Carbon isotope (delta C-13(carb)) stratigraphy of the Early-Middle Ordovician (Tremadocian-Darriwilian) carbonate platform in the Tarim Basin, NW China: implications for global correlations
文献类型：期刊论文
| 作者 | Yang, Xiaoqun2; Li, Zhong2; Fan, Tailiang3; Gao, Zhiqian3; Tang, Shuai1 |
| 刊名 | GEOLOGICAL MAGAZINE
 |
| 出版日期 | 2021-03-01 |
| 卷号 | 158期号:3页码:487-508 |
| ISSN号 | 0016-7568 |
| 关键词 | carbon isotopes conodont biostratigraphy unconformity Ordovician Tarim Basin |
| DOI | 10.1017/S0016756820000643 |
| 英文摘要 | Guided by conodont biostratigraphy and unconformities observed in the field, stable carbon isotopic analysis (delta C-13(carb)) was performed on 210 samples from Lower-Middle Ordovician (Tremadocian to Darriwilian) sections and wells in the Tarim Basin, NW China. The delta C-13 trend in the Tarim Basin sections has three distinct characteristics: (1) from the Tremadocian to the Floian, a positive shift from -1.9 parts per thousand to -0.2 parts per thousand is observed near the boundary between the Penglaiba Formation and the Yingshan Formation; (2) from the Floian to the Dapingian, a positive shift in delta C-13 from -3 parts per thousand to -0.7 parts per thousand occurred under large-scale sea-level rise and a change in the sedimentary environment from a restricted platform to an open platform. Changes in the conodont type are also observed in the Tabei region; and (3) from the Dapingian to the Darriwilian, delta C-13 first decreased and then increased, showing a negative shift at the Dapingian-Darriwilian boundary. During the Floian, delta C-13 decreased in the study area, while it first decreased and then increased in other regions, which may reflect local sea-level movements in response to isostatic crustal movements. Two types of positive shift were identified at the Floian-Dapingian boundary, which likely show the effects of local factors, including a disconformity, dolomitization, and platform restriction, superimposed on the global signal of the carbon isotope. Some conodont zonations and recurrent negative excursions in Tremadocian, Floian and Dapingian stages appear to be truncated by unconformities, which are accompanied by short-term subaerial exposure due to sea-level fall and local tectonic uplift. |
| WOS关键词 | CONODONT BIOSTRATIGRAPHY ; ARGENTINE PRECORDILLERA ; SEA-LEVEL ; RECORD ; CHEMOSTRATIGRAPHY ; SUCCESSION ; EXCURSION ; SWEDEN ; REGION ; EVOLUTION |
| 资助项目 | Natural Science Foundation of China[41802134] ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences[XDA14010201-02] ; Excellent Supervisor Fund of China University of Geosciences, Beijing[53200859664] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| WOS记录号 | WOS:000617280900007 |
| 资助机构 | Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing ; Excellent Supervisor Fund of China University of Geosciences, Beijing |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/100129]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Fan, Tailiang |
| 作者单位 | 1.Univ Sci & Technol Beijing, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.China Univ Geosci, Sch Energy Resources, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Xiaoqun,Li, Zhong,Fan, Tailiang,et al. Carbon isotope (delta C-13(carb)) stratigraphy of the Early-Middle Ordovician (Tremadocian-Darriwilian) carbonate platform in the Tarim Basin, NW China: implications for global correlations[J]. GEOLOGICAL MAGAZINE,2021,158(3):487-508. |
| APA | Yang, Xiaoqun,Li, Zhong,Fan, Tailiang,Gao, Zhiqian,&Tang, Shuai.(2021).Carbon isotope (delta C-13(carb)) stratigraphy of the Early-Middle Ordovician (Tremadocian-Darriwilian) carbonate platform in the Tarim Basin, NW China: implications for global correlations.GEOLOGICAL MAGAZINE,158(3),487-508. |
| MLA | Yang, Xiaoqun,et al."Carbon isotope (delta C-13(carb)) stratigraphy of the Early-Middle Ordovician (Tremadocian-Darriwilian) carbonate platform in the Tarim Basin, NW China: implications for global correlations".GEOLOGICAL MAGAZINE 158.3(2021):487-508. |
入库方式： OAI收割
来源：地质与地球物理研究所
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