NDLI: Historical mortars dating from OSL signals of fine grain fraction enriched in quartz

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Historical mortars dating from OSL signals of fine grain fraction enriched in quartz

Content Provider	Scilit
Author	Stella, Giuseppe Fontana, Dorotea Gueli, Anna Troja, Sebastiano Olindo
Copyright Year	2013
Abstract	In the last years the mortar dating through Optically Stimulated Luminescence (OSL) techniques has become a viable support for chronological estimations (date of construction or restoration episodes) of historical buildings. However, the dating of mortar has still open issues mainly regarding the assessment of the bleaching degree of quartz, the analysis of the OSL processes for this type of samples and the need to do appropriate tests for the most correct evaluation of the equivalent dose. This paper discusses the results obtained by OSL dating (blue diode stimulation) on the polymineral fine grain phase, enriched in quartz, extracted from lime mortar samples collected from different sites. Thermal transfer effects, through the behaviour of Equivalent Dose (ED) and recovery tests, degree and time of bleaching were studied. For each mortar sample the adjacent brick was collected; in some cases, sampling of the bricks bracketing a mortar layer was a possibility, thus obtaining a direct comparison with the standard thermoluminescence (TL) dating on the bricks. The results obtained show, for this set of samples, the possibility of dating the mortars through the use of the fine grain fraction provided of a suitable chemical-physical preparation procedure and the verification of the bleaching conditions.
Related Links	https://content.sciendo.com/downloadpdf/journals/geochr/40/3/article-p153.pdf http://link.springer.com/content/pdf/10.2478/s13386-013-0107-8.pdf
Ending Page	164
Page Count	12
Starting Page	153
ISSN	17338387
e-ISSN	18971695
DOI	10.2478/s13386-013-0107-8
Journal	Geochronometria
Issue Number	3
Volume Number	40
Language	English
Publisher	Walter de Gruyter GmbH
Publisher Date	2013-09-01
Access Restriction	Open
Subject Keyword	Geochronometria Building and Construction Luminescence Dating Journal: Geochronometria, Vol- 40, Issue- 1
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences

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