Results 71 to 80 of about 334,683 (251)

The older ultramafic rocks of Aberdeenshire, similarities to SSZ ophiolites and significance for regional tectonics [abstract] [PDF]

, 2008
It has long been known that there are at least two phases of mafic-ultramafic magmatism in NE Scotland (Read 1919), the well known Younger Gabbro suite and a lesser known ‘Older suite’.
Styles, Michael
core  

Nonequilibrium Thermodynamics of Amorphous Materials III: Shear-Transformation-Zone Plasticity

, 2009
We use the internal-variable, effective-temperature thermodynamics developed in two preceding papers to reformulate the shear-transformation-zone (STZ) theory of amorphous plasticity. As required by the preceding analysis, we make explicit approximations
E. H. Lee, Eran Bouchbinder, G. A. Maugin, J. S. Langer   +3 more
core   +1 more source

Experimental insights into anchorage performance of en-echelon joints under cyclic shear loading

International Journal of Mining Science and Technology
Understanding the anchorage performance of en-echelon joints under cyclic shear loading is crucial for optimizing support strategies in jointed rock masses.
Bin Wang, Qiangyong Zhang, Yujing Jiang, Kang Duan, Hongbin Chen   +4 more
doaj   +1 more source

Mechanisms for slow strengthening in granular materials

, 1999
Several mechanisms cause a granular material to strengthen over time at low applied stress. The strength is determined from the maximum frictional force F_max experienced by a shearing plate in contact with wet or dry granular material after the layer ...
A. Ruina, A.J. Liu, C. Marone, C. Marone, C. Scholz, C.H. Liu, D. Howell, D.M. Hanes, E. Aharonov, F. Radjai, G. Hähner, H.M. Jaeger, J. Krim, J. P. Gollub, J.-C. Géminard, J.C. Géminard, J.H. Dieterich, J.K. Morgan, J.K. Morgan, L. Bocquet, L. Vanel, M. Nakatani, M.E. Cates, O. Reynolds, P. Berthoud, P.A. Thompson, S. Nasuno, S. Nasuno, S. Nasuno, S.F. Edwards, S.L. Karner, T. Baumberger, W. Losert, Y. Zhang   +33 more
core   +2 more sources

The nature of the Albstadt Shear Zone, Germany

, 2020
<p><span>The region around the town of Albstadt, SW Germany, is one of the most seismically active regions in Central Europe. In the last century alone three earthquakes with a magnitude greater than five happened and caused major damage. The ruptures occur along the Albstadt Shear Zone (ASZ), an approx.
Mader, Sarah, Reicherter, Klaus, Ritter, Joachim, AlpArray Working Group   +3 more
openaire   +3 more sources

Differential rotation and meridional flow of Arcturus

, 2010
The spectroscopic variability of Arcturus hints at cyclic activity cycle and differential rotation. This could provide a test of current theoretical models of solar and stellar dynamos. To examine the applicability of current models of the flux transport
Brown, Charbonneau, Chatterjee, Dikpati, Gray, Gray, Griffin, Kichatinov, Kitchatinov, Kitchatinov, Kitchatinov, Kitchatinov, Küker, Küker, Küker, Miesch, Ossendrijver, Trimble, Worley, Yoshimura   +19 more
core   +1 more source

Fault–fracture mesh development produces tectonic tremor in fluid-overpressured serpentinized mantle wedge

Communications Earth & Environment
Deep tectonic tremor occurs repeatedly at the base of a forearc mantle wedge corner, where a highly fluid-pressurized serpentinite shear zone is thought to develop.
Ken-ichi Hirauchi, Yurina Nagata, Keishi Okazaki   +2 more
doaj   +1 more source

Modelagem metalogenética para prospecção de urânio nas rochas do núcleo da Anticlinal Abaíra-Jussiape, Chapada Diamantina, Bahia

Brazilian Journal of Geology
Resumo: A Anticlinal Abaíra-Jussiape, com orientação NNW-SSE, é uma culminação antiformal do Cinturão de Dobramentos e Cavalgamentos da Chapada Diamantina Ocidental, no Corredor do Paramirim.
Jocilene dos Santos Santana, Simone Cerqueira Pereira Cruz, Maisa Bastos Abram, Adriano Alberto Marques Martins, Johildo Salomão Figueiredo Barbosa   +4 more
doaj   +1 more source

Correction and accuracy improvement of non-parallel shear zone model

MATEC Web of Conferences, 2018
When applying the non-parallel shear zone model to predict the cutting process parameters of carbon steel workpiece, it is found that there is a big error between the prediction results and the experimental values. And also, the former approach to obtain
Wang Yaoke, Kou Meng, Ding Wei, Ma Huan, Xiong Liangshan   +4 more
doaj   +1 more source

K-Ar illite-mica age constraints on the formation and reactivation history of the El Doctor fault zone, central Mexico

Revista Mexicana de Ciencias Geológicas, 2018
The tectonic history of the Mexican Fold and Thrust Belt exposed in the Sierra Madre Oriental can be assessed in detail by dating the activation of the major shortening structures.
Diana Elizabeth Garduño-Martínez, Teresa Pi Puig, Jesús Solé, Michelangelo Martini, Jorge René Alcalá-Martínez   +4 more
doaj   +1 more source