Testing for sufficient signal resetting during sediment transport using a polymineral multiple-signal luminescence approach.

T. Reimann, P.D. Notenboom, M.A. De Schipper, J. Wallinga

Research output: Contribution to journalArticleAcademicpeer-review

26 Citations (Scopus)

Abstract

Abstract We present a multiple luminescence signal measurement procedure that simultaneously measures six different luminescence signals from a single polymineral aliquot (i.e. multiple-signal, short MS-SAR approach). The six signals show different bleaching rates in bleaching experiments, ranging from rapid bleaching for the quartz dominated blue stimulated luminescence signal (measured at 125 °C, BSL-125), to the slow-bleaching polymineral thermoluminescence signal. The bleaching rate of the infrared stimulated luminescence (IRSL) measured at room temperature (IR-25) and elevated temperature post-IR IRSL (pIRIR-90, pIRIR-155, pIRIR-225) signals decrease with increasing measurement temperature. Owing to these different bleaching rates, the MS-SAR approach allows inference of the degree of bleaching, and thereby information on the transport history of sediments. We test this approach by applying the MS-SAR to four coastal samples from a well-monitored sand-nourishment site at the Dutch coast. Our results show that the proposed MS-SAR approach can be utilised to construct bleaching plateaus which provide an independent and time-effective measure of the degree of poor bleaching in a sediment sample based on the measurement of only a few large aliquots. We propose that the MS-SAR protocol can be used to profile the age, luminescence properties and degree of bleaching of minimal prepared polymineral. This pre-profiling will allow the selection of suitable samples for full luminescence dating analysis in a target-orientated and time-effective manner.
Original languageEnglish
Pages (from-to)26-36
JournalQuaternary Geochronology
Volume25
DOIs
Publication statusPublished - 2015

Keywords

  • optically stimulated luminescence
  • anomalous fading correction
  • regenerative-dose protocol
  • ir irsl protocol
  • single-grains
  • fluvial deposits
  • holocene sediments
  • k-feldspars
  • north-sea
  • quartz

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