%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Athanassas, C. D.
%A Bourles, D. L.
%A Braucher, R.
%A Druitt, T. H.
%A Nomikou, P.
%A Leanni, Laetitia
%T Evidence fromcosmic ray exposure (CRE) dating for the existence of a pre-Minoan caldera on Santorini, Greece
%D 2016
%L fdi:010066908
%G ENG
%J Bulletin of Volcanology
%@ 0258-8900
%K In situ cosmogenic Cl-36 ; Caldera ; Paleogeography ; Minoan eruption
%K GRECE
%M ISI:000376278700002
%N 5
%P art. 35 [13 ]
%R 10.1007/s00445-016-1026-3
%U https://www.documentation.ird.fr/hor/fdi:010066908
%> https://www.documentation.ird.fr/intranet/publi/2016/06/010066908.pdf
%V 78
%W Horizon (IRD)
%X Cosmic ray exposure (CRE) datingwas performed on the caldera cliffs of Santorini with the aim of detecting cliff segments predating the Minoan eruption (17th century BCE). The methodology involved the determination of in situ-produced cosmogenic Cl-36 concentration in basaltic-torhyodacitic whole rocks cropping out in the cliffs. After the samples were processed following the chemical protocol of Cl-36 preparation for silicate rocks, Cl-36 concentrations were measured by accelerator mass spectrometry (AMS). Important challenges during the implementation procedure were related to large amounts of radiogenic Cl-36, complex modeling of inherited Cl-36, and dominance of the thermal and epithermal (low-energy) neutron capture production pathway. Nevertheless, quantitative assessments on the basis of the contribution of the lowenergy neutron capture pathway percent to the total production rate validated the calculated CRE dates. Current CRE ages demonstrate that an ancient caldera existed on pre-Minoan Santorini, occupying at least the northern half of the modern-day caldera.
%$ 066 ; 064