Isolation and re‐connection: demographic history and multiple contact zones of the Green Odorous Frog ( Odorrana margaretae ) around the Sichuan Basin

2021 ◽  
Author(s):  
Guannan Wen ◽  
Jinzhong Fu
Keyword(s):  
Sichuan Basin ◽  
Demographic History ◽  
Contact Zones ◽  
The Sichuan Basin

Heat production of sedimentary rocks in the Sichuan basin, Southwest China

2018 ◽  
Vol 52 (5) ◽  
pp. 401-413 ◽  
Author(s):  
Chuanqing Zhu ◽  
Ming Xu ◽  
Nansheng Qiu ◽  
Shengbiao Hu
Keyword(s):  
Heat Production ◽  
Sichuan Basin ◽  
Southwest China ◽  
Sedimentary Rocks ◽  
The Sichuan Basin

scholarly journals New freshwater plesiosaurian materials from the Middle Jurassic Xintiangou Formation of the Sichuan Basin, southwestern China

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Feng Zhang ◽  
Hai-Dong Yu ◽  
Can Xiong ◽  
Zhao-Ying Wei ◽  
Guang-Zhao Peng ◽  
...  
Keyword(s):  
Middle Jurassic ◽  
Sichuan Basin ◽  
Southwestern China ◽  
The Sichuan Basin

scholarly journals Characteristics of Mineralogy, Lithofacies of Fine-Grained Sediments and Their Relationship with Sedimentary Environment: Example from the Upper Permian Longtan Formation in the Sichuan Basin

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3662
Author(s):  
Hongzhi Yang ◽  
Liangbiao Lin ◽  
Liqing Chen ◽  
Yu Yu ◽  
Du Li ◽  
...  
Keyword(s):  
Mineral Composition ◽  
Sichuan Basin ◽  
Sedimentary Environment ◽  
Organic Matter Content ◽  
Upper Permian ◽  
Carbonaceous Shale ◽  
Carbonate Minerals ◽  
Thin Sections ◽  
Terrestrial Input ◽  
The Sichuan Basin

The Longtan Formation of the Upper Permian in the Sichuan Basin has become a significant target for shale gas exploration in recent years. Multiple methods, including outcrop observations, thin sections, total organic matter content, X-ray diffraction and scanning electron microscopy were used to investigate the mineralogy, shale lithofacies assemblages and their relationships with the deposition environment. The mineral composition of the Longtan Formation has strong mineral heterogeneity. The TOC values of the Longtan Formation have a wide distribution range from 0.07% to 74.67% with an average value of 5.73%. Four types of shale lithofacies assemblages of the Longtan Formation could be distinguished, as clayey mudstone (CLS), carbonaceous shale (CAS), siliceous shale (SS) and mixed shale (MS) on the basis of mineral compositions. The TOC values of various types of shale lithofacies assemblages in the Longtan Formation varied widely. The shore swamp of the Longtan Formation is most influenced by the terrestrial input and mainly develops CLS and MS. The tidal flat is influenced by the terrestrial input and can also deposit carbonate minerals, developing CLS, CAS and MS. The shallow water melanged accumulation shelf develops CAS and MS, dominated by clay and carbonate minerals. The deep water miscible shelf develops CLS and SS, whose mineral composition is similar to that of the shore swamp, but the quartz minerals are mainly formed by chemical and biological reactions, which are related to the Permian global chert event. The depositional environment of the Longtan Formation controls the shale mineral assemblage of the Longtan Formation and also influences the TOC content.

scholarly journals Study on the distribution of sulfur-bearing formations in the Sichuan Basin and its damage to tunnel engineering

2021 ◽  
Vol 703 (1) ◽  
pp. 012030
Author(s):  
Peidong Su ◽  
Yi Zhao ◽  
Zhengxuan Xu ◽  
Yuben Du ◽  
Peng Qiu ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
Tunnel Engineering ◽  
The Sichuan Basin
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