Results 41 to 50 of about 871,982 (402)

Lithofacies characteristics and reservoir capacity of fine-grained sedimentary rocks of second member of Qianfoya Formation in Yuanba area, Sichuan Basin

Shiyou shiyan dizhi
The shale oil and gas exploration potential of the Jurassic Qianfoya Formation in the Sichuan Basin is promising. However, there is still a lack of understanding regarding the basic sedimentary characteristics and development patterns of fine-grained ...
Jun PENG, Xinyi ZHANG, Tianyu XU, Lixue CHENG, Kun ZHANG, Bin LI   +5 more
doaj   +1 more source

A preliminary study on the Earth’s evolution and condensation

European Journal of Remote Sensing, 2020
Through many field geology observations, the authors find that sandstone and carbonate rocks, which were originally thought to be sedimentary, have magmatic characteristics and should classified as magmatic rather than sedimentary rocks.
Shaofeng Guo, Jianmin Zheng, Guohua Qiao, Xudong Wang   +3 more
doaj   +1 more source

Lithofacies classification and itssignificance on oil and gas exploration of the Permain Fengcheng mixed shale in the Hashan area, northwestern Junggar Basin, China

Energy Exploration & Exploitation, 2023
The Fengcheng Formation in the Hashan area of the northwestern Junggar Basin is a complex fine-grained sedimentary rock deposited in a saline-alkaline lake basin and influenced by mechanical, volcanic, chemical, and biological processes.
Jian Zhou, Chengyan Lin, Huimin Liu, Guanlong Zhang, Kuihua Zhang, Hongzhou Yu, Qianjun Wang, Qianru Cai   +7 more
doaj   +1 more source

A Study on Rock Mass Classifications and Tunnel Support Systems in Unconsolidated Sedimentary Rock

, 2017
This paper presents new valuable field data and a comprehensive approach to the determination of the rock mass classification and tunnel support systems for tunnels in unconsolidated sedimentary rocks as a special soil condition.
Junyoung Ko, Sangseom Jeong
semanticscholar   +1 more source

Provenance of sedimentary rocks [PDF]

, 2009
Understanding the origins, or provenance, of a sedimentary deposit is an important aspect of geology. Sedimentary rocks are derived from the erosion of other rocks and thus provide important records of the geological environment at the time they were ...
Moloney, Paul, Pritchard, Geoffrey, Russell, Ken, Whiten, Bill   +3 more
core   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Sedimentary processes of the Bagnold Dunes: Implications for the eolian rock record of Mars

Journal of Geophysical Research - Planets, 2017
The Mars Science Laboratory rover Curiosity visited two active wind‐blown sand dunes within Gale crater, Mars, which provided the first ground‐based opportunity to compare Martian and terrestrial eolian dune sedimentary processes and study a modern ...
R. Ewing, M. Lapôtre, K. Lewis, M. Day, N. Stein, D. Rubin, R. Sullivan, S. Banham, M. Lamb, N. Bridges, Sanjeev Gupta, W. Fischer   +11 more
semanticscholar   +1 more source

Anomalous negative excursion of carbon isotope in organic carbon after the last Paleoproterozoic glaciation in North America [PDF]

, 2010
Early Paleoproterozoic time (2.5–2.0 Ga) spanned a critical phase in Earth's history, characterized by repeated glaciations and an increase in atmospheric oxygen (the Great Oxidation Event (GOE)).
Bekker, Bekker, Bekker, Bekker, Clayton, Dutkiewicz, Eigenbrode, Eiichi Tajika, Evans, Gair, Hayes, Hayes, Hayes, Holland, Joseph L. Kirschvink, Karhu, Kazuhisa Goto, Kirschvink, Kohonen, Long, Marmo, McLennan, Nanako O. Ogawa, Naohiko Ohkouchi, Ogawa, Ohkouchi, Ojakangas, Ojakangas, Ojakangas, Papineau, Pavlov, Rainbird, Rasmussen, Ryuji Tada, Schoell, Shinji Yamamoto, Vallini, Yasuhito Sekine, Young, Young, Young, Young   +41 more
core   +1 more source

Topological Insulator Layered Bi2Te3 Based 3D‐Printed Nanocarbon Electrode for Rechargeable Aqueous Ammonium‐Ion Battery

Advanced Functional Materials, EarlyView.
In this work, Bi2Te3 is integrated into a 3D‐printed nanocarbon electrode for NH4+ storage. A rocking‐chair battery with CuHCF as the cathode delivers a high energy density of 134.8 Wh kg−1 and a power density of 1800 W kg−1. The design allows easy recovery of carbon additives, promoting sustainability and recyclability in next‐generation aqueous ...
Sunny Nandi, Martin Pumera
wiley   +1 more source

Characteristics and main controlling factors of the sweet spot reservoir in the first member of Lower Shihezi Formation of well J58 in Hangjinqi area, Ordos Basin

矿业科学学报, 2022
For a long time, the characteristics and main controlling factors of the sweet spot reservoir of tight sandstone gas in the first member of the Shihezi Formation in Hangjinqi area of Ordos Basin are not clear, which restricts the natural gas productivity
Hu Huidong, Li Xianqing, Chen Chunfang, Liu Yang, Zhang Boxiang   +4 more
doaj   +1 more source