Results 21 to 30 of about 8,670 (284)

Geology-engineering integration to improve drilling speed and safety in ultra-deep clastic reservoirs of the Qiulitage structural belt [PDF]

, 2022
The Qiulitage structural belt in Tarim Basin has a large reservoir burial depth and complex geological conditions. Challenges such as ultra-depth, high temperature, high pressure and high stress lead to significant problems related to well control safety ...
Ji, Guodong, Baud, Patrick, Wang, Haige, Huang, Hongchun, Chen, Changchang, Wu, Qiang   +5 more
core   +1 more source

Dynamic Evolution of Porosity in Lower-Crustal Faults During the Earthquake Cycle [PDF]

, 2023
Earthquake-induced fracturing of the dry and strong lower crust can transiently increase permeability for fluids to flow and trigger metamorphic and rheological transformations.
Menegon, Luca, Michalchuk, Stephen Paul, Renard, François, Plümper, Oliver, Zertani, Sascha, Chogani, Alireza, Fusseis, Florian   +6 more
core  

The Central European, Tarim and Siberian Large Igneous Provinces, Late Palaeozoic orogeny and coeval metallogeny

, 2014
The formation of the Central European and Tarim Large Igneous Provinces (LIPs) in the Early Permian coincided with the demise of the Variscan and the Southern Tianshan orogens, respectively.
de Boorder, H., Structural geology and EM, Structural geology & tectonics   +2 more
core   +1 more source

About the “predecessors” of the 2023 February earthquakes, Turkey

Seismica
In the frame of a comprehensive investigation of historical earthquakes of Anatolia, we propose a re-appraisal of four major earthquakes/sequences occurred after 1000 AD (1114/1115, 1269, 1513/1514 and 1544), which could be considered as predecessors of
Massimiliano Stucchi, Karin Şeşetyan, Viviana Castelli, Antonio Augusto Gomez Capera, Carlo Meletti, Mohamed Reda Sbeinati   +5 more
doaj   +1 more source

DeepRFQC: automating quality control for P-wave receiver function analysis using a U-net inspired network

Seismica
This paper introduces DeepRFQC, an automated method for quality control in P-wave receiver function analysis. Leveraging a U-Net inspired deep learning model, which has previously shown promise in denoising and phase detection, DeepRFQC efficiently ...
Sina Sabermahani, Andrew Frederiksen
doaj   +1 more source

The Relevance of Grain Dissection for Grain Size Reduction in Polar Ice: Insights from Numerical Models and Ice Core Microstructure Analysis

, 2017
The flow of ice depends on the properties of the aggregate of individual ice crystals, such as grain size or lattice orientation distributions. Therefore, an understanding of the processes controlling ice micro-dynamics is needed to ultimately develop a ...
Steinbach, F., Florian Steinbach, Kuiper, Ernst-Jan N., Griera, Albert, Bons, P. D., Albert Griera, Eichler, Jan, Kuiper, E.N., Structural geology & tectonics, Pennock, G.M., Structural geology and EM, Drury, Martyn R., Gill M. Pennock, Steinbach, Florian, Martyn R. Drury, Weikusat, Ilka, Eichler, J., Ilka Weikusat, Drury, M. R., Bons, Paul D., Griera, A., Ernst-Jan N. Kuiper, Pennock, Gill M., Paul D. Bons, Weikusat, I., Jan Eichler   +25 more
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Structural relaxation in silicate melts and non-Newtonian melt rheology in geologic processes [PDF]

, 1989
The timescale of structural relaxation in a silicate melt defines the transition from liquid (relaxed) to glassy (unrelaxed) behavior. Structural relaxation in silicate melts can be described by a relaxation time, , consistent with the observation that ...
Dingwell, Donald B., Webb, Sharon L.
core   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Grain Refinement During Severe Plastic Deformation and Similitude of Subgrain Formation: A Molecular Dynamics Study

Advanced Engineering Materials, EarlyView.
Molecular dynamics is used to investigate structure refinement during severe plastic deformation. The results show similitude with experimental data. Molecular dynamics simulations of severe plastic deformation of monocrystalline and polycrystalline samples by multiaxial compression of aluminum are carried out.
Roberto B. Figueiredo
wiley   +1 more source