KMS Nanjing Institute of Geology and Palaeonotology,CAS
Paleocene and Lower Eocene shallow-water limestones of Tibet: Microfacies analysis and correlation of the eastern Neo-Tethyan Ocean | |
Kahsnitz, Michaela M.1; Willems, Helmut1,2; Luo, Hui (罗辉)2![]() | |
2018-06-01 | |
发表期刊 | PALAEOWORLD
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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. |
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