 I believe, form regular ripple-mark, yet it may increase the area over which it is to be found. Regular ripple-mark is formed by water which oscillates relatively to the bottom. A pair of vortices, or in some cases four vortices, are established in the...  Proceedings of the Royal Society of London - Page 32de Royal Society (Great Britain) - 1884Affichage du livre entier - À propos de ce livre
 | Sir Norman Lockyer - 1884 - 662 pages
...ripple-mai k may also thus be somewhat prolonged, so that although a uniform current probably cannot form regular ripple-mark, yet it may increase the area over which it is to lie found. Regular ripple-mark is formed by water which oscillates relatively to the bottom. A pair... | |
 | Douglas Wilson Johnson - 1919 - 616 pages
...cannot of itself initiate regularly spaced ripple mark. " Regular ripple mark (oscillation ripples) is formed by water which oscillates relatively to...water; each set of vortices corresponds to a single ripple crest." Forel's conception of an oscillation ripple as a composite of two dunes (current ripples)... | |
 | George Darwin - 1907 - 632 pages
...the results of these observations as follows : — The formation of irregular ripple-marks or dunes by a current is due to the vortex which exists on...periodically, but not with a simple harmonic motion. The successive changes in the vortex motion, whilst ripple-mark is being established, and when the... | |
 | Royal Society (Great Britain) - 1884 - 570 pages
...slope steeper. The ridges are also slowly displaced to leeward. The regular ripple-mark may also thns be somewhat prolonged, so that although a uniform...periodically, but not with a simple harmonic motion. The successive changes in the vortex motion, whilst ripple-mark is being established, and when the... | |
 | Sir Norman Lockyer - 1884 - 1196 pages
...lipple-uiaik may also thus I, e somewhat prolonged, so that although a uniform current probably cannot form regular ripple-mark, yet it may increase the...relatively to the bottom. A pair of vortices, or in s >me cases four vorlices, are e taUished in the water; each set of vortices corresponds to a single... | |
 | Thomas Chrowder Chamberlin - 1916 - 888 pages
...cannot of itself initiate regularly spaced ripple marks. "Regular ripple mark [oscillation ripples] is formed by water which oscillates relatively to...water; each set of vortices corresponds to a single ripple crest." Forel's conception of an oscillation ripple as a composite of two current ripples formed... | |
| |
