Opendata, web and dolomites

RELOS SIGNED

Reducing empiricism in luminescence geochronology: Understanding the origins of luminescence from individual sand grains

Total Cost €

0

EC-Contrib. €

0

Partnership

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 RELOS project word cloud

Explore the words cloud of the RELOS project. It provides you a very rough idea of what is the project "RELOS" about.

recombination    luminescence    geology    small    outcomes    climate    budget    signals    literature    evolution    age    improvements    quality    calibration    concerning    investigations    rate    dispersion    unexpected    relos    giving    last    earth    unsatisfactory    variations    conceptual    effect    measured    arising    links    radiation    sediments    models    tested    equilibrium    particle    scales    sized    variety    fundamental    sand    sediment    size    read    almost    spread    ages    de    nature    archaeology    single    hypotheses    daylight    environmental    ma    reliably    dates    dating    arbitrary    changing    completely    imbalance    geometry    exposed    time    mixed    doses    rejection    natural    investigates    quaternary    sources    palaeoanthropology    quantifying    surface    trapping    dosimetry    grains    applicable    dose    ignored    numerical    reliability    samples    history    irradiation    sciences    grain    transport    considerable    data    clear    charge    preserve    sidestepped   

Project "RELOS" data sheet

The following table provides information about the project.

Coordinator
DANMARKS TEKNISKE UNIVERSITET 

Organization address
address: ANKER ENGELUNDSVEJ 1 BYGNING 101 A
city: KGS LYNGBY
postcode: 2800
website: www.dtu.dk

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Denmark [DK]
 Total cost 1˙314˙963 €
 EC max contribution 1˙314˙963 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-09-01   to  2020-08-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    DANMARKS TEKNISKE UNIVERSITET DK (KGS LYNGBY) coordinator 1˙116˙648.00
2    AARHUS UNIVERSITET DK (AARHUS C) participant 198˙315.00

Map

 Project objective

Sediments preserve a history of the evolution of the Earth’s surface and its response to a changing climate – a history that can only be read reliably if we know the age of the sediments. Luminescence dating is widely used in quaternary geology and archaeology, and is applicable to almost all sediments from the last 0.5 Ma – it dates the last time the sediment grains were exposed to daylight. RELOS will improve the reliability of luminescence dating by determining the sources of unexpected spread (over-dispersion) in measured doses derived from sand-sized grains. New hypotheses concerning charge imbalance, charge transport and dose calibration of luminescence signals will be tested by: (i) quantifying the effect of grain size and irradiation geometry/quality on grain-to-grain dose dispersion, and particularly the importance of charge particle equilibrium at these scales; (ii) quantifying dispersion arising from grain-to-grain variations in environmental dose rate; (iii) developing measurement procedures giving the same luminescence response per unit dose as in nature; (iv) developing a dispersion budget and new conceptual/numerical models for luminescence production based on (i) to (iii); and (v) testing the results of these investigations using well-defined natural samples. This project investigates fundamental issues of charge (de)trapping and recombination at small scales that have been completely ignored in previous studies, and problems of luminescence response that are sidestepped in the literature, in part by the unsatisfactory approach of arbitrary data rejection. These studies will result in major improvements in our understanding of the small-scale dosimetry of mixed radiation fields and a step change in the reliability of single-grain luminescence ages. The project links these fundamental studies to clear outcomes of considerable potential value to a variety of fields including earth sciences, archaeology and palaeoanthropology.

 Publications

year authors and title journal last update
List of publications.
2018 J.-P. Buylaert, G. Újvári, A.S. Murray, R.K. Smedley, M. Kook
On the relationship between K concentration, grain size and dose in feldspar
published pages: , ISSN: 1350-4487, DOI: 10.1016/j.radmeas.2018.06.003
Radiation Measurements 2019-07-22
2017 Ajit Singh, Kristina J. Thomsen, Rajiv Sinha, Jan-Pieter Buylaert, Andrew Carter, Darren F. Mark, Philippa J. Mason, Alexander L. Densmore, Andrew S. Murray, Mayank Jain, Debajyoti Paul, Sanjeev Gupta
Counter-intuitive influence of Himalayan river morphodynamics on Indus Civilisation urban settlements
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-017-01643-9
Nature Communications 8/1 2019-07-22
2017 A. Timar-Gabor, J.-P. Buylaert, B. Guralnik, O. Trandafir-Antohi, D. Constantin, V. Anechitei-Deacu, M. Jain, A.S. Murray, N. Porat, Q. Hao, A.G. Wintle
On the importance of grain size in luminescence dating using quartz
published pages: , ISSN: 1350-4487, DOI: 10.1016/j.radmeas.2017.01.009
Radiation Measurements 2019-07-22
2018 A.S. Murray, L.M. Helsted, M. Autzen, M. Jain, J.P. Buylaert
Measurement of natural radioactivity: Calibration and performance of a high-resolution gamma spectrometry facility
published pages: , ISSN: 1350-4487, DOI: 10.1016/j.radmeas.2018.04.006
Radiation Measurements 2019-07-22
2018 K.J. Thomsen, M. Kook, A.S. Murray, M. Jain
Resolving luminescence in spatial and compositional domains
published pages: , ISSN: 1350-4487, DOI: 10.1016/j.radmeas.2018.06.002
Radiation Measurements 2019-07-22
2018 T. Stevens, J.-P. Buylaert, C. Thiel, G. Újvári, S. Yi, A. S. Murray, M. Frechen, H. Lu
Ice-volume-forced erosion of the Chinese Loess Plateau global Quaternary stratotype site
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-03329-2
Nature Communications 9/1 2019-07-22
2018 Vicki Hansen, Andrew Murray, Kristina Thomsen, Mayank Jain, Martin Autzen, Jan-Pieter Buylaert
Towards the origins of over-dispersion in beta source calibration
published pages: , ISSN: 1350-4487, DOI: 10.1016/j.radmeas.2018.05.014
Radiation Measurements 2019-07-22
2018 Alastair C. Cunningham, Andrew S. Murray, Simon J. Armitage, Martin Autzen
High-precision natural dose rate estimates through beta counting
published pages: , ISSN: 1350-4487, DOI: 10.1016/j.radmeas.2018.04.008
Radiation Measurements 2019-07-22

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