Results 1 to 10 of about 97,366 (264)
Energies, 2021 Achieving zonal isolation along wellbores is essential for upholding the containment integrity of subsurface reservoirs and preventing fluid seepage to the environment.
Timotheus K. T. Wolterbeek +1 more
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The stability of subducted glaucophane with the Earth’s secular cooling
Nature Communications, 2021 Along the cold subduction geotherm, glaucophane remains stable down to pressure and temperature (P–T) conditions of ca. 240 km depth, whereas under the warm subduction geotherm, it dehydrates and breaks down into pyroxenes and silica between ca.
Yoonah Bang +13 more
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Superionic effect and anisotropic texture in Earth’s inner core driven by geomagnetic field
Nature Communications, 2023 Earth’s inner core is heterogeneous and anisotropic. A new study based on computational simulation reveals the presence of ionic hydrogen flux in iron crystals, driven by the dipole geomagnetic field, which promotes the formation of observed inner core ...
Shichuan Sun +7 more
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The Structure and Elasticity of CaO3 Under High Pressure by First-Principles Simulation
Frontiers in Earth Science, 2022 The structure, electrical properties, elasticity, and anisotropy of the newly discovered mantle mineral, CaO3, are obtained under 10–50 GPa by first-principles simulation to understand their relations with the composition and structure of the mantle ...
Hanyu Wang +7 more
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Phase transition mechanism and bandgap engineering of Sb2S3 at gigapascal pressures
Communications Chemistry, 2021 Antimonite (Sb2S3) has potential applications for solar energy, but how its layered structure changes under pressure is incompletely understood. Here diamond anvil cell experiments supported by first principles calculations offer a structural explanation
Zhongxun Cui +9 more
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Geophysical Research Letters, 2022 Subducted oceanic crust is enriched in free silica. Although being one of the silica polymorphs at lower‐mantle pressures, niccolite‐type phase (Nt‐phase) has not been documented in multicomponent metabasaltic or metasediment compositions relevant to ...
Lu Liu +8 more
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Earth Pressure During Earthquake
Soils and Foundations, 1973 ABSTRACT In order to estimate the active earth pressure and the earth pressure at rest against the walls during earthquake, the authors carried out the tests using a large scale vibrating soil bin in laboratory. The resultant force due to the oscillating earth pressure, its applied point and the angle of wall friction were measured during the wall ...
ICHIHARA, MATSUHEI, MATSUZAWA, HIROSHI
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DISCUSSION. EXPERIMENTS ON EARTH-PRESSURES [PDF]
Minutes of the Proceedings of the Institution of Civil Engineers, 1917 n ...
Fitzmaurice, Sir M. +7 more
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An investigation into the role of time-dependent cohesion in interseismic fault restrengthening
Scientific Reports, 2019 Earthquakes typically exhibit recurrence times that far exceed time-scales attainable in a laboratory setting. To traverse the temporal gap between the laboratory and nature, the slide-hold-slide test is commonly employed as a laboratory analogue for the
M. P. A. van den Ende, A. R. Niemeijer
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T1–T2 microscale correlation relaxometry for in situ high-pressure nuclear magnetic resonance [PDF]
Matter and Radiation at ExtremesOver the last decade, frequency-domain in situ high-pressure nuclear magnetic resonance (NMR) spectroscopy in diamond anvil cells (DACs) has been employed as a structural and electronic probe of condensed matter systems at pressures well into the megabar
Thomas Meier +14 more
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