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

0

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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.

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

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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