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Persistent and ancient rivers. Some australian examples

Persistent and ancient rivers. Some australian examples
Rivers are positive feedback systems and, once established and dominant, tend to maintain and enhance that dominance. Thus, major rivers ought to persist. Rivers, some 60 m.y. old (Eocene), that are extant and have been continuously active since

Lineage as a factor in landscape analysis

The reasons for the initiation of many landforms can in many instances be traced to various magmatic, thermal, tectonic, and sedimentological events, some of which took place in distant geological time. Many landforms are in reality multistage

Landforms ancient and recent : the paradox

Very old etchforms of Cretaceous age or older (Pangaean surfaces) are preserved in many parts of the world. Some have been exposed to the elements for very long periods and their persistence poses problems. Moreover, landforms are actively

The enigma of survival problems posed by very old paleosurfaces

Surfaces and forms that closely simulate their earliest Cenozoic and Mesozoic precursors are preserved in many parts of the world. It is suggested that, in some circumstances, changes over time have been so slow that the essential character

Ultimate and proximate origins : tests based in the geomorphic evolution of the southeastern Gawler Craton and the Stuart and Spencer Shelves, South Australia

, or precise to be usable; indeed in some instances, as when considering the origin of evolutionary forms, restricted and categoric conclusions may be inappropriate. It is possible to link landforms to events of the geologically distant past, and reasons