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EVOLUTION OF THE TWO YOUNGEST (QUATERNARY) SOIL LAYERS IN THE SOUTH‐EASTERN PORTION OF THE AUSTRALIAN ARID ZONE
Author(s) -
JESSUP R. W.
Publication year - 1961
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1961.tb00896.x
Subject(s) - arid , geology , quaternary , aeolian processes , soil water , horizon , vegetation (pathology) , hydrology (agriculture) , earth science , physical geography , geomorphology , paleontology , soil science , geography , medicine , physics , geotechnical engineering , pathology , astronomy
Summary The calcareous materials in the deposits, on which the Bookaloo soils developed, were transported by wind. They were derived through deflation of older soils that occurred both within the region and in an area lying to the west. Wind erosion in the region was confined to a zone in which the climate became arid. Beyond the arid zone there was a sufficient cover of vegetation for landscape stability. In some localities deposits of wind‐blown materials accumulated in the beds of relic streams. The present drainage lines are incised in these deposits. The soils, whose profiles are characterized by only weak horizon differentiation, developed following the onset of wetter climatic conditions.