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.2110/jsr.2017.31
关键词[WOS]	CLUMPED ISOTOPE THERMOMETRY ; EAST-ASIAN DINOSAURS ; STABLE-ISOTOPE ; LACUSTRINE DOLOMITE ; NORTHWESTERN CHINA ; CARBONATE MINERALS ; SOUTH-AUSTRALIA ; C-13-O-18 BONDS ; OXYGEN ISOTOPES ; COORONG REGION
收录类别	SCI
语种	英语
项目资助者	National Science Foundation from the Office of International Programs of The University of Kansas Research and Graduate Studies office(EAR-0636207) ; American Association of Petroleum Geologists ; National Natural Science Foundation of China(40672007 ; 41072019)
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000402312300003
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7581
专题	中科院古脊椎所（2000年以后）
作者单位	1.Univ Texas San Antonio, Dept Geol Sci, One UTSA Circle, San Antonio, TX 78249 USA 2.Univ Kansas, Kansas Geol Survey, 1930 Constant Ave, Lawrence, KS 66047 USA 3.Univ Kansas, Dept Geol, 1475 Jayhawk Blvd, Lawrence, KS 66045 USA 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, 142 Xizhimenwai Dajie, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Suarez, Marina B.,Ludvigson, Gregory A.,Gonzalez, Luis A.,et al. CONTINENTAL PALEOTEMPERATURES FROM AN EARLY CRETACEOUS DOLOMITIC LAKE, GANSU PROVINCE, CHINA[J]. JOURNAL OF SEDIMENTARY RESEARCH,2017,87(5):486-499.
APA	Suarez, Marina B.,Ludvigson, Gregory A.,Gonzalez, Luis A.,&You, Hai-Lu.(2017).CONTINENTAL PALEOTEMPERATURES FROM AN EARLY CRETACEOUS DOLOMITIC LAKE, GANSU PROVINCE, CHINA.JOURNAL OF SEDIMENTARY RESEARCH,87(5),486-499.
MLA	Suarez, Marina B.,et al."CONTINENTAL PALEOTEMPERATURES FROM AN EARLY CRETACEOUS DOLOMITIC LAKE, GANSU PROVINCE, CHINA".JOURNAL OF SEDIMENTARY RESEARCH 87.5(2017):486-499.

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