Results 31 to 40 of about 1,550 (205)

In situ creep tests on the long‐term shear behaviors of a fault located at the dam foundation of Dagangshan hydropower station, China

Energy Science & Engineering, 2020
Faults in the rock mass of dam foundation are crucial in controlling dam deformation and stability. In particular, long‐term stability of dam foundation is an important factor for the safety of dam operations.
Wendong Yang, Kang Duan, Qiangyong Zhang, Yuyong Jiao, Shugang Wang   +4 more
doaj   +1 more source

Wood Carbon Sponge/SiO2 Aerogel Composites with Anisotropic Broadband Microwave Absorption, Elastic Resilience, and Thermal Insulation

Advanced Science, EarlyView.
Anisotropic wood carbon sponge/SiO2 aerogel composites are constructed, revealing a robust direction‐dependent permittivity ordering (tangential > radial > axial). The radial direction delivers an ultra‐broadband effective absorption bandwidth of 11.6 GHz at only 4.95 mm, while the tangential direction offers superior compressibility and thermal ...
Shuo Sun, Zhimeng Zhao, Weikai Zhan, Yonggang Jiang, Fengqi Liu, Yijie Hu, Junzong Feng, Jian Feng   +7 more
wiley   +1 more source

ICE-RAFTED SEDIMENTS FROM THE FRAM STRAIT: NEW DATA ON MINERALOGY, GEOCHEMISTRY AND SPORE-POLLEN SPECTRA [PDF]

Минералогия, 2017
The results of study of composition of ice-rafted sediments (IRS) from drifting ice of the Fram Strait are presented. The coarse fraction includes aggregates of clayey minerals, quartz, feldspars, mica and chlorites, rarely epidote, amphibole and ...
E.V. Belogub, A.V. Maslennikova, V.P. Shevchenko, A.V. Maslov, S. Gerland, I.A. Blinov   +5 more
doaj  

VIS-NIR-SWIR spectroscopic mapping for classification of hydrothermal-metasomatic alterations on the flanks of the Stolbovoe uranium deposit (Eastern Cis-Sayan)

Известия высших учебных заведений: Геология и разведка, 2022
Background. The Stolbovoe deposit is located in the northern part of the Eastern Sayan, in the Nizhneudinsky district of the Irkutsk region, within the N-47-IX map sheet. The surveying of the territory began in the sixties of the last century.
E. N. Karmanov, N. V. Ledeneva, V. A. Rassulov, A. V. Tomashev   +3 more
doaj   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

Recherches sur la composition chimique des chlorites

, 1927
En résumé, dans ce travail, j’ai étudié plusieurs catégories de faits expérimentaux concernant les chlorites. I. J’ai précisé tout d’abord la composition chimique de plusieurs types caractéristiques appartenant aux groupes suivants : A.
Orcel, Jean, Jean Orcel
core   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Quantitative Insights into Atomic Scale Oil–Clay Adhesion Governing Shale Oil Retention and Mobility

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Atomic force microscopy reveals a clear adhesion hierarchy between shale oil and clay minerals, governed by nanoscale surface chemistry. Strong interactions on chlorite and illite arise from abundant polar sites and cation bridging, whereas weaker coupling on montmorillonite limits interfacial binding.
Chen Lv, Guanwen Lu, Guandong Su
wiley   +1 more source

Observations sur les chlorites des minerais de fer

, 1950
Caillère Simonne, Hénin Stéphane. Observations sur les chlorites des minerais de fer. In: Groupe Français des argiles. Compte rendu des réunions d'études. Tome 2, 1950. pp.
Stéphane Hénin, Caillère, Simonne, Hénin, Stéphane, Simonne Caillère   +3 more
core   +1 more source

Pore Fractal and Structure Analysis of Pore-Filling Chlorite in Continental Shales: A Case Study from the Qingshankou Formation in the Gulong Sag

Fractal and Fractional
The successful exploration and development of shale oil in the clay-rich Gulong shale have sparked increased research into the influence of clay minerals on shale reservoirs.
Yuan Kang, Rukai Zhu, Kouqi Liu, Jingya Zhang, Chang Liu   +4 more
doaj   +1 more source