Results 131 to 140 of about 1,278 (244)

The unique skeleton of siliceous sponges (Porifera; Hexactinellida and Demospongiae) that evolved first from the Urmetazoa during the Proterozoic: a review

, 2007
International audienceSponges (phylum Porifera) had been considered as an enigmatic phylum, prior to the analysis of their genetic repertoire/tool kit.
Li, J., Müller, W. E. G., Qiao, L., Schröder, H. C., Wang, X.   +4 more
core  

The evolution of the Sinian–Early Cambrian E’xi Trough in the Central Yangtze region and its geological significance for natural gas

Dizhi lixue xuebao
Objective  From the Neoproterozoic Sinian to the Early Cambrian periods, extensive basins in South China accumulated substantial volumes of organic-rich shale and carbonate rocks, providing high-quality source rocks and reservoirs.
CHEN Ke, LU Yanxin, WANG Yuluo, LI Fei
doaj   +1 more source

Organic geochemistry of marine source rocks and pyrobitumen-containing reservoir rocks of the Sichuan Basin and neighbouring areas, SW China [PDF]

, 2014
Chen, Jianping, Fu, Xiaodong, Jin, Xiaodong, Li, Ertin, Pan, Changchun, Qin, Jianzhong, Tan, Yuming, Wang, Jun, Wang, Lansheng, Xie, Zengye, Yu, Shuang, Zheng, Ping   +11 more
core   +1 more source

Hydrocarbon sources and accumulation processes in intra-platform of the fourth member of Dengying Formation in northern Sichuan Basin

Shiyou shiyan dizhi
The intra-platform of the fourth member of the Dengying Formation in the Upper Sinian of the Sichuan Basin is an important area for gas exploration. To clarify the hydrocarbon accumulation and enrichment patterns and distribution characteristics in this ...
Yi YANG, Xiang ZHU, Lei ZHANG, Zuxin XU, Lincheng DAI   +4 more
doaj   +1 more source

Effectiveness Log Evaluation of Ultra-Deep Carbonate Reservoirs Based on Multi-Scale Fracture-Cave Parameter

Cejing jishu
The ultra-deep carbonate reservoirs in member 2 of the Dengying formation in the Penglai gas area of the Sichuan basin exhibit lithological diversity, developed fractures and dissolution pores/caves, low matrix porosity, and strong heterogeneity.
YIN Rong, SUI Xiuying, LAI Qiang, WANG Xiyu, WU Yiyu, YI Hongmei   +5 more
doaj   +1 more source

The Quanjishan Charnia assemblage from the northern Qaidam Basin, Tibetan Plateau, and implications for palaeoecology and taphonomy of Ediacaran fronds [PDF]

The late Ediacaran Quanjishan macrofossil assemblage of northwest China is one of the oldest fossil assemblages yet discovered in the Tibetan Plateau. It contains numerous specimens of the iconic and long-ranging soft-bodied rangeomorph Charnia, and the ...

core   +2 more sources

Modeling free gas content of the Lower Paleozoic shales in the Weiyuan area of the Sichuan Basin, China [PDF]

, 2014
Pan, Lei, Tian, Hui, Xiao, Xianming, Zhou, Qin   +3 more
core   +1 more source

Reconstruction of Ediacaran to Early Cambrian ocean pH and weathering conditions [PDF]

, 2014
This dissertation deals with the reconstruction of ocean pH conditions and the quantification of weathering rates by boron and strontium isotope analyses on Ediacaran and Early Cambrian marine carbonate rocks.
Ohnemüller, Frank
core  

Accurate sectional and differential acidizing technique to highly deviated and horizontal wells for low permeable Sinian Dengying formation in Sichuan Basin of China [PDF]

, 2022
Song Li, Yu Fan, Jian Yang, Liqiang Zhao, Jiexiao Ye, Weihua Chen   +5 more
openalex   +1 more source

Taphonomic Analysis of the Sinotubulites from the Shibantan Member of the Dengying Formation in Yangtze Gorges Area (China)

Minerals
Tubular fossils are a unique metazoan group emerging in the late Ediacaran Period and demonstrating early skeletogenesis and an increase in the diversity of early biocommunities. Among the known records, Sinotubulites is widely distributed and distinct in morphology and ultrastructure, holding important evolutionary and stratigraphic significance ...
Xinjie Wang, Ben Yang, Zhihui An, Zhongbao Zhao   +3 more
openaire   +1 more source