Results 121 to 130 of about 1,551 (156)
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Morphology and microstructures of hydroplastic slickensides in sandstone
Geological Society, London, Special Publications, 1987Summary The High Atlas Mountains (Morocco) provide local basins with good Triassic exposures. Basin formation was induced by normal and strike-slip synsedimentary faults, either sealed by Mesozoic and Cenozoic rocks, or reactivated during Alpine orogeny.
Jean-Pierre Petit, Edgard Laville
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Dynamic Centrifuge Testing of Slickensided Shear Surfaces
Journal of Geotechnical and Geoenvironmental Engineering, 2008Movement along preexisting slickensided rupture surfaces in overconsolidated clay and clay shale slopes can represent a critical sliding mechanism during earthquakes. The seismic behavior of preexisting slickensided surfaces in overconsolidated clay was examined by performing dynamic centrifuge model tests of two slickensided sliding block models ...
Christopher L. Meehan +2 more
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Direct shear testing of polished slickensided surfaces
Landslides, 2010A series of ring shear and direct shear tests were performed to measure the drained residual strength of three clay soils. For each of the soils, slickensided direct shear specimens were prepared by wire-cutting intact specimens, and polishing the resulting shear plane on a variety of surfaces to align the clay particles in the direction of shear ...
Christopher L. Meehan +3 more
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SLICKENSIDES AND FAULT MOVEMENTS
Geological Society of America Bulletin, 1964Slickensides are not an infallible criterion of displacement sense along a fault. Steplike breaks observed along fault surfaces in the Lokulo area, Java, are compared with known displacements and are in conflict with the commonly accepted “smoothness” criterion for determining the sense of displacement.
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Direction dependence of fracture compliance induced by slickensides
GEOPHYSICS, 2014The effect of a fracture on seismic wave propagation can be represented in terms of the normal and shear fracture compliance. In many studies, fractures are assumed to have no preferential orientation for slip along the fracture plane. However, examination of fractures found in recovered cores or in exposed outcrops shows irregularities, such as ...
M. Ahmadi +2 more
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Microscopic wear grooves on slickensides: Indicators of paleoseismicity
Journal of Geophysical Research, 1974The frictional wear of Westerly granite surfaces polished with 0.3-μm Linde A polishing compound was studied on triaxial compression specimens for slip up to 3 mm at confining pressures to 2.9 kbar. A stable sliding to stick-slip transition occurs at 0.3-kbar confining pressure.
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Use of drainage wicks for an embankment on slickensided clay
Canadian Geotechnical Journal, 1991The 650-ha cooling pond for the Genesee thermal power plant near Edmonton required more than 15 km of earth-containment dyke up to 25 m high to be constructed on a high plastic clay foundation. Other embankment construction activity at the Genesee site indicated that there was very little dissipation of construction pore pressure in the foundation ...
G. J. Kack +5 more
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Striated Surfaces on Meteorites: Shock Fractures, Not Slickensides
Meteoritics, 1966Abstract Veined and brecciated chondrites commonly display striated fractures which have been interpreted as slickensides (fault dislocations). Observations on several such fractures in various collections suggest they are not true slickensides but, instead, are probably shock features related to shatter coning.
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Mylonite, Slickensides, and the Great Glen Fault
Geological Magazine, 1951AbstractIt is shown that mylonite is extremely rare in the plane of the Great Glen fault, and that horizontal slickensides or friction-grooves directed along the Glen are virtually absent. Grave doubt is consequently thrown on the alleged horizontal displacement in the fault zone.
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On Slickensides or Rock-striations, particularly those of the Chalk
Quarterly Journal of the Geological Society of London, 1875T his subject has been so recently brought under the notice of the Society that I need not describe the appearances; but as there seems to be a most extraordinary divergence of opinion as to their cause I have used the general term of “slickensides,” meaning “slipping of surfaces.” In the ...
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