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  TOOTHFIR: Presenting a dataset and a preliminary meta-analysis of Fourier Transform Infra-red Spectroscopy indices from archaeological and palaeontological tooth enamel

Fernandes, R., Sponheimer, M., & Roberts, P. (2022). TOOTHFIR: Presenting a dataset and a preliminary meta-analysis of Fourier Transform Infra-red Spectroscopy indices from archaeological and palaeontological tooth enamel. Quaternary International, 2022.01.010. doi:10.1016/j.quaint.2022.01.010.

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 Creators:
Fernandes, Ricardo1, Author              
Sponheimer, Matt, Author
Roberts, Patrick1, Author              
Affiliations:
1Archaeology, Max Planck Institute for the Science of Human History, Max Planck Society, ou_2074312              

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Free keywords: Dataset, Diagenesis, Stable isotopes, Elemental analysis, Tooth enamel, FTIR
 Abstract: The assessment of the preservation status of archaeological and palaeontological tooth enamel is of vital importance in the interpretation of isotopic and elemental analyses that underpin chronological, dietary, and mobility studies. Transmission and ATR Fourier Transform Infra-red Spectroscopy (FTIR) have provided an important means of studying the presence and crystallographic context of key structural groups in tooth enamel. However, differences in sample preparation and measurement methods prevent the setting of absolute references to assess tooth enamel preservation. Here, we present TOOTHFIR, a dataset of FTIR indices developed to study the crystal-chemical properties of enamel bioapatite, from Miocene, Pliocene, Pleistocene, Holocene, and modern samples. Using collected data, we conducted a preliminary statistical meta-analysis to assess inter-lab measurement variability (relying on modern samples) and the extent to which the mixed data remains useful in revealing diagenetic patterns. Our results confirmed significant variations with measurement methodology although it remained possible to observe broad relationships between the values for FTIR indices and environmental parameters. In this respect, we introduced the use of principal component analysis to summarize FTIR data. To improve data comparability and interpretation of preservation status, we suggest several measures.

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Language(s): eng - English
 Dates: 2022-02-122022
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: 1. Introduction
2. Methodology
3. Results
3.1. Comparison of ATR vs. Transmission mode measurements
3.2. Assessment of tooth enamel crystallinity as a function of sample age
3.3. Relationships among PCI, WAMPI, API, and BPI indices according to sample age
3.4. PCA analysis of FTIR data and assessment of relationships with environmental parameters
3.5. Relationships between sample fluorine uptake and FTIR indices
4. Discussion
5. Conclusions
 Rev. Type: No review
 Identifiers: DOI: 10.1016/j.quaint.2022.01.010
Other: shh3152
 Degree: -

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Title: Quaternary International
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: 2022.01.010 Start / End Page: - Identifier: ISSN: 1040-6182
CoNE: https://pure.mpg.de/cone/journals/resource/954925588348