A new method for birch tar making with materials available in the Stone Age

Abstract The use of birch tar can be traced back to the European Middle Palaeolithic and is relevant for our understanding of the technical skills and cognitive abilities of Neanderthals. Due to the lack of archaeological evidence, it remains unknown what techniques were used for birch tar making. E...

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Main Authors: Tabea J. Koch, Patrick Schmidt
Format: Article
Language:English
Published: Nature Portfolio 2022-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-04161-3
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author Tabea J. Koch
Patrick Schmidt
author_facet Tabea J. Koch
Patrick Schmidt
author_sort Tabea J. Koch
collection DOAJ
description Abstract The use of birch tar can be traced back to the European Middle Palaeolithic and is relevant for our understanding of the technical skills and cognitive abilities of Neanderthals. Due to the lack of archaeological evidence, it remains unknown what techniques were used for birch tar making. Efficiency was recently used as a proxy to determine the method most likely used in the Middle Palaeolithic. Todtenhaupt et al. have proposed a technique employing a groove-like structure that is comparable with the recently presented condensation method. The groove method resulted in higher tar yields compared to other experimental aceramic production processes. However, the implications for Palaeolithic tar making remain unclear because some of the materials used in the experiment were not available then (polished granite slabs). To approach this problem, we replicated the groove with river cobbles and, in a second experiment with flint fragments, to evaluate whether similar results can be obtained. We were successful in producing birch tar in multiple runs with the cobble- and flint-grooves, which, in addition, proved to be more efficient than the condensation method in terms of tar yield per bark input. Our experimental study provides an additional possibility to make prehistoric birch tar.
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spelling doaj.art-45dbe807b9b74e2e9877b86a8beafb772022-12-22T04:09:14ZengNature PortfolioScientific Reports2045-23222022-01-011211810.1038/s41598-021-04161-3A new method for birch tar making with materials available in the Stone AgeTabea J. Koch0Patrick Schmidt1Department of Early Prehistory and Quaternary Ecology, Eberhard Karls University of TübingenDepartment of Early Prehistory and Quaternary Ecology, Eberhard Karls University of TübingenAbstract The use of birch tar can be traced back to the European Middle Palaeolithic and is relevant for our understanding of the technical skills and cognitive abilities of Neanderthals. Due to the lack of archaeological evidence, it remains unknown what techniques were used for birch tar making. Efficiency was recently used as a proxy to determine the method most likely used in the Middle Palaeolithic. Todtenhaupt et al. have proposed a technique employing a groove-like structure that is comparable with the recently presented condensation method. The groove method resulted in higher tar yields compared to other experimental aceramic production processes. However, the implications for Palaeolithic tar making remain unclear because some of the materials used in the experiment were not available then (polished granite slabs). To approach this problem, we replicated the groove with river cobbles and, in a second experiment with flint fragments, to evaluate whether similar results can be obtained. We were successful in producing birch tar in multiple runs with the cobble- and flint-grooves, which, in addition, proved to be more efficient than the condensation method in terms of tar yield per bark input. Our experimental study provides an additional possibility to make prehistoric birch tar.https://doi.org/10.1038/s41598-021-04161-3
spellingShingle Tabea J. Koch
Patrick Schmidt
A new method for birch tar making with materials available in the Stone Age
Scientific Reports
title A new method for birch tar making with materials available in the Stone Age
title_full A new method for birch tar making with materials available in the Stone Age
title_fullStr A new method for birch tar making with materials available in the Stone Age
title_full_unstemmed A new method for birch tar making with materials available in the Stone Age
title_short A new method for birch tar making with materials available in the Stone Age
title_sort new method for birch tar making with materials available in the stone age
url https://doi.org/10.1038/s41598-021-04161-3
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