Paleocene and Lower Eocene shallow-water limestones of Tibet: Microfacies analysis and correlation of the eastern Neo-Tethyan Ocean

doi:10.1016/j.palwor.2017.12.002

NIGPAS OpenIR

	Paleocene and Lower Eocene shallow-water limestones of Tibet: Microfacies analysis and correlation of the eastern Neo-Tethyan Ocean
	Kahsnitz, Michaela M.1; Willems, Helmut 1,2; Luo, Hui （罗辉）2 ; Zhou, Zhi-Cheng （周志澄）2
	2018-06-01
发表期刊	PALAEOWORLD
ISSN	1871-174X
卷号	27 期号:2 页码:226-246
摘要	Microfacial investigations of the Lower Paleogene sediments were based on four sections of the passive Indian (Ladakh, Tingri County, Gamba County and Yadong County) and one of the active Asian continental margin (Zhongba County). Eleven microfacies from the Tethyan Himalaya (prefixed with P for passive continental margin) and four from the Xigaze forearc basin (prefixed with A for active continental margin) were observed. The distribution of fossil assemblages in the environment ranges from the tidal flat and restricted lagoonal part of the inner carbonate ramp to the outer carbonate ramp: (P1) green algae pack-/grainstone with small miliolids, (P2) bioclast grainstone, (P3) Rotaliidae packstone, (P4) Miscellaneidae-Rotaliidae-Nummulitidae pack-/grainstone, (P5) laminated and bioturbated mud- and grainstone, (P6) Alveolina wacke/packstone with Soritidae, (P7) Nummulites-Alveolina-Orbitolites pack-/floatstone, (P8) Discocyclinidae-Nummulitidae pack-/floatstone, (P9) Rhodolith wacke-/packstone, (P10) mudstone with anhydrite nodules, (P11) planktonic foraminiferal wackestone, (Al) molluskan float-/rudstone, (A2) Nummulitidae wacke-/packstone, (A3) rhodolith wacke-/packstone, (A4) Discocyclinidae-Nummulitidae float-/rudstone. The correlation of our observations provides a detailed overview of the paleoenvironmental development and the sedimentary history of the eastern Neo-Tethyan Ocean, showing a deepening trend in two stages from Lower Paleocene to Lower Eocene. (C) 2017 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. Published by Elsevier B.V. All rights reserved.
关键词	Paleoenvironment Microfacies Analysis Tethyan Himalaya Xigaze Forearc Strata Paleogene Carbonate
DOI	10.1016/j.palwor.2017.12.002
语种	英语
关键词[WOS]	Larger Benthic Foraminifera ; India-asia Collision ; Southern Tibet ; Tethyan Himalaya ; Northwestern Himalaya ; Thermal Maximum ; Basin Evolution ; China ; Zanskar
资助项目	Priority Program Tibetan Plateau: Formation-Climate Ecosystem (TiP)[1372] ; Chinese Academy of Sciences (CAS)[XDB03010102] ; German Science Foundation[DFG Wi725/29] ; University of Bremen (Germany)
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:000432457000007
项目资助者	Priority Program Tibetan Plateau: Formation-Climate Ecosystem (TiP) ; Chinese Academy of Sciences (CAS) ; German Science Foundation ; University of Bremen (Germany)
出版者	ELSEVIER SCIENCE BV
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/18699
专题	中国科学院南京地质古生物研究所其他
通讯作者	Kahsnitz, Michaela M.
作者单位	1.Univ Bremen, Dept Geosci, D-28359 Bremen, Germany 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Kahsnitz, Michaela M.,Willems, Helmut,Luo, Hui ,et al. Paleocene and Lower Eocene shallow-water limestones of Tibet: Microfacies analysis and correlation of the eastern Neo-Tethyan Ocean[J]. PALAEOWORLD,2018,27(2):226-246.
APA	Kahsnitz, Michaela M.,Willems, Helmut,Luo, Hui ,&Zhou, Zhi-Cheng .(2018).Paleocene and Lower Eocene shallow-water limestones of Tibet: Microfacies analysis and correlation of the eastern Neo-Tethyan Ocean.PALAEOWORLD,27(2),226-246.
MLA	Kahsnitz, Michaela M.,et al."Paleocene and Lower Eocene shallow-water limestones of Tibet: Microfacies analysis and correlation of the eastern Neo-Tethyan Ocean".PALAEOWORLD 27.2(2018):226-246.