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GSA Bulletin; October 2003; v. 115; no. 10; p. 1155-1172; DOI: 10.1130/B25214.1
© 2003 Geological Society of America
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"Canons" revisited and reviewed: Lester King's views of landscape evolution considered 50 years later

C.R. Twidale{dagger},1

1 Geology and Geophysics, School of Earth and Environmental Sciences, University of Adelaide, Adelaide, South Australia 5005, Australia

Fifty years after its publication, Lester King's Canons of Landscape Evolution is reviewed and is considered in light of subsequent trends and actual developments. Some of his ideas, such as the role of scarp recession and the antiquity of some surfaces, remain current. His broad view of the world and his interest in major relief anticipated trends that are now fashionable. Some of his interpretations, however, and in particular his downgrading of the importance of structural factors and his linking of scarp retreat and pedimentation, have not stood the test of time. Other concepts, such as the etch or two-stage origin of forms, which were mooted but not fully appreciated in King's day, have come to the forefront, and technological advances in dating and survey, particularly of the ocean floors, have signaled new perspectives in landscape interpretation. Nevertheless, King's was a courageous attempt to provide guidelines for landscape study.

Key Words: L.C. King • models • landscape development • epigene forms • slope form • slope behavior • land surfaces • megageomorphology • etch forms • exhumed forms • paleosurfaces • survival • climatic geomorphology • catastrophism






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