Dating optical

AA(Institute for Geo- and Bioarchaeology, Faculty of Earth and Life Sciences, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands), AB(Institute for Geo- and Bioarchaeology, Faculty of Earth and Life Sciences, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands; Department of Archaeology, Ancient History of Mediterranean Studies and Near Eastern Studies, Faculty of Arts, VU University Amsterdam, De Boelelaan 1105, 1081 HV Amsterdam, the Netherlands), AC(Cluster of Climate Change and Landscape Dynamics, Faculty of Earth and Life Sciences, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands; TNO - Geological Survey of the Netherlands, Princetonlaan 6, 3584 CB Utrecht, the Netherlands), AD(Cluster of Climate Change and Landscape Dynamics, Faculty of Earth and Life Sciences, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands), AE(Cluster of Climate Change and Landscape Dynamics, Faculty of Earth and Life Sciences, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands), AF(Cluster of Climate Change and Landscape Dynamics, Faculty of Earth and Life Sciences, VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands), AG(Soil Geography and Landscape group & Netherlands Centre for Luminescence Dating, Wageningen University, PO Box 47, 6700 AA Wageningen, the Netherlands), AH(Soil Geography and Landscape group & Netherlands Centre for Luminescence Dating, Wageningen University, PO Box 47, 6700 AA Wageningen, the Netherlands) Storm surges have a major impact on land use and human habitation in coastal regions.

dating optical-32

Deposits formed between 1200 and 70 year ago on lower parts of the island, consist of a stacked sequence of clay and sand layers, with the latter being deposited during storm surges.

We dated the sandy laminae of late Holocene storm surges in the clay deposit on Schokland to improve the age model of the island's flooding history during the last 1200 years.

However, in many depositional environments even the OSL signal may not be completely reset at deposition.

In the last decade ALRL has pioneered the measurement of single mineral grains as a method for identifying those grains which were reset, providing methods for dating such complex sediments.

Only between 1-2% of the grains yield any luminescence signal, and of these grains only a small proportion have been reset at deposition.

However, by undertaking large numbers of measurements using the single grain OSL system developed by ALRL staff in collaboration with colleagues in Denmark, it has been possible to date such sediments.

Written by one of the foremost experts on optical dating, this book aims to bring together in a coherent whole the various strands of research that are ongoing in the area.

It gives beginners an introduction to the technique as well as acting as a valuable source of up to date references.

An NERC project with Neil Glasser (Aberystwyth), Stephan Harrison (Exeter) and Duller has used such single grain measurements to date glacigenic sediments from the margins of the Northern Patagonian Ice Sheet, Chile (Duller 2006).

These sediments are extremely challenging for OSL dating.

Sandy intervals of the flood deposits were dated using a series of ten quartz OSL ages, which were obtained using state-of-the-art methods to deal with incomplete resetting of the OSL signal.

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