Characterization of historic mortars related to the possibility of their radiocarbon dating, Mikulčice and Pohansko archaeological sites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F23%3A00584465" target="_blank" >RIV/68378297:_____/23:00584465 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985912:_____/23:00584465

Výsledek na webu

<a href="https://doi.org/10.1007/978-3-031-31472-8_14" target="_blank" >https://doi.org/10.1007/978-3-031-31472-8_14</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-031-31472-8_14" target="_blank" >10.1007/978-3-031-31472-8_14</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of historic mortars related to the possibility of their radiocarbon dating, Mikulčice and Pohansko archaeological sites

Popis výsledku v původním jazyce

The archaeological sites of Mikulčice and Pohansko (South Moravia – the Czech Republic) belong to the oldest and the most important localities of Slavic settlement in Central Europe. A number of historic mortars sampled here were collected in order to study their composition, mortar structural characteristics and raw materials provenance. The aim of this study was not only the comparison and characterisation of the historical mortars from these archaeological sites, but we also evaluated the suitability of these mortars to be dated by 14C analysis. The samples were characterised by several analytical techniques as polarised light and scanning electron microscopy, thermal analyses or quantitative X-ray diffraction. Stable isotope analyses and cathodoluminescence were also performed. The collected mortars contained a considerable amount of lime particles that can adversely affect the possibility of 14C radiocarbon dating. According to the results of the analyses, the samples from both localities had a similar character. Mortars were very rich in the binder and contained unburnt limestone fragments that occurred frequently. Unburnt fragments were classified mostly as a micritic limestone contained bioclastic fragments. This material was determined as Ernstbrunn limestones according to the composition and structure. Stable isotope analysis also suggested that all studied lime samples came from a single source. The presence of geogenic carbonates (not fully burnt lime) affects the resulting 14C age of the analysed samples fundamentally. The character of mortars leads to a discussion on how to adapt the separating procedures of the individual fractions and avoid geogenic carbon contamination.

Název v anglickém jazyce

Characterization of historic mortars related to the possibility of their radiocarbon dating, Mikulčice and Pohansko archaeological sites

Popis výsledku anglicky

The archaeological sites of Mikulčice and Pohansko (South Moravia – the Czech Republic) belong to the oldest and the most important localities of Slavic settlement in Central Europe. A number of historic mortars sampled here were collected in order to study their composition, mortar structural characteristics and raw materials provenance. The aim of this study was not only the comparison and characterisation of the historical mortars from these archaeological sites, but we also evaluated the suitability of these mortars to be dated by 14C analysis. The samples were characterised by several analytical techniques as polarised light and scanning electron microscopy, thermal analyses or quantitative X-ray diffraction. Stable isotope analyses and cathodoluminescence were also performed. The collected mortars contained a considerable amount of lime particles that can adversely affect the possibility of 14C radiocarbon dating. According to the results of the analyses, the samples from both localities had a similar character. Mortars were very rich in the binder and contained unburnt limestone fragments that occurred frequently. Unburnt fragments were classified mostly as a micritic limestone contained bioclastic fragments. This material was determined as Ernstbrunn limestones according to the composition and structure. Stable isotope analysis also suggested that all studied lime samples came from a single source. The presence of geogenic carbonates (not fully burnt lime) affects the resulting 14C age of the analysed samples fundamentally. The character of mortars leads to a discussion on how to adapt the separating procedures of the individual fractions and avoid geogenic carbon contamination.

Druh

C - Kapitola v odborné knize

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Conservation and restoration of historic mortars and masonry structures

ISBN

978-3-031-31471-1

Počet stran výsledku

18

Strana od-do

172-189

Počet stran knihy

620

Název nakladatele

Springer

Místo vydání

Cham

Kód UT WoS kapitoly

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