Results 31 to 40 of about 102,298 (302)

The physics of earthquakes [PDF]

open access: yes, 2004
Earthquakes occur as a result of global plate motion. However, this simple picture is far from complete. Some plate boundaries glide past each other smoothly, while others are punctuated by catastrophic failures.
Brodsky, Emily E., Kanamori, Hiroo
core   +1 more source

Fault reactivation by fluid injection: Controls from stress state and injection rate [PDF]

open access: yes, 2018
We studied the influence of stress state and fluid injection rate on the reactivation of faults. We conducted experiments on a saw-cut Westerly granite sample under triaxial stress conditions.
Brantut, Nicolas   +2 more
core   +2 more sources

Modeling afterslip and aftershocks following the 1992 Landers earthquake [PDF]

open access: yes, 2007
One way to probe the rheology of the lithosphere and fault zones is to analyze the temporal evolution of deformation following a large earthquake. In such a case, the lithosphere responds to a known stress change that can be assessed from earthquake slip
Amelung   +70 more
core   +3 more sources

Kinematics of fault-related folding derived from a sandbox experiment [PDF]

open access: yes, 2007
We analyze the kinematics of fault tip folding at the front of a fold-and-thrust wedge using a sandbox experiment. The analog model consists of sand layers intercalated with low-friction glass bead layers, deposited in a glass-sided experimental device ...
Adam   +65 more
core   +5 more sources

Modeling the dynamic rupture propagation on heterogeneous faults with rate- and state-dependent friction

open access: yesAnnals of Geophysics, 2005
We investigate the effects of non-uniform distribution of constitutive parameters on the dynamic propagation of an earthquake rupture. We use a 2D finite difference numerical method and we assume that the dynamic rupture propagation is governed
M. Cocco, A. Bizzarri, E. Tinti
doaj   +1 more source

Experimental study on the influence of shale content in fault zone on fault friction coefficient based on circular shear test

open access: yesAin Shams Engineering Journal
Water injection in fault block oil and gas reservoirs can trigger fault activity, leading to leakage and potential earthquakes, which may cause significant natural and economic losses.
Lingdong Meng   +8 more
doaj   +1 more source

The role of water in fault lubrication

open access: yesNature Communications, 2018
Friction plays a key role in fault slip between tectonic plates. Here, the authors demonstrate through friction experiments on calcite in brines that pressure solution at high stresses and slow sliding velocities leads to a prominent decrease in friction
Yijue Diao, Rosa M. Espinosa-Marzal
doaj   +1 more source

A Combined Residual Detection Method of Reaction Wheel for Fault Detection

open access: yesShanghai Jiaotong Daxue xuebao, 2021
A fault detection method of combined residual is proposed to effectively master the health state of the reaction wheels of in-orbit satellite according to the telemetry data. Based on the characteristics of in-orbit telemetry data, in the proposed method,
HE Xiawei, CAI Yunze, YAN Lingling
doaj   +1 more source

Frictional behavior of talc-calcite mixtures [PDF]

open access: yes, 2015
Faults involving phyllosilicates appear weak when compared to the laboratory-derived strength of most crustal rocks. Among phyllosilicates, talc, with very low friction, is one of the weakest minerals involved in various tectonic settings.
Carpenter, B. M.   +2 more
core   +1 more source

Mechanical Mechanism of Fault Dislocation Based on in situ Stress State

open access: yesFrontiers in Earth Science, 2020
Fault dislocation occurs under certain stress conditions. Based on the mechanical relationship between the direction of crustal stress and fault occurrence, three criteria – fault dislocation trend, fault strike dislocation trend, and dip dislocation ...
Haoyu Shi   +6 more
doaj   +1 more source

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