Luminescence dating (OSL and TL); Quartz inclusion technique; Polymineral fine grain technique; Brick; Early medieval
Abstract :
[en] An experimental intercomparison was performed with brick samples from an early medieval building in the west of France, the St-Philbert-de-Grandlieu abbey. A potentially complex set of microdosimetric problems emerged from characterisation measurements, providing a robust test of the routine procedures used by each laboratory. The dating results obtained using quartz coarse grains and fine grain samples span over a large period of time, exhibiting overdispersion, and where systematic deviations appear between quartz and fine grain chronologies. Factors causing such scatter are analysed in detail, including internal radioactivity of quartz grains, millimetre-scale heterogeneity in the fabric, and the observation and modelling of fading behaviour of fine grain minerals.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Guibert, Pierre
Bailiff, Ian
Blain, Sophie ; Université de Liège - ULiège > Département des sciences historiques > Labo de dendrochronologie
Gueli, Anna
Martini, Marco
Sibilia, Emanuela
Stella, Giuseppe
Troja, Olindo
Language :
English
Title :
Luminescence dating of architectural ceramics from an early medieval abbey: the St-Philbert intercomparison (Loire Atlantique, France)
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