aggradational造句

• Aggradational channels commonly form where the slope is  below grade.
• Typical aggradational environments include lowland alluvial rivers, river deltas, and alluvial fans.
• Aggradational environments are often undergoing slow subsidence which balances the increase in land surface elevation due to aggradation.
• Hypothetical valley cross-section illustrating a complex sequence of aggradational ( fill ) and degradational ( cut and strath ) terraces.
• After millions of years, an aggradational environment will become a sedimentary basin, which contains the deposited sediment, including paleochannels and ancient floodplains.
• The aggradational Great Plains cover about 72.4mha area with the Ganga and the Brahmaputra forming the main drainage axes in the major portion.
• Whatever the process this stacking plays an important role in aggradational systems and potentially is one of the leading controls in the formation of levee confined complexes.
• Hypothetical valley cross-section illustrating a complex sequence of aggradational ( fill ) and degradational ( cut and strath ) terraces and deposits ( upland gravels ).
• The approximate elevation of the area around the present site is 1010m MSL . The existing slope angle of 42?suggests a localised aggradational environment dominated by the continuous erosion and sometime the occurrences of destructive land-slides towards an eastern direction.