Impact of luminescence dating on geomorphological and palaeoclimate research in drylands
作者： Ashok K Singhvi , Naomi Porat , None
DOI: 10.1111/J.1502-3885.2008.00058.X
关键词:
摘要: Luminescence dating has truly transformed the science of deserts and drylands necessitated a revision conventional interpretation sedimentary records stratigraphic correlations. This contribution discusses key questions in palaeoclimatology global deserts, meaning luminescence age on desert sand presents review luminescence-dated aeolian from two hemispheres. fact dryland qualitative into quantitative one. Processes ranging past sedimentation rates to dune migration changes surface winds can now be quantified. A inference is that, during past, occurred episodically for limited time durations. Accentuated aggradations specific climatic regimes, timing which was determined by an optimal combination sediment supply, transport preservation or erosion. important implications climatology aspects such as albedo through time. The absence record documents climate erosion should interpreted such. Loess fringes still untapped resource palaeoclimate studies. also outlines new developments made using methods palaeoclimatology.
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