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Abrupt warming in the latest Permian detected using high-resolution in situ oxygen isotopes of conodont apatite from Abadeh, central Iran
Chen, Jun1; Shen, Shu-zhong2,3; Zhang, Yi-chun4; Angiolini, Lucia5; Gorgij, Mohammad Nabi6; Crippa, Gaia5; Wang, Wei4; Zhang, Hua4; Yuan, Dong-xun4; Li, Xian-hua7
2020-12-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume560Pages:11
Abstract

Climate warming, probably as a result of massive degassing of greenhouse gases from the Siberian Traps magmatism, has often been acclaimed as a major cause of the end-Permian mass extinction. Indeed, several studies have documented a sudden rise in seawater temperatures during the latest Permian-earliest Triassic, as evidenced by oxygen isotopic records measured on conodont apatite. However, whether such a rapid increase in seawater temperatures occurred before, during, or after the mass extinction remains controversial. Moreover, the pattern of this rise in seawater temperatures and its timing relative to the latest Permian-earliest Triassic carbon cycle disruption, mass extinction, as well as the Siberian Traps magmatism still need to be rigorously examined in various regions. In this study, we present high-resolution oxygen isotopic records of conodont apatite (delta O-18(apatite)) from the Upper Permian-lowermost Triassic interval at the Abadeh section, central Iran that are analyzed with in situ secondary ion mass spectrometry (SIMS) method. The delta O-18(apatite) results from Abadeh demonstrate a clear pattern consisting of three phases: (1) From the lower Wuchiapingian Clarkina dukouensis Zone to the end-Permian mass extinction horizon, delta O-18(apatite) values are relatively stable, fluctuating in the range of 18.28-20.15 parts per thousand with an average of 19.44%. (2) delta O-18(apatite) value remains high as 19.26 parts per thousand at the mass extinction horizon. Above this horizon, a sudden decrease occurs in the Clarkina hauschkei Zone and reaches a low value of 17.05 parts per thousand close to the Permian-Triassic boundary. (3) In the lowermost Triassic, delta O-18(apatite) values maintain a low baseline in the range of 16.92-17.39 parts per thousand with an average of 17.11 parts per thousand. Overall, the most dramatic change in delta O-18(apatite) values (i.e., a decrease of similar to 2%), converting into an abrupt warming of similar to 10 degrees C, occurred above the mass extinction horizon and below the Permian-Triassic boundary at Abadeh. The Abadeh delta O-18(apatite) record is consistent with previous results documented in South China, Iran, and Armenia in terms of the timing and magnitude of a substantial warming, and therefore represents a global signature. If applying the high-precision temporal framework established in the well-dated Meishan GSSP section to Abadeh, the abrupt warming of similar to 10 degrees C took only a maximum duration of similar to 37 kyr (thousand years). By projecting the carbon cycle change, temperature rise, mass extinction at the Abadeh and Meishan sections, and the temporal evolution of the Siberian Traps magmatism onto a unified timescale, the temporal correlation strongly suggests that the switch from dominantly extrusive eruptions to widespread sill intrusions is probably the most annihilating phase of the Siberian Traps magmatism, and is temporally consistent with the end-Permian mass extinction.

KeywordSIMS Permian-Triassic boundary Climate warming End-Permian mass extinction Siberian Traps Intrusive magmatism
DOI10.1016/j.palaeo.2020.109973
Indexed BySCI
Language英语
WOS KeywordLARGE IGNEOUS PROVINCES ; TRIASSIC BOUNDARY INTERVAL ; MASS EXTINCTION ; SIBERIAN TRAPS ; ENVIRONMENTAL-CHANGE ; RAPID ERUPTION ; SOUTH CHINA ; NW IRAN ; CARBON ; STRATIGRAPHY
Funding ProjectChinese Academy of Sciences[XDB18000000] ; Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41420104003] ; Key Research Program of Frontier Sciences of CAS[QYZDY-SSW-DQC023] ; National Basic Research Program of China[2011CB808906] ; State Key Laboratory of Palaeobiology and Stratigraphy[20131101] ; MURST[PRIN2017RX9XXXY]
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000591245000006
Funding OrganizationChinese Academy of Sciences ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of CAS ; National Basic Research Program of China ; State Key Laboratory of Palaeobiology and Stratigraphy ; MURST
PublisherELSEVIER
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/37614
Collection中国科学院南京地质古生物研究所
Corresponding AuthorChen, Jun
Affiliation1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, 511 Kehua St, Guangzhou 510640, Peoples R China
2.Nanjing Univ, State Key Lab Mineral Deposits Res, 163 Xianlin Ave, Nanjing 210023, Peoples R China
3.Nanjing Univ, Sch Earth Sci & Engn, 163 Xianlin Ave, Nanjing 210023, Peoples R China
4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
5.Univ Milan, Dipartimento Sci Terra A Desio, Via Mangiagalli 34, I-20133 Milan, Italy
6.Univ Sistan & Baluchestcm, Fac Sci, Dept Geol, Zahedan, Iran
7.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Chen, Jun,Shen, Shu-zhong,Zhang, Yi-chun,et al. Abrupt warming in the latest Permian detected using high-resolution in situ oxygen isotopes of conodont apatite from Abadeh, central Iran[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,560:11.
APA Chen, Jun.,Shen, Shu-zhong.,Zhang, Yi-chun.,Angiolini, Lucia.,Gorgij, Mohammad Nabi.,...&Xu, Yi-gang.(2020).Abrupt warming in the latest Permian detected using high-resolution in situ oxygen isotopes of conodont apatite from Abadeh, central Iran.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,560,11.
MLA Chen, Jun,et al."Abrupt warming in the latest Permian detected using high-resolution in situ oxygen isotopes of conodont apatite from Abadeh, central Iran".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 560(2020):11.
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