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English: Diagram of marine terrace sequence: 1: low tide cliff/ramp with deposition, 2: modern shore (wave-cut/abrasion-) platform, 3: notch/inner edge, modern shoreline angle, 4: modern sea cliff, 5: old shore (wave-cut/abrasion-) platform, 6: paleo-shoreline angle, 7: paleo-sea cliff, 8: terrace cover deposits/marine deposits, colluvium, 9: alluvial fan, 10: decayed and covered sea cliff and ...
A marine terrace represents the former shoreline of a sea or ocean. It can be formed by marine abrasion or erosion of materials comprising the shoreline (marine-cut terraces or wave-cut platforms); the accumulations of sediments in the shallow-water to slightly emerged coastal environments (marine-built terraces or raised beach); or the bioconstruction by coral reefs and accumulation of reef ...
A schematic diagram of the morphology of coastal/marine terraces. Periodic uplift will force old shorelines up, which create the terrace treads. Wave erosion on these old shorelines will produce the scarp, or terrace riser. A satellite image of the Himalayas and the rainshadow effect.
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Nested fill terraces: Nested fill terraces are the result of the valley filling with alluvium, the alluvium being incised, and the valley filling again with material but to a lower level than before. The terrace that results for the second filling is a nested terrace because it has been “nested” into the original alluvium and created a terrace.
The marine terrace's "ecological staircase" of Salt Point State Park is also bound by the San Andreas Fault. Along the coasts of South America marine terraces are present, [44] [54] where the highest ones are situated where plate margins lie above subducted oceanic ridges and the highest and most rapid rates of uplift occur.
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A marsh terrace is an artificially created berm that is built in a wetland to prevent erosion, reduce wave energy, and improve habitat for wildlife. Marsh terracing is most common throughout the upper Gulf Coast of the United States , where it is used to prevent coastal erosion , with 980 linear km (609 mi) having been built in Texas and ...