Mathematical model quantifies multiple daylight exposure and burial events for rock surfaces using luminescence dating

Freiesleben, Trine Holm; Sohbati, Reza; Murray, Andrew; Jain, Mayank; Khasawneh, Sahar al; Hvidt, Søren; Jakobsen, Bo

doi:10.1016/j.radmeas.2015.02.004

Cited by 80 publications

(78 citation statements)

References 15 publications

(9 reference statements)

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“…The difference, however, is that the IR 50 signal at the surface of these cobbles is not negligible but starts at some finite value ( Fig. 5C-F; see also Chapot et al 2012;Freiesleben et al 2015;Sohbati et al 2015). This surface signal results from the dose that these surfaces are presumed to have absorbed since deposition.…”

Section: Luminescence-depth Profilesmentioning

confidence: 96%

“…As discussed above, one of the advantages of luminescence rock surface dating compared to conventional sediment dating using sand is that solid granular matrices retain a record of the extent towhich the latent luminescence signal was reset prior to final burial (e.g. Freiesleben et al 2015;Sohbati et al 2015;Jenkins et al 2018). To investigate this, we measured the natural sensitivity-corrected signal (L n /T n ) as a function of depth into the selected cobbles.…”

Section: Luminescence-depth Profilesmentioning

confidence: 99%

“…Thus, larger clasts preserve a record of their bleaching prior to burial, and this information is contained in the shape of the luminescencedepth profile into the rock surface (e.g. Freiesleben et al 2015;Sohbati et al 2015;Jenkins et al 2018). This is a major advantage compared to sediment dating using sand-sized grains, which do not record such information.…”

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confidence: 99%

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Luminescence dating of buried cobble surfaces from sandy beach ridges: a case study from Denmark

Souza

Sohbati

Murray

et al. 2019

Boreas

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Here we investigate the use of optically stimulated luminescence (OSL) for dating cobbles from the body of successive beach ridges and compare cobble surface‐derived ages to standard quartz OSL ages from sand. Between four and eight cobbles and sand samples (age control) were dated with the luminescence method, taken from the modern beach and from beach ridges on the south and north extremes of a prograding spit on the westernmost coast of Lolland, Denmark. Luminescence‐depth profiles perpendicular to the surfaces of the cobbles show that the feldspar infrared signals stimulated at 50 °C were fully reset to various depths into the cobbles prior to final deposition; as a result, the equivalent doses determined from close to the surface of such cobbles can be used to calculate burial ages. Beach‐ridge burial ages given by the average of ages of individual cobbles taken from the same site are consistent, within errors, with the ages derived from the sand samples. Cobble‐ and sand‐derived ages show that the southernmost beach ridge at Albuen was formed around 2 ka ago, indicating that this sandy spit is younger than other coastal systems in Denmark. The agreement between ages derived from clasts and from standard quartz OSL in this study confirms that, even in the absence of sandy sediments, we can reliably date sites using OSL by targeting larger clasts. In addition, the record of prior light exposure contained in the shape of the cobbles’ luminescence‐depth profile removes one of the major uncertainties (i.e. the degree of signal reset prior to burial) in the luminescence dating of high latitude sites.

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Section: Luminescence-depth Profilesmentioning

confidence: 96%

Section: Luminescence-depth Profilesmentioning

confidence: 99%

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Luminescence dating of buried cobble surfaces from sandy beach ridges: a case study from Denmark

Souza

Sohbati

Murray

et al. 2019

Boreas

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“…A clear understanding of luminescence kinetics in combination with theoretical models of sediment movement applied to well constrained field situations will help in the development of powerful luminescence tracers to unravel both current‐ and palaeo‐transport histories. Although we have not discussed pebble‐sized sediments (Liu et al, ) as this research front is very new, it is becoming clear that rock surface bleaching is a powerful tool that can give direct insights into multiple depositional‐erosional events (Freiesleben et al, ). Future efforts may warrant a focus on multisignal approach and understanding the physics of luminescence decay or sensitization in a sediment‐water‐air matrix.…”

Section: Conclusion and Future Research Questionsmentioning

confidence: 99%

Luminescence as a Sediment Tracer and Provenance Tool

Gray

Jain

Sawakuchi

et al. 2019

Reviews of Geophysics

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Luminescence holds unique potential as a sediment tracer and provenance method. The tracer application of luminescence has key advantages including ease of measurement, relatively low cost, and applicability to geologically ubiquitous quartz and feldspar sand and silt. These advantages can help answer fundamental questions about geomorphology, sediment transport, sediment production, and the tectonic/climatic controls on source‐to‐sink sedimentary systems. There is a notable body of research on luminescence as a sediment tracer. These tracer methods range from identifying source locations based on unique luminescence characteristics, to observing changes in luminescence characteristics with transport, to using residual luminescence to infer rates of transport. Previous applications of luminescence include provenance and quantification of fluvial transport rate, tracing of coastal longshore drift, estimations of mixing rates in soil or sediment, and provenance of wind‐blown deposits. The few studies that compare luminescence methods with nonluminescence tracer methods show good agreement. However, more work is needed to test the application of luminescence tracers in sediments. Future research directions should focus on comparing luminescence‐based with nonluminescence tracer methods. Furthermore, research is needed on the effects of specific geomorphic processes on luminescence characteristics and residual doses. While there is significant potential for future research, luminescence is already a useful sediment tracer and provenance tool applicable to a wide range of geomorphic environments.

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“…A further approach is the direct dating of stone surfaces by luminescence methods, which can either be used to reconstruct a burial event (Greilich, Glasmacher, & Wagner, 2005) or an exposure event (e.g. Liritzis, 2011;Sohbati et al, 2011Sohbati et al, , 2012Liritzis et al, 2013;Freiesleben et al, 2015). However, rock surface dating by luminescence is a highly complex method in terms of sample preparation, dose rate estimation, and specific instrumental equipment, and thus is still in an experimental stage of research (Liritzis, 2011;Sohbati et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

OSL Age Determination of Archaeological Stone Structures Using Trapped Aeolian Sediments: A Case Study from the Negev Highlands, Israel

et al. 2016

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Optically stimulated luminescence (OSL) dating is widely applied to sediments in paleoenvironmental sciences. However, there are only limited examples determining the age of archaeological stone structures by OSL using dust deposits. The age of dust deposits associated with ancient buildings may be used to date the onset of settlement (sediment below structures), settlement activity (occupation layer), or the time after a settlement had been abandoned or destroyed (sediment between collapsed roofs and walls). In this study, OSL dating is applied to establish numerical dates for settlement structures situated in the Negev Highlands, Israel. Two archaeological sites are investigated to identify their occupation history, by dating nine samples of aeolian dust trapped within the remains of ancient buildings. The OSL dating technique is applied using coarse grain quartz and a standard single‐aliquot regenerative‐dose (SAR) protocol. It was possible to date the onset of sedimentation in a later phase of the human occupation or shortly after the sites were abandoned, to 3.7 ± 0.3 ka (Intermediate Bronze Age) at the central site and to 2.7 ± 0.2 ka (Iron Age) at the ephemeral site. These results are supported by archaeological evidence gained from pottery finds and the architecture of the ancient buildings.

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Mathematical model quantifies multiple daylight exposure and burial events for rock surfaces using luminescence dating

Cited by 80 publications

References 15 publications

Luminescence dating of buried cobble surfaces from sandy beach ridges: a case study from Denmark

Luminescence dating of buried cobble surfaces from sandy beach ridges: a case study from Denmark

Luminescence as a Sediment Tracer and Provenance Tool

OSL Age Determination of Archaeological Stone Structures Using Trapped Aeolian Sediments: A Case Study from the Negev Highlands, Israel

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