Unusual shallow marine matground-adapted benthic biofacies from the Lower Triassic of the northern Paleotethys: Implications for biotic recovery following the end-Permian mass extinction

Feng, Xueqian; Chen, Zhong‐Qiang; Bottjer, David J.; Wu, Siqi; Zhao, Laishi; Xu, Yonghang; Shi, Gen-hua; Huang, Yuangeng; Fang, Yuheng; Tu, Chenyi

doi:10.1016/j.earscirev.2018.07.012

Cited by 24 publications

(15 citation statements)

References 133 publications

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“…The primary productivities of the source rocks from the Chuanlinggou and Hongshuizhuang formations are similar, yielding mean values ranging from 668 to 1,094 gC/(m 2 y), and may locate in the range of the upwelling area in the modern ocean (Figure 7; Thurman & Trujillo, 2004). The relatively high palaeo‐productivity of the Chuanlingou Formation is strengthened by the findings of abundant microbial communities that were interpreted as major constructors of the pronounced wrinkle structures in the same formation at outcrop (Yang et al, 2017), and these microbial mat‐building micro‐organisms are believed as ideal primary producers in the Precambrian and Phanerozoic marine ecosystems (Chen et al, 2014, 2019; Chen & Benton, 2012; Feng et al, 2019; Lan & Chen, 2013; Lan, Chen, Li, & Kaiho, 2013; Xu et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Main controlling factors of organic matter enrichment of the Mesoproterozoic source rocks from the North China Craton

et al. 2020

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Despite the discovery of dozens of primary Mesoproterozoic petroleum fields with a large amount of petroleum reservoirs, which were not considered to be exploration targets previously, little information is available on the main controlling factors of the organic matter enrichment of the Mesoproterozoic source rocks. In this study, based on geochemical element and total organic carbon (TOC) analyses of samples collected from four sets of the Mesoproterozoic source rocks in the North China Craton (NCC), namely, the Cuizhuan, Chuanlinggou, Hongshuizhuang, and Xiamaling formations, an attempt was made to determine the primary productivity and redox conditions during the deposition of these stratigraphic units. The quantitative primary productivity (PP) indicated that the palaeo‐productivity was moderate to high during the deposition of the Xiamaling, Chuanlinggou, and Hongshuizhuang formations, all of which coincide with upwelling areas, and the palaeo‐productivity was low during the deposition of the Cuizhuan Formation, which correspond to continental shelf or open ocean. The vanadium versus chromium, the nickel versus chromium, the enrichment factor of molybdenum versus that of uranium, and the pristane versus phytane ratios indicate that the source rocks of the Hongshuizhuang and Xiamaling formations were accumulated in anoxic‐sulphidic environments; however, most source rocks of the Cuizhuan and Chuanlinggou formations were accumulated in oxic‐suboxic settings. High TOC values are only exhibited in the source rocks from the Hongshuizhuang and Xiamaling formations, suggesting that the organic matter enrichment degree in the Mesoproterozoic source rocks was likely controlled by both the PP and consequent bottom‐water redox conditions.

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Section: Resultsmentioning

confidence: 99%

Main controlling factors of organic matter enrichment of the Mesoproterozoic source rocks from the North China Craton

et al. 2020

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“…Skolithos are presently interpreted as dwelling burrows (domichnia), produced by annelids or phoronids (Alpert, 1974;Droser & Bottjer, 1991). It is one of the most widely reported ichnogenera, occurring globally in Palaeozoic to Cenozoic strata, representing relatively high-energy shallow marine settings (Feng et al, 2019(Feng et al, , 2021Knaust et al, 2018). Remarks: Ophiomorpha, Spongeliomorpha, and Thalassinoides are all three-dimensional branching systems, possessing very similar morphological characteristics.…”

Section: Skolithos Linearis Haldemann 1840mentioning

confidence: 99%

Section: Synopsis Of Trace Fossilsmentioning

confidence: 99%

“…Trace fossils, as records of benthic organisms' behaviours, can provide significant palaeonvironmental and palaeoecological information on infauna, which is not available from body fossil records (Buatois & Mángano, 2011). As an important ecological measurer, ichnofossils have been successfully applied to reconstruct palaeoenvironmental evolutions and recovery process of marine ecosystems following the EPME in South China (Chen et al, 2015; Chen, Tong, & Fraiser, 2011; Feng et al, 2018, 2019; Feng, Chen, Woods, & Fang, 2017a; Luo, George, & Chen, 2016; Luo, Shi, Buatois, & Chen, 2020; Luo, Shi, Buatois, & Chen, 2021; Zhao et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Trace fossils from the Permian Lopingian Talung Formation at the northern Penglaitan section of Laibin area, South China: Ichnology, palaeoenvironment, and palaeoecology

Ding

Duan

et al. 2021

Geological Journal

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The end-Permian mass extinction was the largest biotic crisis in the Phanerozoic. Previous studies of this catastrophe have mainly concentrated on geochemistry or body fossil records. The Changhsingian Talung Formation strata exposed in the Penglaitan section, the Global Stratotype Section and Point for the GuadalupianÀLopingian boundary in Laibin, South China, yield abundant trace fossils that have not been systematically described yet. Herein, we report abundant ichnotaxa from the Talung Formation, including 12 ichnospecies in 10 ichnogenera: Didymaulichnus isp., Helicorhaphe tortilis, Nereites isp., Palaeophycus isp., Planolites beverleyensis, Planolites montanus, Protovirgularia dichotoma, Protovirgularia longespicata, Rusophycus isp., Skolithos linearis, Thalassinoides isp., and Treptichnus isp. They can be assigned to two ichnoassemblages: the NereitesÀPlanolites (beds 18-45) and ProtovirgulariaÀSkolithos (beds 46-59) ichnoassemblages. Ichnological and sedimentological features indicate that the former ichnoassemblage was probably developed in a deep-marine turbidite setting, while the latter ichnoassemblage represents an ichnofossil record from a shallow marine environment, that is, subtidal to supratidal zones. In addition, the continuous ichnological records spanning from the Wuchiapingian to Changhsingian, together with facies features show a distinct regression, and they also indicate that diverse trace makers, such as arthropods, bivalves, and worms may have inhabited the Lopingian ocean, with no sign of the long-term environmental deterioration in the studied area.

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“…Most MISS reports in North China mainly occur in the Precambrian strata, including the Meso-and Neo-Proterozoic Ruyang and Luoyu groups in western Henan, the Mesoproterozoic Changzhougou Formation in Shanxi, the Mesoproterozoic Dahongyu and Chuanlinggou formations in Hebei, and the Mesoproterozoic Huangqikou Formation in Helan Mountain (Chen, 2013;Huang, Zhang, Zhou, & Liu, 2010;Lan, Chen, Li, & Kaiho, 2013;Lan, Li, & Li, 2015;Li, 2011;Shi et al, 2008;Tang et al, 2011;Xing, Qi, & Zheng, 2010;Yang et al, 2017;Zheng & Xing, 2015), and the Early Triassic strata, including the Sunjiagou Formation in Xingyang and Jiyuan western Henan, the Liujiagou Formation in Yiyang western Henan and Liulin Shanxi, the Xiahuancang Formation in Zhihema Qinghai (Chu et al, 2015(Chu et al, , 2017Feng et al, 2019;Zheng et al, 2016Zheng et al, , 2017. However, little is known about MISS in the early Cambrian siliciclastic rocks in North China.…”

Section: Introductionmentioning

confidence: 99%

Microbially induced sedimentary structures from the Xinji Formation (Cambrian Series 2), Western Henan, North China

et al. 2021

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Abundant well-preserved microbially induced sedimentary structures (MISS) are exposed in the Xinji Formation, the earliest Cambrian sedimentary unit in North China. The MISS herein are categorized into microbial mat growth structure (wrinkle structures and mat biolaminites) and microbial mat destruction structure (sand cracks and 'Manchuriophycus' structures). The MISS developed on the surface of thick quartz sandstones, as well as the lithologic interface between thin sandstone and mudstone. Most of the sand cracks lack the direct evidence of microbial activities, whereas the mat biolaminites that consist of filamentous mica, clay minerals, and quartz grains may record the in situ microbial mats. The Xinji Formation deposited along with the Cambrian explosion when biodiversity and abundance of metazoan stayed relatively low. Besides, the intermittently exposed tidal flats are not the ideal place for early life, which exacerbated the ecological vacuum therein. The massive occurrence of the MISS in the siliciclastic rocks of the Xinji Formation indicated that the tidal flat setting during this period was still beneficial for accumulations of microbial mat because of the deficient grazing metazoans and weak bioturbation.

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Unusual shallow marine matground-adapted benthic biofacies from the Lower Triassic of the northern Paleotethys: Implications for biotic recovery following the end-Permian mass extinction

Cited by 24 publications

References 133 publications

Main controlling factors of organic matter enrichment of the Mesoproterozoic source rocks from the North China Craton

Main controlling factors of organic matter enrichment of the Mesoproterozoic source rocks from the North China Craton

Trace fossils from the Permian Lopingian Talung Formation at the northern Penglaitan section of Laibin area, South China: Ichnology, palaeoenvironment, and palaeoecology

Microbially induced sedimentary structures from the Xinji Formation (Cambrian Series 2), Western Henan, North China

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