Results 221 to 230 of about 309,304 (235)
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Wind shears in the meteor zone

Planetary and Space Science, 1968
Abstract Records of meteor drifts obtained during the I.Q.S.Y. with the radio-meteor technique have been used to resolve wind shears in the 80–100-km region of the upper atmosphere. Some theoretical aspects relevant to the technique of observation are being dealt with and comparison is made with wind shear data obtained by different methods. Two main
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Kinematic indicators in shear zones

1992
Shear zones are fundamental components of all continental margin orogenic belts, irrespective of style or age. They can occur at any depth in the lithosphere and may be cataclastic, transitional, or mylonitic. They dominate much large- and small-scale lithospheric deformation and control the formation and siting of many economic deposits.
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Is the Hercynien belt of Brittany a major shear zone?

Nature, 1980
In the Hercynian belt of Brittany (France), large localized shear zones indicate dextral transcurrent shearing. In this letter regional Hercynian structures and their relationships with shearing are considered and information obtained by quartz fabric analysis in the central part of the belt, outside the major shear zones, is presented. Fabric patterns
Gapais, Denis, Claude, Le Corre
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Shear zone geometry: A review

Journal of Structural Geology, 1980
Abstract Shear zones may be classified into brittle, brittle-ductile, and ductile shear zones. The geometry and displacement boundary conditions of these zones are established. The geometric characteristics of ductile shear zones relevant to geological studies are described: orientations and values of principal finite strains, rotation, and ...
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Shear zones and rock history

Tectonophysics, 1995
Abstract Shear zones that have widened with time can display margin-to-interior microstructural profiles unlike the real microstructural history of the interior rocks. Shear zones that have not widened with time can provide more reliable views of microstructural history, and therefore of deformation processes.
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Eddy diffusion in shear zones

Quarterly Journal of the Royal Meteorological Society, 1963
C. H. B. Priestley, P. G. Saffman
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Occurrence and features of shear zones in clay

1998
Rupture in natural clays is often brittle and leads to formation of shear surfaces or zones. This may be observed either in laboratory tests or in situ. After a discussion of laboratory evidences, the paper describes the features of shear structures induced in natural deposits during engineering works or by geological phenomena.
PICARELLI, Luciano   +4 more
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Shear zones — an introduction and overview

Geological Society, London, Special Publications, 2004
Geoffrey Ian Alsop, Robert E. Holdsworth
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Shear zones in the iberian arc

Journal of Structural Geology, 1980
Pierre Choukroune   +1 more
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