Larger benthic foraminiferal turnover and carbon isotope excursion during the Paleocene-Eocene Thermal Maximum in the Southern Himalayan carbonate platform (Eastern Neo-Tethys Ocean, Pakistan)
文献类型:期刊论文
| 作者 | Kamran, Muhammad6; Frontalini, Fabrizio7; Xi, Dang-Peng6,8; Papazzoni, Cesare Andrea9; Mirza, Kamran10; Mohibullah, Mohibullah11; Jiang, Tian6; Fawad, Nadir1; Latif, Khalid3; Jafarian, Arman2 |
| 刊名 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN
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| 出版日期 | 2025-10-28 |
| 页码 | 20 |
| ISSN号 | 0016-7606 |
| DOI | 10.1130/B38213.1 |
| 英文摘要 | The Paleocene-Eocene Thermal Maximum (PETM; ca. 56 Ma) is widely recognized as one of the most severe transient warming events during the Cenozoic Era. The investigation of shallow-marine records is crucial for comprehending the larger benthic foraminiferal (LBF) turnover and environmental changes across the PETM. Based on sedimentological, biostratigraphic, and chemostratigraphic data, this study provides the first comprehensive record of the PETM from two sections within the Baluchistan Basin (Eastern Neo-Tethys Ocean, Pakistan). A prominent negative carbon isotope excursion (CIE) of similar to 5.65 parts per thousand in the Jandran section and similar to 3.11 parts per thousand in the Sanjawi section is used to accurately characterize the PETM. This excursion indicates that the Paleocene-Eocene (P/E) boundary is located within shallow benthic Paleocene (SBP) zone 4. No significant taxonomic change is ob served at the P/E boundary. The main phase of the CIE falls in the middle part of shallow benthic zone (SBZ) 5. This phase is associated with a relatively high sea level and a persistent mid-ramp depositional environment, which continues up to the top part of SBZ 5. A significant taxonomic change in the LBF assemblages is observed at the SBZ 5/SBZ 6 boundary coinciding with the CIE recovery phase of the PETM. The changes in the LBF assemblages are characterized by the disappearance of some widespread upper Paleocene genera, such as Ranikothalia, Orbitosiphon, Miscellanea, Daviesina, and Lockhartia, and the subsequent radiation of typical lower Eocene genera, such as Orbitolites, Alveolina (both genera are present in SBP 4), and Nummulites (this genus is present in SBP 3). During the CIE recovery phase, a replacement of mid-ramp sediments with shoal sediments is observed. Evidently, the primary factor influencing the LBF turnover during the CIE recovery phase of the PETM was the change in nutrient input generated by enhanced terrestrial runoff. This, in turn, was triggered by the sea-level fall. |
| WOS关键词 | SEA-LEVEL CHANGES ; DABABIYA QUARRY SECTION ; CLIMATE-CHANGE ; EVOLUTION ; MARINE ; PYRENEES ; RECORD ; BASIN ; TIBET ; BOUNDARY |
| 资助项目 | National Key Research and Development Program of China[2022YFF0800800] ; National Natural Science Foundation of China[42350410450] ; National Natural Science Foundation of China[42072001] ; National Natural Science Foundation of China[42272035] ; Beijing Natural Science Foundation[IS24057] ; Beijing Natural Science Foundation[IS24097] ; Chinese 111 Project[B20011] ; Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences[GBL215010] ; Deep-time Digital Earth Science and Technology Leading Talents Team Funds for the Central Universities for the Frontiers Science Center for Deep-time Digital Earth, China University of Geosciences (Beijing)[2652023001] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001606151000001 |
| 出版者 | GEOLOGICAL SOC AMER, INC |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Beijing Natural Science Foundation ; Chinese 111 Project ; Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences ; Deep-time Digital Earth Science and Technology Leading Talents Team Funds for the Central Universities for the Frontiers Science Center for Deep-time Digital Earth, China University of Geosciences (Beijing) |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/45699] ![]() |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Xi, Dang-Peng |
| 作者单位 | 1.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 2.Zhejiang Ocean Univ, Marine Sci & Technol Coll, Zhoushan 316022, Zhejiang, Peoples R China 3.Univ Peshawar, Natl Ctr Excellence Geol, Peshawar 25130, Khyber Pakhtunk, Pakistan 4.Cent South Univ, Sch Geosci & Info phys, Changsha 410083, Hunan, Peoples R China 5.Geol Survey Pakistan, Quetta 87300, Pakistan 6.China Univ Geosci, Frontiers Sci Ctr Deep Time Digital Earth, State Key Lab Geomicrobiol & Environm Changes, Beijing 100083, Peoples R China 7.Univ Urbino Carlo Bo, Dipartimento Sci Pure & Applicate, Campus Sci, I-61029 Urbino, Italy 8.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 9.Univ Modena & Reggio Emilia, Dipartimento Sci Chim & Geolog, I-41125 Modena, Italy 10.Univ Punjab, Inst Geol, Lahore 22567, Pakistan |
| 推荐引用方式 GB/T 7714 | Kamran, Muhammad,Frontalini, Fabrizio,Xi, Dang-Peng,et al. Larger benthic foraminiferal turnover and carbon isotope excursion during the Paleocene-Eocene Thermal Maximum in the Southern Himalayan carbonate platform (Eastern Neo-Tethys Ocean, Pakistan)[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2025:20. |
| APA | Kamran, Muhammad.,Frontalini, Fabrizio.,Xi, Dang-Peng.,Papazzoni, Cesare Andrea.,Mirza, Kamran.,...&Wan, Xiao-Qiao.(2025).Larger benthic foraminiferal turnover and carbon isotope excursion during the Paleocene-Eocene Thermal Maximum in the Southern Himalayan carbonate platform (Eastern Neo-Tethys Ocean, Pakistan).GEOLOGICAL SOCIETY OF AMERICA BULLETIN,20. |
| MLA | Kamran, Muhammad,et al."Larger benthic foraminiferal turnover and carbon isotope excursion during the Paleocene-Eocene Thermal Maximum in the Southern Himalayan carbonate platform (Eastern Neo-Tethys Ocean, Pakistan)".GEOLOGICAL SOCIETY OF AMERICA BULLETIN (2025):20. |
入库方式: OAI收割
来源:南京地质古生物研究所
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