Progress, problems and prospects: An overview of the Guadalupian Series of South China and North America

Shen, Shu-zhong; Yuan, Daoxian; Henderson, Charles M.; Wu, Qiong; Zhang, Yichun; Zhang, Hua; Mu, Lin; Ramezani, Jahandar; Wang, Xiangdong; Lambert, Lance L.; Erwin, Douglas H.; Hearst, Jonena; Xiang, Lei; Chen, Bin; Fan, Junxuan; Wang, Yue; Wang, Wen-qian; Qi, Yuping; Chen, Jun; Qie, Wenkun; Wang, Tian

doi:10.1016/j.earscirev.2020.103412

Cited by 36 publications

(35 citation statements)

References 183 publications

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“…The 87 Sr/ 86 Sr values of conodonts during the late Permian were updated by those of biostratigraphically re-defined conodonts reported by Song et al (2015). Almost all the data from Capitanian brachiopods show extremely low 87 S1; references in Korte and Ullman 2016;Kani et al, 2008;Kani et al, 2013;Song et al, 2015;Kani et al, 2018;Wang et al, 2018;Li et al, 2020;Shen et al, 2020) from samples of biostratigraphically dated and well-preserved (diagenetically screened) brachiopod shells, conodonts and micrite samples. When Burke et al (1982) first reported the Phanerozoic Sr isotope curve as a global seawater signal, nonmetamorphosed micrite samples were regarded to be promising for high-resolution Sr isotope stratigraphic correlation because a good correlation was confirmed between the brachiopod shell and associated micrites.…”

Section: Overall Aspectmentioning

confidence: 96%

“…(Korte et al, 2006;Henderson et al, 2012), although unavoidable problems relevant to faunal provincialism remain (Henderson and Mei, 2007). Among all sections, the Guadalupian sections in western Texas/New Mexico (United States) and the Penglaitan/Shanxi sections in South China with numerous fossil data and geochemical analyses are regarded as the most reliable reference sections for correlation (Shen et al, 2020). We also emphasize the significance of the unique records from mid-Panthalassa because they archive globally-averaged isotopic signatures of seawater without any influence from local tectonic disturbances in continental (Pangean) margins/ interiors.…”

Section: Paleogeography Of Sr Isotope Recordsmentioning

confidence: 99%

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The Capitanian Minimum: A Unique Sr Isotope Beacon of the Latest Paleozoic Seawater

Kani¹,

Isozaki²

2021

Front. Earth Sci.

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The long-term trend in the Paleozoic seawater 87Sr/86Sr was punctuated by a unique episode called the “Capitanian minimum” at the end of the Guadalupian (Permian; ca. 260 Ma). This article reviews the nature and timing of this major turning point in seawater Sr isotope composition (87Sr/86Sr, δ88Sr) immediately before the Paleozoic-Mesozoic boundary (ca. 252 Ma). The lowest value of seawater 87Sr/86Sr (0.7068) in the Capitanian and the subsequent rapid increase at an unusually high rate likely originated from a significant change in continental flux with highly radiogenic Sr. The assembly of the supercontinent Pangea and its subsequent mantle plume-induced breakup were responsible for the overall secular change throughout the Phanerozoic; nonetheless, short-term fluctuations were superimposed by global climate changes. Regarding the unidirectional decrease in Sr isotope values during the early-middle Permian and the Capitanian minimum, the suppression of continental flux was driven by the assembly of Pangea and by climate change with glaciation. In contrast, the extremely rapid increase in Sr isotope values during the Lopingian-early Triassic was induced by global warming. The unique trend change in seawater Sr isotope signatures across the Guadalupian-Lopingian Boundary (GLB) needs to be explained in relation to the unusual climate change associated with a major extinction around the GLB.

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Section: Overall Aspectmentioning

confidence: 96%

Section: Paleogeography Of Sr Isotope Recordsmentioning

confidence: 99%

The Capitanian Minimum: A Unique Sr Isotope Beacon of the Latest Paleozoic Seawater

Kani¹,

Isozaki²

2021

Front. Earth Sci.

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“…However, the glaciation P3 lasted about 2 Myr and was confined to the late Wordian-early Capitanian based on brachiopod shell-based 87 Sr/ 86 Sr calibration (Garbelli et al, 2019). This suggests that the cooling climate in the study area is related to the interglacial transition between the glaciations P2 and P3 and into the glaciation 240 P3 rather than the glaciation P3 in high-latitude eastern Australia (Shen et al, 2020).…”

mentioning

confidence: 87%

Low-latitude climate change linked to high-latitude glaciation during the Late Paleozoic Ice Age: evidence from the terrigenous detrital kaolinite

Zhang

Yang

et al. 2021

Preprint

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Abstract. The Late Paleozoic Ice Age (LPIA; ca. 360–260 million years ago) was one of the most significant glacial events in Earth history that records cycles of ice advance and retreat in southern high-latitude Gondwana and provides a deep-time perspective for climate-glaciation coevolution. However, climate records from the LIPA are poorly understood in low latitudes, particularly in the North China Plate (NCP) on the eastern Palaeo-Tethys. We address this through a detailed mineralogical study of the marine-continental sedimentary succession in the Yuzhou Coalfield from the southern NCP in which we apply Zircon U-Pb dating, biostratigraphy, and high-resolution clay mineral composition to reconstruct latest Carboniferous to early Permian chronostratigraphy and climate change. The Benxi, Taiyuan, and Shanxi formations in the study area are assigned to the Gzhelian, Asselian-Artinskian, and Kungurian-Roadian stages respectively and the Carboniferous Permian lithostratigraphy across NCP recognized as widely diachronous. Detrital micromorphology of kaolinite under scanning electron microscopy and illite crystallization indicates kaolinite contents to be a robust proxy for palaeoclimate reconstruction. Kaolinite data show alternating warm-humid and cool-humid climate conditions that are roughly consistent with the calibrated glacial-interglacial successions recognized in high-latitude eastern Australia, including the glaciations P1 (Asselian-early Sakmarian) and P2 (late Sakmarian-early Artinskian), as well as the climatic transition to glaciation P3 (Roadian). Our results indicate a comparatively cool-humid and warm-humid climate mode in low-latitude NCP during glacial and interglacial periods, and this is a significant step toward connecting climate change in low-latitudes to high-latitude glaciation during the LPIA.

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“…The Capitanian Stage is the uppermost stage of the Guadalupian Series (Middle Permian). It has been widely documented as one of the most critical intervals of the Phanerozoic (Wardlaw, 2000;Zhou et al, 2002;Zhang et al, 2015;Shen et al, 2020). Just before the Capitanian the supercontinent Pangea shifted from assembly to a dispersal stage (Isozaki, 2009;Scotese, 2021).…”

Section: Introductionmentioning

confidence: 99%

The Global Stratotype Section and Point (GSSP) for the base of the Capitanian Stage (Guadalupian, Middle Permian)

et al. 2022

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The Global Stratotype Section and Point (GSSP) for the base of the Capitanian Stage was proposed in 1999 and defined by the first appearance datum (FAD) of the conodont Jinogondolella postserrata within the lineage J. aser-rata→J. postserrata→J. shannoni at Nipple Hill in West Texas, USA. Despite its widespread recognition for more than two decades, the official GSSP paper was not published, nor have its index conodont fossils been properly documented. At Nipple Hill, only the uppermost 0.5 m of the Pinery Member belongs to the Capitanian Stage. J. postserrata first appears at 19.8 m above the base of the auxiliary Frijole section. Based on U-Pb CA-ID-TIMS geochronology of ash beds from the GSSP area, the base of the Capitanian Stage has been constrained at 264.28 ± 0.16 Ma. Magnetostratigraphy suggests that the Illawarra Reversal is located slightly below the base of the Capitanian Stage. Strontium isotope chemostratigraphy generally shows a continuous decline in the 87 Sr/ 86 Sr ratio throughout the Capitanian in the GSSP area, but all ratios are higher than the Capitanian minimum of ~0.7068. δ 13 C carb profile shows no distinct excursion around the Wordian/Capitanian boundary interval. Detailed correlation suggests that the middle-upper part of the fusuline-based Midian Stage correlates with the Capitanian Stage.

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Progress, problems and prospects: An overview of the Guadalupian Series of South China and North America

Cited by 36 publications

References 183 publications

The Capitanian Minimum: A Unique Sr Isotope Beacon of the Latest Paleozoic Seawater

The Capitanian Minimum: A Unique Sr Isotope Beacon of the Latest Paleozoic Seawater

Low-latitude climate change linked to high-latitude glaciation during the Late Paleozoic Ice Age: evidence from the terrigenous detrital kaolinite

The Global Stratotype Section and Point (GSSP) for the base of the Capitanian Stage (Guadalupian, Middle Permian)

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