Preservation of stable isotopic composition in charred grains: Implications for paleoenvironmental and archeological research
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F25%3A00619049" target="_blank" >RIV/86652079:_____/25:00619049 - isvavai.cz</a>
Alternative codes found
RIV/68081758:_____/25:00619049 RIV/62156489:43210/25:43926908
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/jqs.3707" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/jqs.3707</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/jqs.3707" target="_blank" >10.1002/jqs.3707</a>
Alternative languages
Result language
angličtina
Original language name
Preservation of stable isotopic composition in charred grains: Implications for paleoenvironmental and archeological research
Original language description
The charring process can preserve archaeobotanical remains, providing valuable insights into past climates, agricultural practices, and plant growth conditions. However, the impact of charring on stable isotopes, especially at temperatures above 300 degrees C, remains poorly understood. To investigate this, wheat (einkorn, emmer) and millet grains were experimentally charred at 300 degrees C, 450 degrees C, and 550 degrees C for 15 min to 48 h under aerobic and anaerobic conditions. Consequently, the stable isotopic ratios of carbon (C-13/C-12, delta C-13), nitrogen (N-15/N-14, delta N-15), and oxygen (O-18/O-16, delta O-18) were determined in fully charred grains with a blackened pericarp, visually comparable to archeological remains. Our results indicate that delta C-13 values are well preserved in charred grains, showing minimal shifts (<0.55 parts per thousand for wheat and <0.2 parts per thousand for millet), while delta N-15 values retained species-specific differences, with moderate variations (<1.31 parts per thousand for wheat and <0.68 parts per thousand for millet) influenced by charring conditions. In contrast, delta O-18 values showed high variability in experimentally charred grains, limiting their reliability for interpretative use. These findings underscore the potential of carbon and, to a lesser extent, nitrogen isotopes in charred grains, for reconstructing ancient growth conditions and improving the understanding of formation processes in archeological research.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10508 - Physical geography
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Quaternary Science
ISSN
0267-8179
e-ISSN
1099-1417
Volume of the periodical
40
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
645-656
UT code for WoS article
001458399900001
EID of the result in the Scopus database
2-s2.0-105001859482