transects have demonstrated continuing erosion and eastward drifting to accreting sectors at Cormoran Pt and Sandy Pt. Estimates of areal and volumetric losses and gains show a net loss from the beach system, some of the sand being carried on to backshore
dunes and some being removed offshore to the extensive bar system that runs out to Middle Bank. (L'A.).
is essential. Techniques currently being developed to recognize the attributes of eroding systems and to model their behaviour over space and time are outlined here.
, with special reference to the dune topography of the Nepean Peninsula, and the cliffs and shore platforms cut in dune calcarenite on the southern (ocean) coastline. Cliff sections show buried soils, the older terra rossae and rendzinas being of Pleistocene age
In the last decade there have been several important developments in earth sciences with profound repercussions for Australasian geomorphology. Seventeen essays presented here reflect some of the achievements as well as some of the difficulties
and sediment loads have been drastically modified, and sedimentation has accelerated in many estuaries and deltaic areas, as well as locally in coastal waters off river mouths. The pattern of impact is traced in each of the river catchments, and at and around