Results 131 to 140 of about 396,604 (347)

Elevated temperature effects on swelling pressure of compacted bentonite

Deep Underground Science and Engineering, EarlyView.
We present a set of new experimental investigations on the effects of elevated temperature on the swelling pressure development of compacted bentonite. This research was motivated by an emerging interest in using bentonite as a plug material in oil and gas well abandonment.
Linhua He, Majid Sedighi, Mojgan Hadi Mosleh, Andrey Jivkov, Jiangfeng Liu   +4 more
wiley   +1 more source

The constraints of sedimentary environment on the evolution of bauxite reservoir characteristics within the benxi formation in the Linxing area, Ordos Basin, China

Energy Science & Engineering
The breakthrough of bauxite natural gas in the Taiyuan Formation in the Longdong area of the Ordos Basin makes bauxite natural gas gradually become a new exploration direction.
Yin Yuan, Haijiao Fu, Detian Yan, Xiaoming Wang   +3 more
doaj   +1 more source

CONTRIBUTIONS TO THE TECTONIC HISTORY IN THE OUTER ZONE OF SOUTHWEST JAPAN [PDF]

, 1949
Tatsuro Matsumoto, Kametoshi Kanmera
openalex   +1 more source

Cenozoic evolution of Neotethys and implications for the causes of plate motions [PDF]

, 2003
Africa-North America-Eurasia plate circuit rotations, combined with Red Sea rotations and new estimates of crustal shortening in Iran define the Cenozoic history of the Neotethyan ocean between Arabia and Eurasia. The new constraints indicate that Arabia-
McQuarrie, N., Stock, J. M., Verdel, C., Wernicke, B. P.   +3 more
core   +2 more sources

Form and load transfer aspects of foundation systems: Case‐based implementation and adaptation for buildings

Deep Underground Science and Engineering, EarlyView.
Upon conceptualization of structural behavior, foundations in terms of their form are divided into linear (1D), planar (2D), and volumetric (3D). Regarding the load transfer mechanisms, linear foundation systems are considered vector‐acting, planar foundations are divided into section and surface‐acting, and volumetric ones are recognized as block ...
Abolfazl Eslami, Amirhossein Ebrahimipour, Meysam Imani, Reza Imam, Pinqiang Mo   +4 more
wiley   +1 more source

Modes of occurrence and origin of tungsten in the M3 coal seam of Neogene from the Puyang Coal Mine

Meitan xuebao
Critical minerals in coal deposits have attracted much attention in recent years because of their potential economic significance. However, these critical minerals are becoming scarce and expensive as their resources in conventional ores are exhausted ...
Xingxing GUO, Xiaomei WANG, Haijian CHENG, Haoran YANG, Sidong PAN   +4 more
doaj   +1 more source

Geomorphology, tectonics, and exploration [PDF]

Explorationists interpret satellite images for tectonic features and patterns that may be clues to mineral and energy deposits. The tectonic features of interest range in scale from regional (sedimentary basins, fold belts) to local (faults, fractures ...
Sabins, F. F., Jr.
core   +1 more source

Stress analysis of crack characteristic of anthracite under dynamic loading

Deep Underground Science and Engineering, EarlyView.
In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack characteristic stress threshold considering the strain rate effect is established. Then, the rationality of crack characteristic stress under
Yun Bai, Feng Gao, Ning Luo, Zhizhen Zhang, Yue Niu, Shanjie Su   +5 more
wiley   +1 more source

Slit tube responses and rock fracture characteristics in slit charge blasting under high in situ stress

Deep Underground Science and Engineering, EarlyView.
In this article, the finite element method‐smoothed particle hydrodynamics adaptive coupling algorithm is applied to numerically simulate and analyze the dynamic response of the slit tube and the crack propagation under high in situ stress. The dynamic response of the slit tube mainly exhibits radial response in the vertical direction of the slit and ...
Zhe Sui, Liyun Yang, Lijun Wu, Chenxi Ding   +3 more
wiley   +1 more source

Tektonická Geologie, se zvláŝtním zřetedhm k potřebám báñských techniků. (Tectonic Geology, with Special Regard to the Needs of Mining Engineers.) By B. Stoĉes. Four plates and 256 illustrations in the text. Moravska Ostravá, 1921. [PDF]

, 1922
T. Moscheles
openalex   +1 more source