Results 121 to 130 of about 1,800 (220)

Construction and application of a model for drainage via directional boreholes against water hazards in deep vertical shafts

Meitian dizhi yu kantan
BackgroundVertical shafts are typically employed in the deep mining areas of Jurassic coalfields in western China. However, the direct exposure of extremely thick Cretaceous aquifers frequently leads to significant water inflow in shafts.
Chunhu ZHAO, Mingcheng ZHU, Yadong JI, Shidong WANG, Wenzhong ZHANG, Kaipeng ZHU, Yingfeng LIU, Hongbo SHANG, Chaofeng LI, Min FAN, Kai LI   +10 more
doaj   +1 more source

Nottingham: a geological background for planning and development [PDF]

, 1990
This study, carried out between 1987 and 1989, was commissioned by the Department of the Environment and funded jointly by the Department and the British Geological Survey.
Charsley, T.J., Lowe, D.J., Rathbone, P.A.   +2 more
core  

Формы нахождения редкоземельных элементов в торфах Западной Сибири [PDF]

, 2016
Актуальность работы обусловлена необходимостью определения природы и разработки моделей накопления редкоземельных элементов в торфах и углях для прогнозирования и выявления редкометалльного оруденения в угленосных отложениях, а также необходимостью ...
Арбузов, Сергей Иванович, Ильенок, Сергей Сергеевич, Маслов, Станислав Григорьевич, Перегудина, Елена Владимировна   +3 more
core  

Formation of Brahmani Natural Arch, Eastern India: A proposed geoheritage site of India

Geosystems and Geoenvironment
Natural arch is one of the most fascinating geomorphological features formed by erosional process and many of them are formed within gently dipping sandstone.
Saptarshi Mallick, Kailash Chandra Sahoo
doaj   +1 more source

Environmental geology study: parts of west Wiltshire and south-east Avon [PDF]

, 1985
The objective of this study has been to collect and interpret the available environmental geology data and to use it to compile a set of thematic maps and this report.
Forster, A., Hobbs, P.R.N., Monkhouse, R.A., Wyatt, R.J.   +3 more
core  

Chromium in Chinese coals: geochemistry and environmental impacts associated with coal-fired power plants. [PDF]

Environ Geochem Health, 2023
Tang Q, Zhang H, Zhao X, Zheng L, Miao C, Liu Y, Liu G, Chen L, Fu B.   +8 more
europepmc   +1 more source

Coalbed Methane Enrichment Characteristics and Exploration Target Selection in the Zhuozishan Coalfield of the Western Ordos Basin, China. [PDF]

ACS Omega, 2022
Sun B, Shao Y, Gao Z, Li J, Sun B, Yang M, Zhou J, Yao H, Sun F, Shao L.   +9 more
europepmc   +1 more source

Engineering geology of British rocks and soils : Lias Group [PDF]

, 2012
The report begins with an introduction and a detailed modern assessment of the geology of the Lias Group in terms of both stratigraphy and lithology. The modern lithostratigraphy is placed in the context of the old, and sometimes more familiar, usage ...
Barron, M., Entwisle, D.C., Hobbs, P.R.N., Jones, L.D., Kemp, S., Meakin, J.L., Northmore, K.J., Self, S., Sumbler, M.G.   +8 more
core  

Research on mechanism and risk assessment of water and sand outburst in weakly cemented rock layers of Jurassic coalfields

Meikuang Anquan
Due to the relatively late coal-forming period in the Jurassic coalfields in western China, the rock characteristics often exhibit poor cementation, low strength, and easy softening and collapse in contact with water, which leads to the occurrence of water and sand outburst events in weakly cemented rock layers during mining. Therefore, identifying the
Jiangwei FAN, Haiyu HUANG, Xiang DING, Naijun LI, Zhiguo PU, Yuguang ZHANG, Liguo ZHAO   +6 more
openaire   +1 more source

Research on the prediction of the height of water-conducting fissure zones in a Jurassic coalfield based on AdaBoost-WOA-BPNN

Abstract Understanding the laws behind the development of water-conducting fissure zones in the Huanglong Jurassic coalfield and accurately predicting the height of these water-conducting fissures are crucial to prevent and control the water damage in the overlying thick sandstone aquifer of the Luohe Formation.
Enke Hou, Meng Bi, Tianwen Long, Xiaoshen Xie, Pengfei Hou, Qianlong Li   +5 more
openaire   +1 more source