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n.1.The smooth, striated, or partially polished surfaces of a fissure or seam, supposed to have been produced by the sliding of one surface on another.
2.A variety of galena found in Derbyshire, England.
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References in periodicals archive ?
The claystone of the overlying Lontova Stage is disturbed by numerous slickensides increasing upwards in number.
clay throughout the profile except for thin surface layer; they crack when dry and have slickensides or lenticular peds.
No evidence of fault movements such as strain indicators or slickensides has been observed in any breccia exposure.
Drill hole three cut a 86 metre wide, strongly fractured and altered graphitic-pyritic pelite unit containing fracturing, grey clay and slickensides.
In addition, how could slickensides (polished and smoothed striations made in hard rock by fault action), fault gouge and breccias (pieces of angular rock and earthy material along faults), and the sharply offset rock layers along faults (rather than layers slumping into faults) have formed in rock that was still soft?
The process is revealed by features such as slickensides, wedge-shaped peds and wide, long cracks.
The engravings are on naturally flat surfaces, slickensides in metamorphic rocks, smoothed during the movement of two masses of rock.
The slickensides along the ped faces show shiny polished surfaces caused by the rubbing that occurs during wetting and drying sequences.
think the most recent movement of the fault has had a predominantly vertical component because slickensides (parallel grooves and scratches on the inside face of the fault) at two spots in the shaley soils indicate mostly vertical slippage.
The core exhibited low Rock Quality Designation (RQD) (0 to 5%), with intense fracturing and evidence of faulting through shearing, slickensides, and hematite on fracture surfaces, as well as flowing conditions.