The end-Permian regression in South China and its implication on mass extinction

Yin, Handong; Jiang, Haishui; Wenchen, Xia; Feng, Qinglai; Zhang, Ning; Shen, Jun

doi:10.1016/j.earscirev.2013.06.003

Cited by 222 publications

(169 citation statements)

References 59 publications

Supporting

Mentioning

147

Contrasting

Unclassified

Order By: Relevance

“…Under such circumstances, regionally extensive carbonate sediment dissolution through contact with an undersaturated solution could have sourced the underlying sediment pile with saturated fluids for cementing (Bathurst, 1975). However, evidence of such exposure in the form of karstification is absent in the studied locations Yin et al, 2014). A recent study on the Meishan section suggests that recrystallization (i.e., zoned dolomite crystals) and the modification of the C isotope composition of certain stratigraphic levels was forced by a short-lived regression and consequential exposure to meteoric water (Li and Jones, 2017).…”

Section: Stochastic Carbon Isotope Signatures Of the Permian-triassicmentioning

confidence: 73%

Latest Permian carbonate carbon isotope variability traces heterogeneous organic carbon accumulation and authigenic carbonate formation

et al. 2017

View full text Add to dashboard Cite

Abstract. Bulk-carbonate carbon isotope ratios are a widely applied proxy for investigating the ancient biogeochemical carbon cycle. Temporal carbon isotope trends serve as a prime stratigraphic tool, with the inherent assumption that bulk micritic carbonate rock is a faithful geochemical recorder of the isotopic composition of seawater dissolved inorganic carbon. However, bulk-carbonate rock is also prone to incorporate diagenetic signals. The aim of the present study is to disentangle primary trends from diagenetic signals in carbon isotope records which traverse the Permian-Triassic boundary in the marine carbonate-bearing sequences of Iran and South China. By pooling newly produced and published carbon isotope data, we confirm that a global first-order trend towards depleted values exists. However, a large amount of scatter is superimposed on this geochemical record. In addition, we observe a temporal trend in the amplitude of this residual δ 13 C variability, which is reproducible for the two studied regions. We suggest that (sub-)sea-floor microbial communities and their control on calcite nucleation and ambient porewater dissolved inorganic carbon δ 13 C pose a viable mechanism to induce bulk-rock δ 13 C variability. Numerical model calculations highlight that early diagenetic carbonate rock stabilization and linked carbon isotope alteration can be controlled by organic matter supply and subsequent microbial remineralization. A major biotic decline among Late Permian bottom-dwelling organisms facilitated a spatial increase in heterogeneous organic carbon accumulation. Combined with low marine sulfate, this resulted in varying degrees of carbon isotope overprinting. A simulated time series suggests that a 50 % increase in the spatial scatter of organic carbon relative to the average, in addition to an imposed increase in the likelihood of sampling cements formed by microbial calcite nucleation to 1 out of 10 samples, is sufficient to induce the observed signal of carbon isotope variability. These findings put constraints on the application of Permian-Triassic carbon isotope chemostratigraphy based on whole-rock samples, which appears less refined than classical biozonation dating schemes. On the other hand, this signal of increased carbon isotope variability concurrent with the largest mass extinction of the Phanerozoic may proPublished by Copernicus Publications on behalf of the European Geosciences Union.

show abstract

Section: Stochastic Carbon Isotope Signatures Of the Permian-triassicmentioning

confidence: 73%

Latest Permian carbonate carbon isotope variability traces heterogeneous organic carbon accumulation and authigenic carbonate formation

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Deposition of the Kayitou Formation corresponds to a shallow coastal terrestrial lagoon evolving towards marine deposition at the Mide section. The general facies progradation observed at all sections may be associated with a regional marine transgression recorded at the beginning of the Triassic (Lehrmann et al, 2007;Yin et al, 2014).…”

Section: Kayitou Formationmentioning

confidence: 96%

Terrestrial paleoenvironment characterization across the Permian–Triassic boundary in South China

Bercovici

Cui

Forel

et al. 2015

Journal of Asian Earth Sciences

View full text Add to dashboard Cite

a b s t r a c tWell-preserved marine fossils in carbonate rocks permit detailed studies of the end-Permian extinction event in the marine realm. However, the rarity of fossils in terrestrial depositional environments makes it more challenging to attain a satisfactory degree of resolution to describe the biotic turnover on land. Here we present new sedimentological, paleontological and geochemical (X-ray fluorescence) analysis from the study of four terrestrial sections (Chahe, Zhejue, Mide and Jiucaichong) in Western Guizhou and Eastern Yunnan (Yangtze Platform, South China) to evaluate paleoenvironmental changes through the Permian-Triassic transition.Our results show major differences in the depositional environments between the Permian Xuanwei and the Triassic Kayitou formations with a change from fluvial-lacustrine to coastal marine settings. This change is associated with a drastic modification of the preservation mode of the fossil plants, from large compressions to small comminuted debris. Plant fossils spanning the Permian-Triassic boundary show the existence of two distinct assemblages: In the Xuanwei Formation, a Late Permian (Changhsingian) assemblage with characteristic Cathaysian wetland plants (mainly Gigantopteris dictyophylloides, Gigantonoclea guizhouensis, G. nicotianaefolia, G. plumosa, G. hallei, Lobatannularia heinanensis, L. cathaysiana, L. multifolia, Annularia pingloensis, A. shirakii, Paracalamites stenocostatus, Cordaites sp.) is identified. In the lowermost Kayitou Formation, an Early Triassic (Induan) Annalepis-Peltaspermum assemblage is shown, associated with very rare, relictual gigantopterids. Palynological samples are poor, and low yield samples show assemblages almost exclusively represented by spores. A 1 m thick zone enriched in putative fungal spores was identified near the top of the Xuanwei Formation, including diverse multicellular forms, such as Reduviasporonites sp. This interval likely corresponds to the PTB ''fungal spike'' conventionally associated with land denudation and ecosystem collapse. While the floral turnover is evident, further studies based on plant diversity would be required in order to assess contribution linked to the end-Permian mass extinction versus local paleoenvironmental changes associated with the transition between the Xuanwei and Kayitou formations.

show abstract

“…High-resolution Late Permian-Early Triassic conodont biostratigraphy (Shen and Mei, 2010;, lithostratigraphy (Cao and Zheng, 2007;Yin et al, 2014), and δ 13 C carb chemostratigraphy allowed us to correlate the sections with the newly revised conodont-based integrated records from the Meishan stratotype section (Yuan et al, 2014) serving as the standard. After thorough evaluation, the published conodont zones from Shangsi Shen et al, 2011Shen et al, , 2013, Daijiagou (Yuan et al, 2015), and Liangfengya (Yuan and Shen, 2011) were directly applied or accordingly modified as biostratigraphic constraints for intraregional correlations (Supplementary Tables S1-4).…”

Section: Biostratigraphic Correlation and Temporal Frameworkmentioning

confidence: 99%

“…Based on this salinity-depth relationship, in a paleoenvironment such as the Yangtze carbonate platform and its northern marginal basin (Yin et al, 2014), dramatic sea-level changes that would have caused major shift in salinity (Adkins et al, 2002) sufficient to alter the local δ 18 O seawater seem unlikely. Consequently, we presume that the influence of salinity on δ 18 O seawater was probably minimal.…”

mentioning

confidence: 99%

High-resolution SIMS oxygen isotope analysis on conodont apatite from South China and implications for the end-Permian mass extinction

Chen

Shen

et al. 2016

Palaeogeography, Palaeoclimatology, Palaeoecology

148

View full text Add to dashboard Cite

Understanding the interplay of climatic and biological events in deep time requires resolving the precise timing and pattern of paleotemperature changes and their temporal relationship with carbon cycle variations and biodiversity fluctuations. In situ oxygen isotope analyses of conodont apatite from South China enables us to reconstruct high-resolution seawater temperature records across the Permian-Triassic boundary (PTB) intervals in the upper slope (Meishan), lower slope (Shangsi), and carbonate platform (Daijiagou and Liangfengya) settings. Constrained by the latest high-precision geochronological dates and high-resolution conodont biozones, we can establish the temporal and spatial patterns of seawater temperature changes and assess their potential connections with the carbon cycle disruption and biodiversity decline. We find a rapid warming of~10°C during the latest Permian-earliest Triassic that postdated the onset of the negative shift in δ 13 C carb by~81 kyr (thousand years), the abrupt decline in δ 13 C carb by~32 kyr and the onset of mass extinction by~23 kyr, which contradicts previous claims that the extreme temperature rise started immediately before or coincided with the onset of mass extinction. Our new evidence indicates that climate warming was most likely not a direct cause for the main pulse of the end-Permian mass extinction (EPME), but rather a later participant or a catalyst that increased the pace of the biodiversity decline. In addition, a prominent cooling is recorded in the earliest Changhsingian, with the main phase (a drop of~8°C in~0.2 Ma) confined to the lower part of the Clarkina wangi zone and synchronous with the positive limb of the carbon isotope excursion (CIE) around the Wuchiapingian-Changhsingian boundary (WCB) in Meishan and Shangsi. Further long-term and high-resolution studies from other sections are needed to confirm the full contexts and underlying dynamics of the WCB "cooling event".

show abstract

The end-Permian regression in South China and its implication on mass extinction

Cited by 222 publications

References 59 publications

Latest Permian carbonate carbon isotope variability traces heterogeneous organic carbon accumulation and authigenic carbonate formation

Latest Permian carbonate carbon isotope variability traces heterogeneous organic carbon accumulation and authigenic carbonate formation

Terrestrial paleoenvironment characterization across the Permian–Triassic boundary in South China

High-resolution SIMS oxygen isotope analysis on conodont apatite from South China and implications for the end-Permian mass extinction

Contact Info

Product

Resources

About