Lower Triassic ostracods (Crustacea) from the Meishan section, Permian–Triassic boundary GSSP (Zhejiang Province, South China)

2011 ◽  
Vol 9 (3) ◽  
pp. 455-466 ◽  
Author(s):  
Marie-Béatrice Forel ◽  
Sylvie Crasquin
Keyword(s):  
South China ◽  
Lower Triassic ◽  
Zhejiang Province ◽  
Triassic Boundary ◽  
Meishan Section ◽  
Permian Triassic Boundary

Ostracods (Crustacea) through the Permian-Triassic boundary in South China: the Meishan stratotype (Zhejiang Province)

2010 ◽  
Vol 8 (3) ◽  
pp. 331-370 ◽  
Author(s):  
Sylvie Crasquin ◽  
Marie-Béatrice Forel ◽  
Feng Qinglai ◽  
Yuan Aihua ◽  
François Baudin ◽  
...  
Keyword(s):  
South China ◽  
Zhejiang Province ◽  
Triassic Boundary ◽  
Permian Triassic Boundary

Brachiopod assemblages from the Upper Permian and Permian–Triassic boundary beds, South China

1980 ◽  
Vol 17 (2) ◽  
pp. 289-295 ◽  
Author(s):  
Liao Zhuo-Ting
Keyword(s):  
South China ◽  
Large Degree ◽  
Lower Triassic ◽  
Upper Permian ◽  
Triassic Boundary ◽  
Assemblage Zone ◽  
Abundance And Diversity ◽  
Permian Triassic Boundary

Uppermost Permian (Changhsingian) brachiopods are abundant and diverse in South China; thus far, 60 genera and 130 species have been described from the Changhsing Formation. Two distinctive brachiopod faunas can readily be identified from a single Changhsingian zone, the Peltichia zigzag–Paryphella sulcatifera Assemblage Zone. The abundance and diversity of the faunas are controlled to a large degree by lithofacies. The Peltichia zigzag, Spinomarginifera alpha fauna occurs in a limestone facies and the Paryphella sulcatifera, Paracrurithyris pigmea fauna occurs in a clastic (siliceous) facies. At many locations in South China, a "mixed fauna," containing Permian-like brachiopods and Lower Triassic ammonoids and bivalves, occurs directly above the Permian–Triassic boundary. The association of Permian elements mixed with Triassic elements suggests that deposition was more or less continuous across the Permian Triassic boundary and that an unconformity does not occur at the boundary in much of South China.

Determination of Fullerenes (C60/C70) from the Permian-Triassic Boundary in the Meishan Section of South China

2005 ◽  
Vol 79 (1) ◽  
pp. 11-15 ◽  
Author(s):  
LI Yanfang ◽  
LIANG Handong ◽  
YIN Hongfu ◽  
SUN Jing ◽  
CAI Hou'an ◽  
...  
Keyword(s):  
South China ◽  
Triassic Boundary ◽  
Meishan Section ◽  
Permian Triassic Boundary

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.

Provenance of the Permian–Triassic boundary volcanic ash beds in South China

2021 ◽  
Author(s):  
Zhenyang Zhao ◽  
Shuangjian Li ◽  
Genhou Wang ◽  
Jian Gao ◽  
Tianbo Yang ◽  
...  
Keyword(s):  
South China ◽  
Volcanic Ash ◽  
Triassic Boundary ◽  
Permian Triassic Boundary
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