Respuesta :
It is a true statement that due to the particle size being larger, stream gravel needs a swift current to be transported whereas the sand needs a current with less energy.
Sand and gravel beaches are the particularly sensitive to changes in sea level, storm frequency/intensity, wave climate, and the sediment fluxes. Where sediment delivery outpaces the creation of the accommodation space, net progradation may allow for preservation of records of long-term environmental changes, and how coastal system has responded to them.
The chapter reviews the formational mechanisms and the autogenic and allogenic processes responsible for morphologic characteristics and sedimentary architecture of sand- and the gravel-dominated progradational coastal systems, including preservation potential of paleo-environmental archives, across geological and the coastal settings, climatic zones, and sea-level histories.
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