Characterization of a new protocol for mortar dating: 13C and 14C evidences

Marzaioli, Fabio (2011) Characterization of a new protocol for mortar dating: 13C and 14C evidences. Il nuovo cimento C, 34 (5). pp. 217-226. ISSN 1826-9885

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This paper reviews the present knowledge about the analysis of mortars in the framework of artworks absolute chronology determination with the aim to formulate a new methodology capable of systematically and accurately estimating the age of these constructive and/or art materials. The core of the proposed methodology is represented by a physical procedure (ultrasonication) selecting only carbonaceous materials represented by carbonates formed after the absorption of atmospheric CO2 (carbonatation) by mortars (binder) during their setting. With the aim to evaluate the procedure efficiency in the isolation of binder signal from the most important source of carbonates, the proposed procedure was tested on a series of laboratory mortars produced, in a simplified version, in the laboratory environment. Mortar production was characterized by means of a series of measurements allowing to draw important indications about the applied procedure. The radiocarbon value of isolated binder carbonates was compared with the CO2 signal sampled form laboratory air during mortar setting. The observed results confirmed preliminarily the good protocol accuracy for radiocarbon dating suggesting its capability for the application to real study cases.

Item Type: Article
Uncontrolled Keywords: Radioisotope geochronology, isotopic disequilibrium dating ; Electrostatic accelerators ; Mass spectrometers ; Stable isotope geochemistry
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 10 Apr 2020 13:51
Last Modified: 10 Apr 2020 13:51

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