Guadalupian (Middle Permian) ocean redox evolution in South China and its implications for mass extinction

Wei, Hengye; Tang, Zhanwen; Yan, Detian; Wang, Jianguo; Roberts, Andrew P.

doi:10.1016/j.chemgeo.2019.119318

Cited by 21 publications

(19 citation statements)

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“…The large pyrite framboids, polyframboids, and sediments inclusions in framboids reflect a digenetic origin of framboid in the Wuchiaping and Changhsing formations (Figure 4), indicating a non‐euxinic environment (Wei, Tang, Yan, Wang, & Roberts, 2019; Wei, Wei, Qiu, Song, & Shi, 2016). The second growth of framboids, which show infilled framboids and overgrown framboids (Figure 4h–j) suggest a continued microbial sulphate reduction process during later diagenesis process, which is often seen in the non‐euxinic environments.…”

Section: Discussionmentioning

confidence: 96%

Chemostratigraphy and pyrite morphology across theWuchiapingian‐Changhsingianboundary in the Middle Yangtze Platform, South China

Wei

Tang

et al. 2021

Geological Journal

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Handling Editor: C. Cao Separated mass extinction occurred at the beginning and the ending of the Late Permian, called end-Guadalupian and end-Permian mass extinctions, respectively. Palaeoenvironmental changes in the middle of the Late Permian could give more insights into the environmental causes for the Permian extinctions. In this contribution, we analysed carbonate carbon isotope and carbonate-associated-sulphate sulphur isotope compositions to constrain the carbon and sulphur cycles across the Wuchiapingian-Changhsingian boundary (WCB) at Yanglinqiao in Zigui in the Middle Yangtze Platform.Pyrite morphology and pyrite framboids size distribution were used to analyse redox conditions variations across the WCB. Our results show that an episodic euxinia event occurred across the WCB. This anoxic/euxinic event across the WCB was a global event, and was mainly caused by the upwelling during the cooling event. Both inorganic-and organic-carbon isotopic compositions show covariance of a negative shift across the WCB at Yanglinqiao and other places in South China. This carbon-isotopic negative excursion across the WCB was a regional carbon cycle perturbation and may be linked to the light-carbon input from the upwelling water mass. Although the seawater δ 34 S across the WCB recorded a negative excursion in two locations in South China, it reflects the riverine input of 32 S-enriched sulphate and represent a regional signal.These environmental anomalies such as oceanic anoxia/euxinia, global carbon cycle perturbation, cooling, end of the Emeishan large igneous province movement across the WCB may have delayed the recovery from the end-Guadalupian mass extinction.

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Section: Discussionmentioning

confidence: 96%

Chemostratigraphy and pyrite morphology across theWuchiapingian‐Changhsingianboundary in the Middle Yangtze Platform, South China

Wei

Tang

et al. 2021

Geological Journal

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“…Diverse indicators (e.g., radiolarian palaeoecology, pyrite petrography and trace metal enrichment) indicate the Kuhfeng Formation was deposited in suboxic-euxinic conditions from the Roadian to early Capitanian, in basins surrounding the northern to eastern part of the YCP (Fig. 16H-a, b, c) (Saitoh et al, 2013b;Shi et al, 2016;Cao et al, 2018;Wei et al, 2019). In contrast, shallow-water areas remained oxygenated during this time (Wei et al, 2019).…”

Section: Guadalupian Environmental Conditions For Carbonate Platform ...mentioning

confidence: 98%

“…(G) Extinction levels of different fossil groups summarized from Wang and Sugiyama (2001), Weidlich (2002a), Ota and Isozaki (2006), Isozaki and Aljinović (2009), Shen and Shi (2009), Bond et al (2010a) and Huang et al (2018). (H) Comparison of marine redox conditions in: a -central Anhui (Wei et al, 2019;Zhang et al, 2019a); b -western Hubei (Shi et al, 2016;Wei et al, 2016) and central Guizhou (Wignall et al, 2009a); c -northern Sichuan (Saitoh et al, 2013b); d -central Guangxi (Zhang et al, 2015;Wei et al, 2016); e -West Texas (Zhang et al, 2015); f -Spitsbergen and Arctic Canada (Bond et al, 2015;Bond et al, 2019). (I) Volcanism of the ELIP from Sun et al (2010) and Wu et al (2020).…”

Section: Guadalupian Environmental Conditions For Carbonate Platform ...mentioning

confidence: 99%

Stratigraphy of the Guadalupian (Permian) siliceous deposits from central Guizhou of South China: Regional correlations with implications for carbonate productivity during the Middle Permian biocrisis

Xue

Chen

Yan

et al. 2022

Earth-Science Reviews

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“…Hypoxic condition in seawater is another threat to the giant clams. The Late Guadalupian to Early Lopingian marine oxygen‐deficient depositions have been widely reported from South China, Panthalassa, North America, and Europe (Bond, Wignall, & Grasby, 2020; Isozaki, 1997; Wei et al, 2019). At the eastern palaeo‐Tethys margin and North America, an extensive anoxic condition possibly extended to the shallow‐water shelfs in the late Capitanian, as a result of the high primary productivity stimulated by the widespread coastal up‐welling (B. Zhang et al, 2018; G. Zhang et al, 2015).…”

Section: Significance Of the Giant Bivalves For Understanding The End‐guadalupian Extinctionmentioning

confidence: 99%

“…At the same time, the Earth gradually entered greenhouse–hothouse climate from the Late Palaeozoic Ice Age (LPIA; Fielding et al, 2008). As for the palaeoceanography, the huge phosphorite deposits, equivalent to five to six times the total phosphorus content in today's ocean, accumulated at the east of the low‐latitude Panthalassa (Hiatt & Budd, 2001), oceanic anoxia and acidification occurred globally (Bond et al, 2015; Fujisaki et al, 2019; Wei, Tang, Yan, Wang, & Roberts, 2019), and chert expanded worldwide accompanied by the decrease of carbonate depositions (Permian Chert Event; Beauchamp & Grasby, 2012; Murchey & Jones, 1992). The biological evolution of this period is featured by the poleward expansion of the warm‐water faunas with the end of the LPIA and the end‐Guadalupian mass extinction (Campi, 2012).…”

Section: Introductionmentioning

confidence: 99%

The implications of the giant bivalve family Alatoconchidae for the end‐Guadalupian (Middle Permian) extinction event

2021

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The end-Guadalupian extinction is an important biotic event in the Phanerozoic with an ecological impact comparable to the 'big five' extinctions. However, the age, pattern, and mechanism of this extinction are all under debate. The bivalves of the Alatoconchidae family attained body volumes up to 10,000 cm 3 and had a wide distribution in the low latitude Palaeotethys and Panthalassa. These giant clams originated in the early Kungurian and went extinct in the Late Guadalupian. Therefore, they are the typical victims of the end-Guadalupian extinction and are major index fossils for the understanding of this event. Although extraction of these giant bivalves from the host-resistant limestone is hard, plenty of new-found transverse sections on outcrops are available for morphological reconstruction and volume estimation. The measurement from the representative fossil localities in South China indicates the clams achieved a substantial volume increase during the Wordian and sustained the giant size to the late Capitanian, till their abrupt disappearance. The giant clams originated under atmospheric hyperoxia and warm climate after the Late Palaeozoic Ice Age. Their body volume increase was roughly parallel to the seawater warming. The accompanied high seawater carbonate saturation and Mg/Ca ratio are beneficial to their biomineralization of the large shells with aragonite or high-Mg calcite components. On the contrary, these giant bivalves were probably killed by the major or rapid changes of those environmental factors that once facilitated their success, such as drastic fluctuation of seawater temperature, sudden ocean acidification, and marine anoxia.

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Guadalupian (Middle Permian) ocean redox evolution in South China and its implications for mass extinction

Cited by 21 publications

References 100 publications

Chemostratigraphy and pyrite morphology across theWuchiapingian‐Changhsingianboundary in the Middle Yangtze Platform, South China

Chemostratigraphy and pyrite morphology across theWuchiapingian‐Changhsingianboundary in the Middle Yangtze Platform, South China

Stratigraphy of the Guadalupian (Permian) siliceous deposits from central Guizhou of South China: Regional correlations with implications for carbonate productivity during the Middle Permian biocrisis

The implications of the giant bivalve family Alatoconchidae for the end‐Guadalupian (Middle Permian) extinction event

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