Ordovician stable carbon isotope stratigraphy in the Tarim Basin, NW China
Zhang, Yuandong (张元动)1; Munnecke, Axel2
2016-09-15
发表期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
卷号458页码:154-175
摘要

The Tarim Basin, located in NW-China, represents one of China's major palaeoplates. Its palaeogeographic position in the Ordovician, however, is debated. In this study we present biostratigraphically controlled stable carbon isotope data from some 600 samples spanning almost the entire Ordovician in order to provide a tool that can be used for future chemostratigraphic correlations. The data correlate well with results from South China, and several major global delta C-13 excursions such as the MDICE (Dw2/3), SAICE (Sa2), GICE (Ka1), and Whitewater excursion (Ka4) are documented for the first time from the Tarim Basin. Major sedimentary gaps are detected in the lower Floian between the Penglaiba and Yinshan formations, in the upper Darriwilian to lower Sandbian between the Dawangou and Saergan (or Kanling) formations, and in the latest Sandbian between the Kanling and Qilang formations as well as between the Tumuxiuke and Lianglitag formations. Three scenarios for the depositional history of the late Darriwilian to early Sandbian Saergan Formation, which represents an important hydrocarbon source rock in the Tarim Basin, are discussed with respect to their bio- and chemostratigraphic implications. The mid-upper Ordovician rocks recording high delta C-13 values have been deposited during transgressive or highstand intervals, whereas the regressive intervals are mostly missing. This results in a stacking of several positive excursions, and thus chemostratigraphic correlation without biostratigraphic control might produce misleading results, especially for shallow-water carbonates. (C) 2015 Elsevier B.V. All rights reserved.

关键词Ordovician Tarim Stable Carbon Isotope Chemostratigraphy Source Rocks
DOI10.1016/j.palaeo.2015.09.001
语种英语
关键词[WOS]Limestone-marl Alternations ; Delta-c-13 Chemostratigraphy ; Major Blocks ; Argentine Precordillera ; Yangtze Platform ; Southern Sweden ; Excursion Mdice ; North-china ; Middle ; Succession
资助项目NSFC ; CAS[41172034] ; CAS[2011ZX05008-001-10] ; CAS[XDB10010100] ; Deutsche Forschungsgemeinschaft (DFG)[Mu 2352/1] ; Robert-Bosch-Stiftung[32.5.8003.0009.0]
WOS研究方向Physical Geography ; Geology ; Paleontology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号WOS:000381541200012
项目资助者NSFC ; CAS ; Deutsche Forschungsgemeinschaft (DFG) ; Robert-Bosch-Stiftung
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/332004/12375
专题中国科学院南京地质古生物研究所
其他
通讯作者Zhang, Yuandong (张元动)
作者单位1.Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing, Jiangsu, Peoples R China
2.Univ Erlangen Nurnberg, GeoZentrum Nordbayem, Fachgrp Palaoumwelt, Loewenichstr 28, D-91054 Erlangen, Germany
推荐引用方式
GB/T 7714
Zhang, Yuandong ,Munnecke, Axel. Ordovician stable carbon isotope stratigraphy in the Tarim Basin, NW China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2016,458:154-175.
APA Zhang, Yuandong ,&Munnecke, Axel.(2016).Ordovician stable carbon isotope stratigraphy in the Tarim Basin, NW China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,458,154-175.
MLA Zhang, Yuandong ,et al."Ordovician stable carbon isotope stratigraphy in the Tarim Basin, NW China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 458(2016):154-175.
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