Comparing Direct Carbonate and Standard Graphite 14 C Determinations of Biogenic Carbonates
Datos Bibliográficos
| ID | 9242547 |
|---|---|
| Autores | Jordon Bright (0000-0002-8067-6283), Chris Ebert, Matthew A Kosnik (0000-0001-5380-7041), John R Southon, Katherine Whitacre, Paolo G Albano (0000-0001-9876-1024), Carola Flores (0000-0002-6759-6545), Thomas K Frazer, Quan Hua (0000-0003-0179-8539), Michał Kowalewski (0000-0002-8575-4711), Julieta C Martinelli, David Oakley (0000-0002-2749-2856), Wesley G Parker, Michael Retelle, Matias do Nascimento Ritter (0000-0001-8150-4443), Marcelo M Rivadeneira (0000-0002-1681-416X), Daniele Scarponi (0000-0001-5914-4947), Yurena Yanes, Martin Zuschin (0000-0002-5235-0198), Darrell S Kaufman (0000-0002-7572-1414) |
| Año | 2021 |
| Volumen | 63 |
| Número | 2 |
| Páginas | 387-403 |
| Fecha de publicación | 2021-04-01 |
| Peer Reviewed | Sí |
| Open Access | Sí |
| Tipo | ARTICLE |
| Revista | Radiocarbon (JOURNAL) |
| Identificadores de la revista | ISSN: 0033-8222 • E-ISSN: 1945-5755 |
| Editorial | Cambridge University Press (CUP) (PUBLISHER) |
| DOI | 10.1017/rdc.2020.131 |
| OpenAlex | W3121476745 |
| Idioma | EN |
| Citas recibidas | 3 |
| Referencias citadas | 51 |
The direct carbonate procedure for accelerator mass spectrometry radiocarbon (AMS 14 C) dating of submilligram samples of biogenic carbonate without graphitization is becoming widely used in a variety of studies. We compare the results of 153 paired direct carbonate and standard graphite 14 C determinations on single specimens of an assortment of biogenic carbonates. A reduced major axis regression shows a strong relationship between direct carbonate and graphite percent Modern Carbon (pMC) values (m = 0.996; 95% CI [0.991–1.001]). An analysis of differences and a 95% confidence interval on pMC values reveals that there is no significant difference between direct carbonate and graphite pMC values for 76% of analyzed specimens, although variation in direct carbonate pMC is underestimated. The difference between the two methods is typically within 2 pMC, with 61% of direct carbonate pMC measurements being higher than their paired graphite counterpart. Of the 36 specimens that did yield significant differences, all but three missed the 95% significance threshold by 1.2 pMC or less. These results show that direct carbonate 14 C dating of biogenic carbonates is a cost-effective and efficient complement to standard graphite 14 C dating
Carbon fibers · Carbonate · Composite material · Graphite · Metallurgy · Mineralogy · Radiocarbon dating · Archaeology and ancient environmental studies · Chemistry · Geology and Paleoclimatology Research · Isotope Analysis in Ecology · Materials Science · Environmental Chemistry · Geology · Paleontology
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| Obras citantes distintas | 3 |
|---|---|
| Citas por año | 0,75 |
| Intervalo de citas | 2022 - 2024 (3) |
| Velocidad de citación | recent |
| Altamente citado | No |
| Tipos de cita | Neutras: 1 |