Investigations on Age and Genesis of Silcretes in Queensland (Australia) - Preliminary Results
In: Earth Surface Processes and Landforms, Vol. 16 (1991), No. 6, pp. 547 - 554
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Title:
Investigations on Age and Genesis of Silcretes in Queensland (Australia) - Preliminary Results
Year of publication:
1991
Appears in
Earth Surface Processes and Landforms
in:
Vol. 16 (1991), No. 6, pp. 547 - 554
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Abstract:
Silcretes from Queensland (Australia) were dated by means of the electron spin resonance dating technique. The results range from 1.5 to 10.8 million years; therefore, these silcretes were formed between the upper Miocene and the early Pleistocene. For a conclusive interpretation of the data geochemical and thin section analyses were also carried out. ESR dating of silcretes for the first time offers a direct approach to a chronostratigraphic framework of the genesis of these duricrusts, and of the palaeoclimatic events attributed to them.