Results 71 to 80 of about 36,045 (295)

Evidence for structural control of mare volcanism in lunar compressional tectonic settings

open access: yesNature Communications, 2023
One of the long-standing enigmas for lunar tectonic-thermal evolution is the spatiotemporal association of contractional wrinkle ridges and basaltic volcanism in a compressional regime.
Feng Zhang   +7 more
doaj   +1 more source

Earthquake Size Distribution: Power-Law with Exponent Beta = 1/2? [PDF]

open access: yes, 2010
We propose that the widely observed and universal Gutenberg-Richter relation is a mathematical consequence of the critical branching nature of earthquake process in a brittle fracture environment.
Antsyferov   +62 more
core   +1 more source

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

open access: yesDeep 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   +8 more
wiley   +1 more source

Slip distribution and tectonic implication of the 1999 Chi‐Chi, Taiwan, Earthquake [PDF]

open access: yes, 2001
We report on the fault complexity of the large (M_w = 7.6) Chi‐Chi earthquake obtained by inverting densely and well‐distributed static measurements consisting of 119 GPS and 23 doubly integrated strong motion records.
Helmberger, Donald V.   +4 more
core   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

open access: yesDeep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li   +4 more
wiley   +1 more source

Multiple Linear Regression Inversion of the Ground Stress Field in Rock Masses for Tunnel Engineering: A Novel Approach to Stress Field Reconstruction

open access: yesBuildings
The inversion of the ground stress field in rock masses is critical for accurate tunnel and underground engineering design. This study addresses the challenge of accurately capturing both the primary and secondary stress field components in rock masses ...
Wei Meng   +5 more
doaj   +1 more source

Deformational regimes and kinematic conditions of modern tectonic faulting within the limits of the Mountain Crimea. 2

open access: yesГеофизический журнал, 2015
Description and analysis of stereographic models of deformational regimes of tectonic faulting and corresponding kinematic conditions given in part 1 [Wolfman, 2014] have been continued.
Yu.M. Volfman
doaj   +1 more source

Exhumation of the Sierra de Cameros (Iberian Range, Spain): constraints from low-temperature thermochronology [PDF]

open access: yes, 2008
We present new fission-track and (U–Th)/He data from apatite and zircon in order to reconstruct the exhumation of the Sierra de Cameros, in the northwestern part of Iberian Range, Spain. Zircon fission-track ages from samples from the depocentre of the
Casquet   +17 more
core   +2 more sources

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Petroleum geology and exploration in Levant Basin, Eastern Mediterranean

open access: yesShiyou shiyan dizhi, 2020
This paper analyzes hydrocarbon accumulation conditions, defines hydrocarbon plays and discusses their hydrocarbon accumulation models using geological and geophysical data and an international petroleum exploration and production database, with an ...
Kun TIAN   +4 more
doaj   +1 more source

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