. Bulletin of the Geological Society of America. Geology; Geology -- United States. FIGURE I.âSection showing the Floor of a Cut Terrace on which rests a Bench. '. and c = Beaches broken into ridgelets. d = A frontal sand bar. W= Old water-level. Whilst the beach may form a frontal barrier, in shallow waterj distant from the Bhore, it may rest directly against the coast, funning a terrace (a, fig. 2 , behind which there is no depression. In this case the surface of the terrace is apt to he defaced by landslides or washes; but the beach, whether in the. Figure â¢-'.â> Floor of â¢< '/'â f
. Bulletin of the Geological Society of America. Geology; Geology -- United States. FIGURE I.âSection showing the Floor of a Cut Terrace on which rests a Bench. '. and c = Beaches broken into ridgelets. d = A frontal sand bar. W= Old water-level. Whilst the beach may form a frontal barrier, in shallow waterj distant from the Bhore, it may rest directly against the coast, funning a terrace (a, fig. 2 , behind which there is no depression. In this case the surface of the terrace is apt to he defaced by landslides or washes; but the beach, whether in the. Figure â¢-'.â> Floor of â¢< '/'â f construction resting on cut terrace. P Frontal pavement of boulders. W Old i r-level. form of a terra< r off-shore barrier, Is very often wanting when the currents are cutting into and washing away the coast i fig. 3). Under such a condi- tion, if a beach he funned, ii is narrow ami temporary, a- it is liable to be washed away or covered by landslides. The eastern ami southeastern coast of Lake Huron commonly illustrate the absence of true beach structure. Another excellent example may be seen at Scarboro heights, a few miles east of Toronto, on Lake Ontario, where the clay banks rise to the heighl l' more than 200 feel and extend fur a distance of uine miles. Here the cliffs ;ii'- being eroded. The waves are nut forming a permanent beach, but the currents are drifting the materials Beveral to the west to build up the barrier-beach in front of Toronto Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Geological Society of America. [New York, etc. ] The Society
Size: 2225px × 1123px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorge, booksubjectgeology, booksubjectgeologyunitedstates
