Results 1 to 10 of about 30,193 (302)

Integrated geophysical and geological investigations applied to sedimentary rock mass characterization [PDF]

Annals of Geophysics, 2008
The Salento Peninsula (south-eastern Italy) is characterized by sedimentary rocks. The carbonatic nature of the rocks means they are affected by karst phenomena, forming such features as sinkholes, collapsed dolines and caverns, as a result of chemical ...
S. Negri, F. Mazzone, S. Margiotta, G. Leucci, M. T. Carrozzo   +4 more
doaj   +2 more sources

Soil Depth Prediction Model Using Terrain Attributes in Gangwon-do, South Korea

Applied Sciences, 2023
Soil depth is a crucial parameter in slope stability analysis in mountainous areas. The drilling survey is the most reliable method for determining soil depth, but it requires a high cost for the vast geographical area.
Jinwook Kim, Hosung Shin
doaj   +1 more source

Evaluation of Gas Migration and Rock Damage Characteristics for Underground Nuclear Waste Storage Based on a Coupled Model

Science and Technology of Nuclear Installations, 2018
In the deep geological repository of nuclear waste, the corrosion of waste generates gas, which increases the storage pressure, changes the properties of the rock strata, and affects the stability of nuclear waste repository.
Yi Xue, Faning Dang, Fang Shi, Rongjian Li, Zhengzheng Cao   +4 more
doaj   +1 more source

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 new method of lithologic identification and distribution characteristics of fine - grained sediments: A case study in southwest of Ordos Basin, China

Open Geosciences, 2019
Lithologic identification is critical for studying fine - grained sediments, which further elucidates sedimentary environment, and formation. The oil - bearing Chang 7 Section of the Yanchang Formation in Ordos Basin contains thick dark mudstone with a ...
Lyu Qiqi, Luo Shunshe, Guan Yulong, Fu Jinhua, Niu Xiaobing, Xu Liming, Feng Shengbin, Li Shixiang   +7 more
doaj   +1 more source

Rock typing and reservoir zonation of the Asmari Formation in a gas field, Persian Gulf [PDF]

International Journal of Mining and Geo-Engineering
In this study, the geological and petrophysical methods were combined to investigate the reservoir characteristics of the Asmari Formation in one of the gas fields in the Persian Gulf.
Behrooz Esrafili-Dizaji
doaj   +1 more source

Silicate and carbonate mixed shelf formation and its controlling factors, a case study from the Cambrian Canglangpu formation in Sichuan basin, China

Open Geosciences, 2023
Mixed sedimentation is mainly a phenomenon by which siliciclastic and carbonate are mixed under a similar sedimentary environment. The study of the composition of mixed rock can reflect the sedimentary environment.
Tong Zebin, Hu Zhonggui, Li Shilin, Huang Yufei, Zuo Yun’an, Zhu Yixin, Pang Yulai, Dong Qingmin, Xu Chunyang   +8 more
doaj   +1 more source

Steno and the rock cycle

Substantia, 2021
Geologists categorize the basic types of rock according to their origin – igneous, sedimentary, or metamorphic -- rather than by their physical properties.
Alan H. Cutler
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