Results 81 to 90 of about 507,255 (329)

Global Patterns of Tectonism on Titan from Mountain Chains and Virgae [PDF]

, 2012
This research is based on the exploration of tectonic patterns on Titan from a global perspective. Several moons in the outer solar system display patterns of surface tectonic features that imply global stress fields driven or modified by global forces ...
Barnes, J. W., Cook, C., Hurford, T., Ktatenhorn, S. A., Radebaugh, J.   +4 more
core   +1 more source

Scale-dependence of lithological control on topography: Bedrock channel geometry and catchment morphometry in western Scotland [PDF]

, 2010
We propose that a scale-dependent topographic signature of erodibility arises due to fluvial and glacial erosion acting on different parts of the landscape at different times.
Bishop, P., Codilean, A.T., Hoey, T.B., Jansen, J.D.   +3 more
core   +3 more sources

Microscopic time‐dependent mechanical behavior of shale derived from nanoindentation

Deep Underground Science and Engineering, EarlyView.
This study conducted grid nanoindentation creep tests to systematically analyze the microscopic creep behaviors of shale. Based on the analysis of creep strain rate sensitivity, the primary mechanism of microscopic creep in shale was found to be the extension and closure of microcracks.
Cunbao Li, Shilei Zhong, Heping Xie, Changtai Zhou, Jianjun Hu   +4 more
wiley   +1 more source

On the origin of the North Pacific arcs [PDF]

, 2004
We present a new hypothesis that relates global plate tectonics to the formation of marginal basins, island arcs, spreading ridges and arc-shaped mountain belts around the North Pacific Ocean.
Fornós, Joan J., Gelabert Ferrer, Bernardí, Rodríguez Perea, Antonio, Sàbat i Montserrat, Francesc   +3 more
core   +3 more sources

Slit tube responses and rock fracture characteristics in slit charge blasting under high in situ stress

Deep Underground Science and Engineering, EarlyView.
In this article, the finite element method‐smoothed particle hydrodynamics adaptive coupling algorithm is applied to numerically simulate and analyze the dynamic response of the slit tube and the crack propagation under high in situ stress. The dynamic response of the slit tube mainly exhibits radial response in the vertical direction of the slit and ...
Zhe Sui, Liyun Yang, Lijun Wu, Chenxi Ding   +3 more
wiley   +1 more source

Lowland river responses to intraplate tectonism and climate forcing quantified with luminescence and cosmogenic 10Be [PDF]

, 2013
Intraplate tectonism has produced large-scale folding that steers regional drainage systems, such as the 1600 km-long Cooper Ck, en route to Australia’s continental depocentre at Lake Eyre.
Bowman, H.H., Codilean, A.T., Cohen, T.J., Fabel, D., Fulioka, T., Gliganic, L.A., Jansen, J.D., Larsen, J.R., May, J.-H., Nanson, G.C., Price, D.M.   +10 more
core   +1 more source

Experimental and constitutive modeling investigations on marble in Jinping Underground Laboratory

Deep Underground Science and Engineering, EarlyView.
The objective of this study is to reveal the underlying mechanisms behind the brittle‐ductile transition of the marble through a combination of experimental research and constitutive modeling. A series of triaxial compression and triaxial cyclic loading tests are conducted.
Susheng Wang, Qiang Zhang, Hao Luo, Zhinan Lin   +3 more
wiley   +1 more source

Study on current geostress characteristics and fracturing countermeasures in low-permeability reservoirs

Journal of Petroleum Exploration and Production Technology
The study investigates the geostress characteristics and fracturing countermeasures in a low-permeability sandstone reservoir within the YP1 well area of the Songliao Basin. The reservoir exhibits multiple layers, thin individual layer thicknesses, and a
Xiangwu Bai, Zhiping Li, Fengpeng Lai
doaj   +1 more source

Assessing the volcanic hazard for Rome. 40Ar/39Ar and In-SAR constraints on the most recent eruptive activity and present-day uplift at Colli Albani Volcanic District [PDF]

, 2016
We present new 40Ar/39Ar data which allow us to refine the recurrence time for the most recent eruptive activity occurred at Colli Albani Volcanic District (CAVD) and constrain its geographic area.
Amato, Amato, B. Giaccio, B. R. Jicha, Cimini, D'Ambrosio, D. M. Palladino, Di Rocco, F. Florindo, F. Marra, Faccenna, Faccenna, Faccenna, Florindo, Freda, Frepoli, Funiciello, G. Sottili, Gaeta, Gaeta, Gaeta, Gaeta, Giaccio, Giaccio, Giaccio, Giordano, Gozzi, J. Taddeucci, Jicha, Karner, Karner, Karner, M. Gaeta, M. Polcari, Marra, Marra, Marra, Marra, Marra, Marra, Montone, Peccerillo, Rita, Rivera, S. Stramondo, Salvi, Sottili, Stramondo, Werner   +48 more
core   +1 more source

A novel construction approach for the pore structure model principally focuses on the controllable roundness of rock particles

Deep Underground Science and Engineering, EarlyView.
Particle rounding effects comparison of different methods: (a), (b), and (c) are the rounding results using the B‐spline curve method with different R; (d), (e), and (f) are the results of vertex rounding substitution method with different rounding radii.
Jiabin Dong, Ning Yang, Yi Jin, Ying Wu, Dandan Liu, Junling Zheng, Jingyan Zhao   +6 more
wiley   +1 more source