Results 221 to 230 of about 6,471 (265)

Tectonic Stresses in France

1980
A flat jack method has been used to determine the principal stress axes in the Jurassic limestone of the basin of Paris and in neighbouring regions. The results have been compared with a few overcoring measurements in boreholes of a few meters.
C. Paquin, C. Froidevaux
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The origin of tectonic stress in the lithosphere

Tectonophysics, 1984
Abstract The sources of lithospheric stress and their distinctive features are briefly reviewed. It is suggested that there are two main categories of lithospheric stress: renewable stress which persists despite continuing stress relaxation and non-renewable stress which can be dissipated by relief of the initial strain.
M.H.P. Bott, N.J. Kusznir
openaire   +1 more source

Global patterns of tectonic stress

Nature, 1989
Regional patterns of present-day tectonic stress can be used to evaluate the forces acting on the lithosphere and to investigate intraplate seismicity. Most intraplate regions are characterized by a compressional stress regime; extension is limited almost entirely to thermally uplifted regions.
Zoback, Mary Lou, Zoback, Mark D., Adams, J., Assumpção, M., Bell, S., Bergman, E. A., Blümling, P., Brereton, N. R., Denham, D., Ding, J., Fuchs, K., Gay, N., Gregersen, S., Gupta, H. K., Gvishiani, A., Jacob, K., Klein, R., Knoll, P., Magee, M., Mercier, J. L., Müller, B. C., Paquin, C., Rajendran, K., Stephansson, O., Suarez, G., Suter, M., Udias, A., Xu, Z. H., Zhizhin, M.   +28 more
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Central Europe: Active or Residual Tectonic Stresses

pure and applied geophysics, 1977
The regional stress field in the Western Alps and their northern foreland has been investigated by in situ stress determinations. More than 600 strain relief measurements were made with resistance strain gages in boreholes carried out in mines, tunnels and quarries. The stresses calculated and data obtained from other papers were used to get a detailed
Gerhard Greiner, J. Henning Illies
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Tectonic Stress Fields and Karst

2014
Many natural causes exist controlling the formation of fractures. The rock properties relating to the brittleness is one of the most important of them for the variations in natural fracture density. These properties may vary from regional to local scale; they may vary significantly within the rock formations and between formations.
Stefan Shanov, Konstantin Kostov
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Tectonic stress in the Earth’s crust: advances in the World Stress Map project

Geological Society, London, Special Publications, 2003
Abstract Tectonic stress is one of the fundamental data sets in Earth sciences comparable with topography, gravity, heat flow and others. The importance of stress observations for both academic research (e.g. geodynamics, plate tectonics) and applied sciences (e.g.
Sperner, B., Müller, B., Heidbach, O., Delvaux, D., Reinecker, J., Fuchs, K.   +5 more
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The sources of lithospheric tectonic stresses

Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences, 1991
Abstract The stresses associated with large-scale tectonic deformation have three possible origins: (1) plate-boundary forces counterbalanced by viscous drag beneath the plates; (2) density heterogeneities situated within the plates (say at depths shallower than 200 km); (3) mass heterogeneities in the deep mantle.
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Seismic activation of tectonic stresses by mining

Journal of Seismology, 2013
Hard coal mining in the area of the Bytom Syncline (Upper Silesia Coal Basin, Poland) has been associated with the occurrence of high-energy seismic events (up to 109 J; local magnitude up to 4.0), which have been recorded by the local mining seismological network and regional seismological network. It has been noticed that the strongest seismic events
Henryk Marcak, Grzegorz Mutke
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Earthquake Stress Drops, Ambient Tectonic Stresses and Stresses That Drive Plate Motions

pure and applied geophysics, 1977
A variety of geophysical observations suggests that the upper portion of the lithosphere, herein referred to as the elastic plate, has long-term material properties and frictional strength significantly greater than the lower lithosphere. If the average frictional stress along the non-ridge margin of the elastic plate is of the order of a kilobar, as ...
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Regionalization of the Recent Tectonic Stress Field in China and Adjacent Regions

Chinese Journal of Geophysics, 2004
Fu-Ren Xie
exaly