Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Lu, Chang1,3,4; Cui, Xin-Dong2,5; Chen, Jun1; Cui, Ze-Xian1; Zhu, Min2,3; Xu, Yi-Gang1,3,4
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| Devonian sea surface temperature and paleoecology changes constrained by in situ oxygen isotopes of fish fossils | |
| Source Publication | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| ISSN | 0031-0182 |
| 2024-04-01 | |
| Volume | 639Pages:12 |
| DOI | 10.1016/j.palaeo.2024.112059 |
| Language | 英语 |
| WOS Research Area | Physical Geography ; Geology ; Paleontology |
| Abstract | Significant changes occurred in both terrestrial and marine environments in the Devonian, during which complex terrestrial life radiated rapidly from the ocean. However, the reconstruction of the seawater temperatures for this period is still noticeably insufficient, largely due to a lack of appropriate geological archives especially in freshwater and near-shore marine deposits. In this study, we carried out a detailed characterization of microstructure, elements and isotopes of Early and Late Devonian fish fossils from Yunnan and Ningxia, China, respectively. The results show that fish enamels were relatively more resistant to diagenetic alteration than fossil dentine and bones, and can serve as valuable archives for Paleozoic temperature and ecology reconstruction. In situ oxygen isotopes of the enamel apatite (delta 18O(p)) of Early Devonian fossil fishes (sarcopterygians and antiarchs) vary from 16%o to 18%o, in good agreement with those of contemporaneous conodonts. The corresponding seawater temperatures are calculated to be >30degree celsius, therefore lending support to a greenhouse climate of the Early Devonian. In contrast, Late Devonian fish enamels tend to have lower delta 18Op than those of the contemporaneous conodonts. The difference in delta 18O(p) is attributable to the change in the living environment during the transition of the fish-to-tetrapod. |
| Keyword | Paleotemperature Paleoecology SIMS Oxygen isotope Devonian Fish enamel |
| WOS ID | WOS:001178545500001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/77271 |
| Collection | 同位素地球化学国家重点实验室 |
| Corresponding Author | Xu, Yi-Gang |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Isotope Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, CAS Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China 5.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Minist Educ, Beijing 100871, Peoples R China |
| Recommended Citation GB/T 7714 | Lu, Chang,Cui, Xin-Dong,Chen, Jun,et al. Devonian sea surface temperature and paleoecology changes constrained by in situ oxygen isotopes of fish fossils[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2024,639:12. |
| APA | Lu, Chang,Cui, Xin-Dong,Chen, Jun,Cui, Ze-Xian,Zhu, Min,&Xu, Yi-Gang.(2024).Devonian sea surface temperature and paleoecology changes constrained by in situ oxygen isotopes of fish fossils.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,639,12. |
| MLA | Lu, Chang,et al."Devonian sea surface temperature and paleoecology changes constrained by in situ oxygen isotopes of fish fossils".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 639(2024):12. |
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