Results 21 to 30 of about 336,753 (298)

Kinematics and Timing Constraints in a Transpressive Tectonic Regime: The Example of the Posada-Asinara Shear Zone (NE Sardinia, Italy)

open access: yesGeosciences, 2020
Detailed geological field mapping, integrated with meso- and microstructural investigations, kinematic of the flow and finite strain analyses, combined with geochronology, are fundamental tools to obtain information on the temperature–deformation–timing ...
Rodolfo Carosi   +5 more
doaj   +1 more source

Impact of Shear Zone on Rockburst in the Deep Neelum-Jehlum Hydropower Tunnel: A Numerical Modeling Approach

open access: yesEnergies, 2018
Rockburst is a hazardous phenomenon in deep tunnels influenced by geological structural planes like faults, joints, and shear planes. Small-scale shear-plane-like structures have damaging impact on the boundaries of the tunnel, which act as barrier and ...
Abdul Muntaqim Naji   +3 more
doaj   +1 more source

Geology of late-Variscan Sàrrabus pluton (south-eastern Sardinia, Italy)

open access: yesJournal of Maps, 2021
This paper deals with the geological mapping of the late-Variscan Sàrrabus pluton, (south-eastern Sardinia), a shallow multiple and composite igneous complex dominated by several generations of granodiorites, metaluminous and peraluminous granites and ...
F. Secchi   +7 more
doaj   +1 more source

Control Structure On Damage Zone and Fault Plane to Geometry Of Quartz Veins and Calcite In Muaradua Ogan Komering Ulu Selatan, South Sumatra, Indonesia

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology, 2022
Geological mapping was carried out on the Gilas and Malau rivers in the Muaradua area, South Ogan Komering Ulu Regency, South Sumatra by observing the presence of joints, faults, and veins in the granite and phyllite rock outcrops of the Tarap Formation.
Budhi Setiawan, Pratama Goestyananda
doaj   +1 more source

Quantitative Evaluation of Soil Structure and Strain in Three Dimensions under Shear Using X-ray Computed Tomography Image Analysis

open access: yesJournal of Imaging, 2021
The objective of this study is to quantitatively evaluate the soil structure behavior when under shear stress to understand the mechanism of shear zone formation using a micro-focus X-ray computed tomography (CT) scanner to visualize the internal samples
Shintaro Nohara, Toshifumi Mukunoki
doaj   +1 more source

San-in shear zone in southwest Japan, revealed by GNSS observations

open access: yesEarth, Planets and Space, 2017
A right-lateral shear zone in the San-in region, southwest Japan, has been proposed by previous geological and seismological studies. It locates 350 km north of the Nankai Trough, that is, the main plate boundary between the subducting Philippine Sea and
Takuya Nishimura, Youichiro Takada
doaj   +1 more source

The impact of magnetic shear on the dynamics of a seeded 3D filament in slab geometry

open access: yesNuclear Materials and Energy, 2017
Seeded filament simulations are used to study blob dynamics with the state-of-the-art TOKAM3X fluid code in the scrape-off layer (SOL) using a slab geometry.
W.A. Gracias   +4 more
doaj   +1 more source

Load transfer mechanism and critical length of anchorage zone for anchor bolt.

open access: yesPLoS ONE, 2020
The length of anchorage zone of an anchor bolt affects the distribution of axial force and shear stress therein. Based on a shear-displacement model, the load distribution of anchor bolts in the elastic deformation stage was analysed.
Xingliang Xu, Suchuan Tian
doaj   +1 more source

Transient conduit permeability controlled by a shift between compactant shear and dilatant rupture at Unzen volcano (Japan) [PDF]

open access: yesSolid Earth, 2022
The permeability of magma in volcanic conduits controls the fluid flow and pore pressure development that regulates gas emissions and the style of volcanic eruptions.
Y. Lavallée   +17 more
doaj   +1 more source

Strain Characteristics of Motianling Ductile Shear Zone in Northern Guangxi and its Tectonic Significances

open access: yesKuangchan zonghe liyong
This is an article in the field of structural geology. In this article, the strain characteristics and tectonic significance of the tile shear zone of Motianling are discussed through macro-microstructure, finite strain measurement of rocks and EBSD ...
Zhili REN   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy