Results 71 to 80 of about 692,725 (319)

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

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

Nature 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, Alberto Pizzi, Trishit Ruj, Goro Komatsu, An Yin, Yanan Dang, Yang Liu, Yongliao Zou   +7 more
doaj   +1 more source

Deep structure of the Baringo Rift Basin (central Kenya) from three-dimensional magnetotelluric imaging: Implications for rift evolution [PDF]

, 2000
Three-dimensional modeling of data from 31 vertical electrical and 24 magnetotelluric soundings collected in the Baringo-Bogoria Basin (central Kenya Rift Valley) shows a thick succession of well-defined tectonostratigraphic units beneath the Recent ...
Achauer, Andrews, Beer, Beer, Bernard Le Gall, Bishop, Bosworth, Caroline Le Turdu, Chapman, Chapman, Chave, Clark, Counil, Deino, Fisher, Griffiths, Grimaud, Groom, Hautot, Hay, Hill, Jean-Jacques Tiercelin, Jiracek, Kathy Whaler, King, KRISP Working Party, Ku, La Torraca, Le Gall, Le Turdu, Mackie, Mackie, Mackie, Maguire, McConnell, Morley, Morley, Mugisha, Nicol, Nolasco, Pascal Tarits, Pickford, Renaut, Richert, Ritter, Rooney, Smith, Smith, Sophie Hautot, Swain, Swain, Swain, Tiercelin, Tiercelin, Tongue, Williams   +55 more
core   +2 more sources

Shock wave propagation characteristics of aluminum‐containing explosive in corrugated steel‐lined tunnel

Deep Underground Science and Engineering, EarlyView.
Aluminum‐enhanced afterburning renders AE explosives more hazardous than conventional ones. Corrugated steel linings reduce far‐field AE blast overpressure by ~50% through wave reflection and dissipation. The developed model accurately predicts peak pressure (<10% error) and arrival time (<3% error), supporting protective design.
Zhen Wang, Jiayu Peng, Hujun Li, Yuguo Ji, Shuobiao Li, Guokai Zhang   +5 more
wiley   +1 more source

Crustal structure and continent‐ocean boundary along the Galicia continental margin (NW Iberia): insights from combined gravity and seismic interpretation [PDF]

, 2018
The magma‐poor rifted continental margin of Galicia has an extremely complex structure. Its formation involved several rifting episodes that occurred ultimately during the early Cretaceous near a ridge triple junction, which produced a change in the ...
Acosta, Juan, Carbó Gorosabel, Andrés, Druet Vélez, María, Ercilla, Gemma, Granja Bruña, José Luis, Llanes Estrada, Pilar, Muñoz Martín, Alfonso   +6 more
core   +3 more sources

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

Deep 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, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

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

Геофизический 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]

, 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, F. M. Stuart, Foeken, Gil-Imaz, Gil-Imaz, Gil-Imaz, Goldberg, Guiraud, Hurford, Ketcham, L. Barbero, Mas, Mas, Mata, Muñoz, P. Del Río, Schudack, Tischer   +17 more
core   +2 more sources

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

Deep 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, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +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

Buildings
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, Hongyang Zhou, Chun Luo, Shuai Qin, Xuefu Zhang, Binke Chen   +5 more
doaj   +1 more source