Open AccessRate and mode of retrogradation on rocky coasts in Victoria, Australia, and their relationship to sea level changes
Author(s) -
GILL EDMUND D.
Publication year - 1973
Publication title -
boreas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.95
H-Index - 74
eISSN - 1502-3885
pISSN - 0300-9483
DOI - 10.1111/j.1502-3885.1973.tb00252.x
Subject(s) - geology , marine transgression , sea level , cretaceous , siltstone , glacial period , interglacial , retrogradation (starch) , lithology , oceanography , deglaciation , paleontology , structural basin , facies , biochemistry , chemistry , amylose , starch
To understand how the present sea impresses a record of its level on the coast is a prerequisite for reading the records of past sea levels. A first approximation for mean rates of coastal retrogradation since the Flandrian Transgression on the microtidal, open ocean, Meditrerranean‐ climate coast of Western victoria is: (1) Penultimate Glacial basalt 0 cm/yr (no change in gross geometry in spite of quarrying and channel formation). (2)Last Interglacial aeolianite 4 cm/yr. (3) Lower Cretaceous arkose 0.9 cm/yr (4) Lower Cretaceous siltstone 1.75 cm/yr. The rates are so divergent that the record of sea level changes is impressed quite differently on these respective lithologies.