Optically stimulated luminescence dating of young sediments a review

[ Datation par luminescence stimulée optiquement : quelle signification en cas de blanchiment incomplet des sédiments fluviatiles ? In: Quaternaire, 15, (1-2), 2004, p 143-157 OPTICALLY STIMULATED LUMINESCENCE DATING: HOW SIGNIFICANT IS INCOMPLETE LIGHT EXPOSURE IN FLUVIAL ENVIRONMENTS?

Optically stimulated luminescence dating: how significant is incomplete light exposure in fluvial environments?

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Small aliquot quartz BSL results showed poor luminescence properties due to low luminescence sensitivity of quartz in this area.

The dating results also indicated that glaciofluvial samples deposited close to ice margin (~40 m and ~700 m) and supraglacial debris dominated lateral moraine samples are relatively well-bleached, whereas samples from ground moraine and low terminal moraine were poorly bleached, probably due to containing subglacial and englacial debris.

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However, the dating of mortar has still open issues mainly regarding the assessment of the bleaching degree of quartz, the analysis of the OSL processes for this type of samples and the need to do appropriate tests for the most correct evaluation of the equivalent dose.

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Optically stimulated luminescence (OSL) dating is used to determine the (robust) chronology of the phases of sediment deposition and incision in a headwater sub-basin of the Yzeron Basin, France.

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