Optical dating of cobble surfaces determines the chronology of Holocene beach ridges in Greenland
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Optical dating of cobble surfaces determines the chronology of Holocene beach ridges in Greenland. / Souza, Priscila E.; Sohbati, Reza; Murray, Andrew S.; Clemmensen, Lars B.; Kroon, Aart; Nielsen, Lars.
In: Boreas, Vol. 50, No. 2, 2021, p. 606-618.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Optical dating of cobble surfaces determines the chronology of Holocene beach ridges in Greenland
AU - Souza, Priscila E.
AU - Sohbati, Reza
AU - Murray, Andrew S.
AU - Clemmensen, Lars B.
AU - Kroon, Aart
AU - Nielsen, Lars
PY - 2021
Y1 - 2021
N2 - We constrain the age of a cobble beach ridge system in Greenland using Optically Stimulated Luminescence (OSL) dating of buried cobble surfaces. Luminescence signals fromsix cobbles are measured using infrared (IR) stimulation at 50 degrees C(IR50) and 180 degrees C(pIRIR(180)); these cobbles represent four progressively younger beach ridges lying between similar to 35 and similar to 6 mabove present sea level. Luminescence-depth profiles show that the IR50 signals in all the samples and pIRIR(180) signals in four out of six samples are well bleached to depths >1.2 mminto the cobble surfaces. Equivalent doses in well-bleached cobble surface slices (i.e.
AB - We constrain the age of a cobble beach ridge system in Greenland using Optically Stimulated Luminescence (OSL) dating of buried cobble surfaces. Luminescence signals fromsix cobbles are measured using infrared (IR) stimulation at 50 degrees C(IR50) and 180 degrees C(pIRIR(180)); these cobbles represent four progressively younger beach ridges lying between similar to 35 and similar to 6 mabove present sea level. Luminescence-depth profiles show that the IR50 signals in all the samples and pIRIR(180) signals in four out of six samples are well bleached to depths >1.2 mminto the cobble surfaces. Equivalent doses in well-bleached cobble surface slices (i.e.
U2 - 10.1111/bor.12507
DO - 10.1111/bor.12507
M3 - Journal article
VL - 50
SP - 606
EP - 618
JO - Boreas
JF - Boreas
SN - 0300-9483
IS - 2
ER -
ID: 261381705