Radiocarbon Dating of Wood Using Different Pretreatment Procedures
Application to the Chronology of Rotoehu Ash, New Zealand
Bibliographic Data
| ID | 9243134 |
|---|---|
| Authors | G M Santos (0000-0002-1153-9349), M I Bird, B PILLANS, L K Fifield, B V Alloway, J Chappell, P A Hausladen, A Arneth |
| Year | 2001 |
| Volume | 43 |
| Issue | 2A |
| Pages | 239-248 |
| Publication date | 2001-01-01 |
| Peer Reviewed | Yes |
| 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/s0033822200038066 |
| OpenAlex | W1826149512 |
| Language | EN |
| Citations received | 26 |
| References cited | 20 |
We compare radiocarbon accelerator mass spectrometry (AMS) ages of wood samples subjected to a conventional acid-base-acid pretreatment with stepped combustion (ABA-SC) with results from the same samples subjected to an acid-base-wet oxidation pretreatment with stepped combustion (ABOX-SC) and cellulose extraction with stepped combustion (CE-SC). The ABOX-SC procedure has been shown previously to lead to lower backgrounds for old charcoal samples. Analyses of relatively uncontaminated “ 14 C-dead” samples of wood suggest that backgrounds of 0.11 ± 0.04 pMC are obtainable for both the ABOX-SC and ABA-SC procedures. Where wood is significantly contaminated the ABOX-SC technique provides significantly better decontamination than either the ABA-SC technique or cellulose extraction alone, although CE-SC can produce comparably low backgrounds to the ABOX-SC procedure. We also report the application of the ABOX-SC, ABA-SC and CE-SC procedures to wood samples associated with the chronologically controversial Rotoehu Ash eruption, New Zealand. New 14 C-AMS dates from wood sampled from below the Rotoehu Ash span an age range of 43–50 ka BP consistent with recently presented OSL dates of 42–44 ka obtained for palaeosols beneath the ash
Accelerator mass spectrometry · Archaeology · Charcoal · Chromatography · Mineralogy · Radiocarbon dating · Archaeology and ancient environmental studies · Chemistry · Environmental Science · Geology and Paleoclimatology Research · Pacific and Southeast Asian Studies · Environmental Chemistry · Geology · Organic Chemistry · Paleontology
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Paleovegetation of marine isotope stages 4 and 3 in Northern New Zealand and the age of the widespread Rotoehu tephra
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| Unique citing works | 26 |
|---|---|
| Citations per year | 1,13 |
| Citation span | 2003 - 2024 (22) |
| Citation velocity | recent |
| Highly cited | No |
| Citation types | Neutral: 24 |