Generation of Two New Radiocarbon Standards for Compound-Specific Radiocarbon Analyses of Fatty Acids From Bog Butter Finds
Bibliographic Data
| ID | 9243511 |
|---|---|
| Authors | Emmanuelle Casanova (0000-0003-1417-3060), Timothy D J Knowles (0000-0003-4871-5542), Isabella Mulhall, Maeve Sikora, John Smyth (0000-0001-8124-1444), Jessica Smyth, R P Evershed (0000-0002-9483-2750) |
| Year | 2021 |
| Volume | 63 |
| Issue | 3 |
| Pages | 771-783 |
| Publication date | 2021-06-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Radiocarbon (JOURNAL) |
| Journal identifiers | ISSN: 0033-8222 • E-ISSN: 1945-5755 |
| Publisher | Cambridge University Press (CUP) (PUBLISHER) |
| DOI | 10.1017/rdc.2021.15 |
| OpenAlex | W3120972594 |
| Language | EN |
| Citations received | 4 |
| References cited | 24 |
The analysis of processing standards alongside samples for quality assurance in radiocarbon ( 14 C) analyses is critical. Ideally, these standards should be similar both in nature and age to unknown samples. A new compound-specific approach was developed at the University of Bristol for dating pottery vessels using palmitic and stearic fatty acids extracted from within the clay matrix and isolated by preparative capillary gas chromatography. Obtaining suitable potsherds for use as processing standards in such analyses is not feasible, so we suggest that bog butter represents an ideal material for such purposes. We sampled ca. 450 g from two bog butter specimens and homogenized them by melting. We verified the homogeneity of both specimens by characterization of their lipid composition, δ 13 C values of individual lipids, and both bulk- and compound-specific radiocarbon analyses on 10 sub-samples of each bog butter specimen. The weighted means of all 14 C measurements on the bog butter standards are 3777 ± 4 BP (IB33) and 338 ± 3 BP (IB38), thereby providing age-relevant standards for archaeological and historical fatty acids and ensuring the accuracy of radiocarbon determinations of lipids using a compound-specific approach. These new secondary standards will be subjected to an intercomparison exercise to provide robust consensus values
Archaeological science · Archaeology · Bog · Chromatography · Gas chromatography · Geography · Peat · Radiocarbon dating · Archaeology and ancient environmental studies · Chemistry · Environmental Science · Isotope Analysis in Ecology · Mathematics · Pacific and Southeast Asian Studies · Environmental Chemistry · Geology
Chemistry of Archaeological Animal Fats
Direct chemical evidence for widespread dairying in prehistoric Britain
High throughput screening of organic residues in archaeological potsherds using direct acidified methanol extraction
Anta 1 de Val da Laje – the first direct view of diet, dairying practice and socio-economic aspects of pottery use in the final Neolithic of central Portugal
Genomic analysis of Irish bog butter
Pastoralist Foodways Recorded in Organic Residues from Pottery Vessels of Modern Communities in Samburu, Kenya
Spatial and temporal disparities in human subsistence in the Neolithic Rhineland gateway
Section 1
The IAEA 14 C Intercomparison Exercise 1990
Compound-Specific Radiocarbon, Stable Carbon Isotope and Biomarker Analysis of Mixed Marine/Terrestrial Lipids Preserved in Archaeological Pottery Vessels
The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)
Procedures for Comparing and Combining Radiocarbon Age Determinations
Quantification and Distribution of Lipid in Archaeological Ceramics
Chemical evidence of dairying by hunter-gatherers in highland Lesotho in the late first millennium ad
| Citations per year | 0.8 |
|---|---|
| Citation span | 2021 - 2024 (4) |
| Highly cited | No |