Results 1 to 10 of about 83,211 (211)

Constraining the Timing of Evolution of Shear Zones in Two Collisional Orogens: Fusing Structural Geology and Geochronology [PDF]

open access: goldGeosciences, 2022
In recent decades, constraining the timing of shear activity has been one of the main topics of research about the tectono-metamorphic evolution of orogenic belts.
Rodolfo Carosi   +5 more
openalex   +3 more sources

Using Passing Trains as Seismic Sources for Refraction Microtremor Site Characterisation Surveys: Rugeley, Staffordshire, UK

open access: yesIraqi Geological Journal, 2023
Microtremor seismic surveys are routinely used to provide shear wave velocities that are converted to soil stiffness site profiles. In this paper, we look to assess the feasibility of using trains as seismic sources to characterize near-surface ...
Raad Eissa   +7 more
doaj   +1 more source

Development and Comparison of 3D Seismic Geology and Shear-wave Velocity Models of Metro Vancouver

open access: diamondSeismica
This study presents a 3D regional modeling of seismic geology and shear wave velocity (Vs) in Metro Vancouver for seismic microzonation and hazard prediction.
Sujan Raj Adhikari, Sheri Molnar
openalex   +3 more sources

Microzonation of the Linares, Northeast Mexico area, based on geology and shear-wave velocity measurements [PDF]

open access: hybridGeofísica Internacional, 2005
En este trabajo se ha definido la estructura de velocidades de ondas S (VS) y P (Vp), así como el promedio de velocidades ( v s30 ) para los primeros 30 metros del subsuelo, a partir de perfiles sísmicos de refracción en el área de Linares, Nuevo León ...
Juan C. Montalvo‐Arrieta   +5 more
doaj   +5 more sources

Mechanism of rockfall coupled with endogenic and exogenic geological processes: A case study in the upper Triassic limestone mines in the Qamdo area, eastern Tibet

open access: yesDizhi lixue xuebao, 2022
Rockfall in limestone mines is a common geohazard in the Changdu area of eastern Tibet and one of the leading geo-safety issues that mining enterprises and railway projects are faced with.
LI Hongliang   +7 more
doaj   +1 more source

Prediction of the peak shear strength of the rock joints with artificial neural networks

open access: yesGeologija, 2022
With the development of computer technology, artificial neural networks are becoming increasingly useful in the field of engineering geology and geotechnics.
Karmen Fifer Bizjak, Rok Vezočnik
doaj   +1 more source

Connecting shear localization with the long-range correlated polarized stress fields in granular materials

open access: yesNature Communications, 2020
Understanding the behavior of jammed granular matter is important for a range of phenomena, from materials science to geology. Wang et al. uncover relations between stress correlations and emergence of localized shear bands due to external shear stress ...
Yinqiao Wang, Yujie Wang, Jie Zhang
doaj   +1 more source

Assessing the liquefaction potential of seabed soils based on ocean ambient noise in the Yellow River Delta

open access: yesFrontiers in Marine Science, 2023
Seabed soils can undergo liquefaction under cyclic loading, resulting in a rapid decrease in strength and stiffness, which may lead to the destruction of offshore structures.
Yang Li   +5 more
doaj   +1 more source

Estimation of VS30 using shallow depth time-averaged shear wave velocity of Rawalpindi–Islamabad, Pakistan

open access: yesGeomatics, Natural Hazards & Risk, 2023
The time-averaged shear wave velocity of top 30 m (VS30) is the most commonly used parameter to classify a site and evaluate its amplification characteristics for the seismic design.
Muhammad Bilal Adeel   +6 more
doaj   +1 more source

Indosinian high-strain deformation for the Yunkaidashan tectonic belt, south China : Kinematics and 40Ar/39Ar geochronological constraints [PDF]

open access: yes, 2007
Structural and 40Ar/39Ar data from the Yunkaidashan Belt document kinematic and tectonothermal characteristics of early Mesozoic Indosinian orogenesis in the southern part of the South China Block.
Bureau of Geology and Mineral Resources of Guangdong Province (GDBGMR)   +90 more
core   +1 more source

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