Biostratigraphy and Microfacies of Upper Cretaceous Oceanic Red Beds in the Northern Tethyan Himalaya: A Case Study from the Zhangguo Section, Gyangze, Southern Tibet, China
文献类型：期刊论文
| 作者 | Li, Yuewei1,2,3; Li, Guobiao1,2; Ding, Jie1,2; Xie, Dan3; Wang, Tianyang1,2; Baoke, Zhantu1,2; Jia, Mengmeng1,2; Wang, Chengshan1,2 |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2025-06-25 |
| 卷号 | 15期号:13页码:27 |
| 关键词 | CORBs planktic foraminiferal biostratigraphy microfacies Late Cretaceous Zhangguo Tibet |
| DOI | 10.3390/app15137136 |
| 通讯作者 | Li, Guobiao(liguobiao@cugb.edu.cn) |
| 英文摘要 | The Cretaceous oceanic red beds (CORBs) and their implications for "oceanic oxic events" have been widely studied by geologists globally. In southern Tibet, CORBs are extensively distributed within the Upper Cretaceous strata of the northern Tethyan Himalaya (NTH). A well-exposed, CORB-bearing, mixed carbonate-shale sequence is found in the Zhangguo section of Rilang Township, Gyangze County. The Chuangde Formation in this section is characterized by well-preserved CORBs, which include reddish shale, limestone, marlstone, and interbedded siltstone. These CORBs are stratigraphically overlain by the Jiabula/Gyabula Formation (predominantly shale) and underlain by the Zongzhuo Formation ("m & eacute;lange"). However, the precise age, depositional environments, and regional/global correlations of these CORBs, as well as their implications for synchronous versus diachronous oceanic oxic events, remain to be fully understood. In this study, a comprehensive analysis of foraminiferal biostratigraphy and microfacies is conducted for the CORB-bearing Chuangde Formation and the upper Jiabula (Gyabula) Formation in the Zhangguo section. Five planktic foraminiferal biozones including Dicarinella asymetrica, Globotruncanita elevata, Contusotruncana plummerae, Radotruncana calcarata, and Globotruncanella havanensis are identified through detailed biostratigraphic analysis, confirming a Campanian age for the Chuangde Formation and its CORBs. These findings are broadly correlated with typical Upper Cretaceous CORBs in pelagic-hemipelagic settings across the NTH in southern Tibet. Nine microfacies and four facies associations are identified within the Upper Cretaceous strata of Gyangze and adjacent areas through field and petrographic analyses. Notably, it is indicated that planktic foraminiferal packstone/grainstone CORBs were deposited in outer shelf to upper slope environments, while radiolarian chert CORBs are inferred to have formed in deep-water, basinal settings below the carbonate compensation depth (CCD). |
| 资助项目 | National Natural Science Foundation of China ; Strategic Project of Science and Technology of Chinese Academy of Sciences[XDB050105003] ; National Basic Research Program of China[2012CB822001] ; [41972031] ; [41272030] ; [40972026] |
| WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001526338400001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China ; Strategic Project of Science and Technology of Chinese Academy of Sciences ; National Basic Research Program of China |
| 源URL | [http://119.78.100.205/handle/311034/24476]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Li, Guobiao |
| 作者单位 | 1.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China 2.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yuewei,Li, Guobiao,Ding, Jie,et al. Biostratigraphy and Microfacies of Upper Cretaceous Oceanic Red Beds in the Northern Tethyan Himalaya: A Case Study from the Zhangguo Section, Gyangze, Southern Tibet, China[J]. APPLIED SCIENCES-BASEL,2025,15(13):27. |
| APA | Li, Yuewei.,Li, Guobiao.,Ding, Jie.,Xie, Dan.,Wang, Tianyang.,...&Wang, Chengshan.(2025).Biostratigraphy and Microfacies of Upper Cretaceous Oceanic Red Beds in the Northern Tethyan Himalaya: A Case Study from the Zhangguo Section, Gyangze, Southern Tibet, China.APPLIED SCIENCES-BASEL,15(13),27. |
| MLA | Li, Yuewei,et al."Biostratigraphy and Microfacies of Upper Cretaceous Oceanic Red Beds in the Northern Tethyan Himalaya: A Case Study from the Zhangguo Section, Gyangze, Southern Tibet, China".APPLIED SCIENCES-BASEL 15.13(2025):27. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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