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Pretreatment of samples was discussed very early by de Vries and collaborators, among others. Closely related to pretreatment is the choice of fraction to be dated and chemicals to be used, especially for accelerator mass spectrometry (AMS) measurements.
Calibration against tree rings and comparison with dates obtained using other methods as well as intercomparison projects are partly history but still very actual.
soil genesis and evolution, humus formation and OM metamorphosis, geochronology and stratigraphy of Late Pleistocene and Holocene sediments).
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The time-width of an organism refers to its total growth and exchange period with the biosphere.Chemists, geophysicists, botanists, physiologists, statisticians, and other researchers have contributed to a prosperous interdisciplinary development.
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