Heat alterations of flint artefacts: archaeological evidence, experiments and analyses

Heat treatment of flint and other knappable materials has been recognized among prehistoric archaeological lithics, leading to a wide range of experiments and archaeometric analyses. The aim of these analyses was to shed light on the mechanical and chemical changes that occur in lithics (flints) sub...

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Main Authors: Мaria Gurova, Polina Andreeva, Aleksandar Nikolov, Borislav Barbov, Maria Kostadinova-Avramova
Format: Article
Language:Bulgarian
Published: Association of Bulgarian Archaeologists 2020-06-01
Series:Българско е-Списание за Археология
Subjects:
Online Access:https://be-ja.org/index.php/journal/article/view/230
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author Мaria Gurova
Polina Andreeva
Aleksandar Nikolov
Borislav Barbov
Maria Kostadinova-Avramova
author_facet Мaria Gurova
Polina Andreeva
Aleksandar Nikolov
Borislav Barbov
Maria Kostadinova-Avramova
author_sort Мaria Gurova
collection DOAJ
description Heat treatment of flint and other knappable materials has been recognized among prehistoric archaeological lithics, leading to a wide range of experiments and archaeometric analyses. The aim of these analyses was to shed light on the mechanical and chemical changes that occur in lithics (flints) subjected to heat treatment, some of which remain poorly understood. This paper does not focus on intentional heat treatment of lithics in its technological aspect – for enhancing the debitage/flaking properties of the raw material. Our scientific goal was to record and document the various changes that occurred in different flint artefacts subjected to heat and to apply the observations to several well-illustrated case-studies of artefacts from archaeological contexts with recognizable stigmata of heat treatment. To achieve a better understanding of the factors and processes that produce alterations we used a range of analytical techniques: micropetrography, microstructural analysis [(powder X-Ray diffraction (XRD)] and Fourier-transform infrared spectroscopy (FTIR) with interesting results.
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spelling doaj.art-5fc06f8008e34d4b8c4de8f9f3703d7f2022-12-22T01:32:27ZbulAssociation of Bulgarian ArchaeologistsБългарско е-Списание за Археология1314-50882020-06-01101111141263Heat alterations of flint artefacts: archaeological evidence, experiments and analysesМaria Gurova0Polina Andreeva1Aleksandar Nikolov2Borislav Barbov3Maria Kostadinova-Avramova4Prehistory Department, National Institute of Archaeology with Museum, Bulgarian Academy of Sciences, 2 Saborna Str., 1000 SofiaDepartment of Paleontology, Stratigraphy and Sedimentology, Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl.24, 1113 SofiaInstitute of Mineralogy and Crystallography, Bulgarian Academy of Science, Acad. G. Bonchev Str., bl.107, 1113 SofiaInstitute of Mineralogy and Crystallography, Bulgarian Academy of Science, Acad. G. Bonchev Str., bl.107, 1113 SofiaNational Institute of Geophysics, Geodesy and Geography, Bulgarian Academy of Sciences, bl. 3 Acad. G. Bonchev Str., 1113 SofiaHeat treatment of flint and other knappable materials has been recognized among prehistoric archaeological lithics, leading to a wide range of experiments and archaeometric analyses. The aim of these analyses was to shed light on the mechanical and chemical changes that occur in lithics (flints) subjected to heat treatment, some of which remain poorly understood. This paper does not focus on intentional heat treatment of lithics in its technological aspect – for enhancing the debitage/flaking properties of the raw material. Our scientific goal was to record and document the various changes that occurred in different flint artefacts subjected to heat and to apply the observations to several well-illustrated case-studies of artefacts from archaeological contexts with recognizable stigmata of heat treatment. To achieve a better understanding of the factors and processes that produce alterations we used a range of analytical techniques: micropetrography, microstructural analysis [(powder X-Ray diffraction (XRD)] and Fourier-transform infrared spectroscopy (FTIR) with interesting results.https://be-ja.org/index.php/journal/article/view/230flint artefactsthermal shockexperimentsheat treatmentpetrographyxrdftir
spellingShingle Мaria Gurova
Polina Andreeva
Aleksandar Nikolov
Borislav Barbov
Maria Kostadinova-Avramova
Heat alterations of flint artefacts: archaeological evidence, experiments and analyses
Българско е-Списание за Археология
flint artefacts
thermal shock
experiments
heat treatment
petrography
xrd
ftir
title Heat alterations of flint artefacts: archaeological evidence, experiments and analyses
title_full Heat alterations of flint artefacts: archaeological evidence, experiments and analyses
title_fullStr Heat alterations of flint artefacts: archaeological evidence, experiments and analyses
title_full_unstemmed Heat alterations of flint artefacts: archaeological evidence, experiments and analyses
title_short Heat alterations of flint artefacts: archaeological evidence, experiments and analyses
title_sort heat alterations of flint artefacts archaeological evidence experiments and analyses
topic flint artefacts
thermal shock
experiments
heat treatment
petrography
xrd
ftir
url https://be-ja.org/index.php/journal/article/view/230
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AT borislavbarbov heatalterationsofflintartefactsarchaeologicalevidenceexperimentsandanalyses
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