Early Triassic benthic invertebrates from the Great Bank of Guizhou, South China: systematic palaeontology and palaeobiology

2019 ◽  
Vol 5 (4) ◽  
pp. 613-656 ◽  
Author(s):  
William J. Foster ◽  
Daniel J. Lehrmann ◽  
Jaime A. Hirtz ◽  
Mackenzie White ◽  
Meiyi Yu ◽  
...  
Keyword(s):  
South China ◽  
Benthic Invertebrates ◽  
Early Triassic ◽  
Systematic Palaeontology

scholarly journals Early Triassic microbialites from the Changxing Region of Zhejiang Province, South China

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Ya-Fei Huang ◽  
David P. G. Bond ◽  
Yong-Biao Wang ◽  
Tan Wang ◽  
Zhi-Xing Yi ◽  
...  
Keyword(s):  
South China ◽  
Zhejiang Province ◽  
Early Triassic

Nature and origin of the volcanic ash beds near the Permian–Triassic boundary in South China: new data and their geological implications

2019 ◽  
Vol 157 (4) ◽  
pp. 677-689 ◽  
Author(s):  
Binsong Zheng ◽  
Chuanlong Mou ◽  
Renjie Zhou ◽  
Xiuping Wang ◽  
Zhaohui Xiao ◽  
...  
Keyword(s):  
Trace Element ◽  
Continental Margin ◽  
South China ◽  
Volcanic Ash ◽  
Active Continental Margin ◽  
Main Body ◽  
Early Triassic ◽  
Late Permian ◽  
Triassic Boundary ◽  
Permian Triassic Boundary

AbstractPermian–Triassic boundary (PTB) volcanic ash beds are widely distributed in South China and were proposed to have a connection with the PTB mass extinction and the assemblage of Pangea. However, their source and tectonic affinity have been highly debated. We present zircon U–Pb ages, trace-element and Hf isotopic data on three new-found PTB volcanic ash beds in the western Hubei area, South China. Laser ablation inductively coupled plasma mass spectrometry U–Pb dating of zircons yields ages of 252.2 ± 3.6 Ma, 251.6 ± 4.9 Ma and 250.4 ± 2.4 Ma for these three volcanic ash beds. Zircons of age c. 240–270 Ma zircons have negative εHf(t) values (–18.17 to –3.91) and Mesoproterozoic–Palaeoproterozoic two-stage Hf model ages (THf2) (1.33–2.23 Ga). Integrated with other PTB ash beds in South China, zircon trace-element signatures and Hf isotopes indicate that they were likely sourced from intermediate to felsic volcanic centres along the Simao–Indochina convergent continental margin. The Qinling convergent continental margin might be another possible source but needs further investigation. Our data support the model that strong convergent margin volcanism took place around South China during late Permian – Early Triassic time, especially in the Simao–Indochina active continental margin and possibly the Qinling active continental margin. These volcanisms overlap temporally with the PTB biocrisis triggered by the Siberian Large Igneous Province. In addition, our data argue that the South China Craton and the Simao–Indochina block had not been amalgamated with the main body of Pangea by late Permian – Early Triassic time.

scholarly journals Calibrating the late Smithian (Early Triassic) crisis: New insights from the Nanpanjiang Basin, South China

2021 ◽  
pp. 103492
Author(s):  
Xu Dai ◽  
Zhiwei Yuan ◽  
Arnaud Brayard ◽  
Mingtao Li ◽  
Xiaokang Liu ◽  
...  
Keyword(s):  
South China ◽  
Early Triassic

Early and Middle Triassic trends in diversity, evenness, and size of foraminifers on a carbonate platform in south China: implications for tempo and mode of biotic recovery from the end-Permian mass extinction

Paleobiology ◽  
2011 ◽  
Vol 37 (3) ◽  
pp. 409-425 ◽  
Author(s):  
Jonathan L. Payne ◽  
Mindi Summers ◽  
Brianna L. Rego ◽  
Demir Altiner ◽  
Jiayong Wei ◽  
...  
Keyword(s):  
South China ◽  
Mass Extinction ◽  
Evolutionary Dynamics ◽  
Middle Triassic ◽  
Carbonate Platform ◽  
Early Triassic ◽  
Data Set ◽  
Recovery Pattern ◽  
Biotic Recovery ◽  
Permian Mass Extinction

Delayed biotic recovery from the end-Permian mass extinction has long been interpreted to result from environmental inhibition. Recently, evidence of more rapid recovery has begun to emerge, suggesting the role of environmental inhibition was previously overestimated. However, there have been few high-resolution taxonomic and ecological studies spanning the full Early and Middle Triassic recovery interval, leaving the precise pattern of recovery and underlying mechanisms poorly constrained. In this study, we document Early and Middle Triassic trends in taxonomic diversity, assemblage evenness, and size distribution of benthic foraminifers on an exceptionally exposed carbonate platform in south China. We observe gradual increases in all metrics through Early Triassic and earliest Middle Triassic time, with stable values reached early in the Anisian. There is little support in our data set for a substantial Early Triassic lag interval during the recovery of foraminifers or for a stepwise recovery pattern. The recovery pattern of foraminifers on the GBG corresponds well with available global data for this taxon and appears to parallel that of many benthic invertebrate clades. Early Triassic diversity increase in foraminifers was more gradual than in ammonoids and conodonts. However, foraminifers continued to increase in diversity, size, and evenness into Middle Triassic time, whereas diversity of ammonoids and conodonts declined. These contrasts suggest decoupling of recovery between benthic and pelagic environments; it is unclear whether these discrepancies reflect inherent contrasts in their evolutionary dynamics or the differential impact of Early Triassic ocean anoxia or associated environmental parameters on benthic ecosystems.

Early Triassic conodont–palynological biostratigraphy of the Meishan D Section in Changxing, Zhejiang Province, South China

2007 ◽  
Vol 252 (1-2) ◽  
pp. 4-23 ◽  
Author(s):  
Kexin Zhang ◽  
Jinnan Tong ◽  
G.R. Shi ◽  
Xulong Lai ◽  
Jianxin Yu ◽  
...  
Keyword(s):  
South China ◽  
Zhejiang Province ◽  
Early Triassic

scholarly journals High amplitude redox changes in the late Early Triassic of South China and the Smithian–Spathian extinction

2015 ◽  
Vol 427 ◽  
pp. 62-78 ◽  
Author(s):  
Y.D. Sun ◽  
P.B. Wignall ◽  
M.M. Joachimski ◽  
D.P.G. Bond ◽  
S.E. Grasby ◽  
...  
Keyword(s):  
South China ◽  
High Amplitude ◽  
Early Triassic

CARBONATE FACIES CHANGES FROM THE LATE PERMIAN TO THE EARLY TRIASSIC FOR THREE NEW LOCALITIES IN THE NANPANJIANG BASIN, SOUTH CHINA

2017 ◽  
Author(s):  
Maigan Dunlap ◽  
◽  
Fawn Last ◽  
Daniel J. Lehrmann
Keyword(s):  
South China ◽  
Early Triassic ◽  
Late Permian ◽  
Carbonate Facies ◽  
New Localities
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