Nancy Beavan

Institute of Environmental Science and Research

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Pieter Meiert Grootes

Kiel University

Christopher Bronk

University of Arizona

Toshio Nakamura

Nagoya University

Pavel P. Povinec

Comenius University Bratislava

Elisabetta Boaretto

Weizmann Institute of Science

Steven W. Leavitt

University of Arizona

Paula Reimer

Queen's University Belfast

Ann P. McNichol

Woods Hole Oceanographic Institution

Owen Davis

Sandia National Laboratories

Ramsey Oxford

Cooperative Institutions

University of Arizona

University of Otago

Institut de l'Information Scientifique et Technique

Woodwell Climate Research Center

New York University Press

Royal Holloway University of London

Australian National University

Universidad de Sevilla

Columbia University

Durham University

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From the Guest Editors

Radiocarbon (2004)

Rodger J Sparks Nancy Beavan

An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Content (measure theory)

10.1017/s0033822200039266

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Environmental Influences on Dietary Carbon and ¹⁴C Ages in Modern Rats and Other Species

Radiocarbon (2001)

Nancy Beavan Bruce McFadgen Rodger Sparks

Diet can play a significant role in anomalous radiocarbon ages derived from bone and other tissues when the food web incorporates depleted 14 C reservoirs, such as the marine environment. Dietary effects from a post-bomb carbon variation have also been found in modern invertebrates and populations of Rattus exulans (Beavan and Sparks 1998). We now present the effect on absolute percent modern (pMC) and the conventional radiocarbon age (CRA) of a modern aquatic/terrestrial food web in a volcanic zone of the North Island, New Zealand. At Lake Taupo, geothermal venting transfers 14 C depleted carbon to lake waters, which aquatic plants fix into the food chain; depleted 14 C is shown to then pass on to shellfish, waterfowl, and Norway rat ( Rattus norvegicus ). The geothermally induced 14 C variations from modern atmospheric pMC and CRA can increase apparent 14 C ages by >2000 years.

Accelerator mass spectrometry

Carbon fibers

10.1017/s0033822200031581

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Citations (37)

An extremely low-density human population exterminated New Zealand moa

Nature Communications (2014)

Richard N. Holdaway Morten E. Allentoft Christopher Jacomb Charlotte L. Oskam Nancy Beavan

Megafauna

Extinction (optical mineralogy)

Polynesians

10.1038/ncomms6436

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Citations (57)

Radiocarbon Dates from the Highland Jar and Coffin Burial Site of Phnom Khnang Peung, Cardamom Mountains, Cambodia

Radiocarbon (2015)

Nancy Beavan Derek Hamilton Tep Sokha Kerry L. Sayle

The Cardamom Mountain Jar and Coffin burial site of Phnom Khnang Peung is the most extensive example of the distinctive burial ritual first reported by Beavan et al. (2012a). The 40 intact Mae Nam Noi and late Angkorian-era ceramic jars used as burial vessels held a total of up to 152 individuals, representing the largest corpus of skeletal remains of any of the 10 known Jar and Coffin burial sites that have been discovered in the eastern ranges of the Cardamom Mountains of Cambodia. We report here on the radiocarbon dating of this site and notable burial phenomena, using a Bayesian approach to model the start and end date of activity as well as its overall span. The results of the dating and Bayesian analyses indicate that the Phnom Khnang Peung site's earliest burials began cal AD 1420–1440 ( 95% probability ). Interestingly, the concentration of burial activity spans only 15–45 years ( 95% probability ), despite the large number of inhumations at the site. The 14 C chronology presented for the site places the Highland burial ritual coincident with a period of economic, political, and societal transformations in the lowland Angkorian polity, but the unique burial practice and trade relationships evidenced by the burial goods and maritime trade ware ceramics employed in the burial ritual suggest these Highland people were a culture apart from Angkorian cultural influences.

Coffin

Chronology

Flake

10.2458/azu_rc.57.18194

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Citations (9)

Assembling the Dead, Gathering the Living: Radiocarbon Dating and Bayesian Modelling for Copper Age Valencina de la Concepción (Seville, Spain)

Journal of World Prehistory (2018)

Leonardo García Sanjuán Juan Manuel Vargas Jiménez Luís Miguel Cáceres Puro Manuel Eleazar Costa Caramé Marta Díaz-Guardamino

The great site of Valencina de la Concepción, near Seville in the lower Guadalquivir valley of southwest Spain, is presented in the context of debate about the nature of Copper Age society in southern Iberia as a whole. Many aspects of the layout, use, character and development of Valencina remain unclear, just as there are major unresolved questions about the kind of society represented there and in southern Iberia, from the late fourth to the late third millennium cal BC. This paper discusses 178 radiocarbon dates, from 17 excavated sectors within the c. 450 ha site, making it the best dated in later Iberian prehistory as a whole. Dates are modelled in a Bayesian statistical framework. The resulting formal date estimates provide the basis for both a new epistemological approach to the site and a much more detailed narrative of its development than previously available. Beginning in the 32nd century cal BC, a long-lasting tradition of simple, mainly collective and often successive burial was established at the site. Mud-vaulted tholoi appear to belong to the 29th or 28th centuries cal BC; large stone-vaulted tholoi such as La Pastora appear to date later in the sequence. There is plenty of evidence for a wide range of other activity, but no clear sign of permanent, large-scale residence or public buildings or spaces. Results in general support a model of increasingly competitive but ultimately unstable social relations, through various phases of emergence, social competition, display and hierarchisation, and eventual decline, over a period of c. 900 years.

Beaker

10.1007/s10963-018-9114-2

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Citations (66)

Editorial Board

Radiocarbon (2012)

Nancy Beavan Elisabetta Boaretto Christopher Bronk R.B. Owen K. L. Davis

An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

On board

10.1017/s0033822200047044

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Stable carbon and hydrogen isotopes from bat guano in the Grand Canyon, USA, reveal Younger Dryas and 8.2 ka events

Geology (2008)

Christopher M. Wurster William P. Patterson Donald A. McFarlane Leonard I. Wassenaar Keith A. Hobson

Research Article| September 01, 2008 Stable carbon and hydrogen isotopes from bat guano in the Grand Canyon, USA, reveal Younger Dryas and 8.2 ka events Christopher M. Wurster; Christopher M. Wurster 11School of Geography and Geosciences, University of St. Andrews, St. Andrews, Fife KY8 6AA, Scotland Search for other works by this author on: GSW Google Scholar William P. Patterson; William P. Patterson 22Saskatchewan Isotope Laboratory, Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada Search for other works by this author on: GSW Google Scholar Donald A. McFarlane; Donald A. McFarlane 33Keck Science Center, The Claremont Colleges, 925 North Mills Avenue, Claremont, California 91711, USA Search for other works by this author on: GSW Google Scholar Leonard I. Wassenaar; Leonard I. Wassenaar 44Environment Canada, 11 Innovation Boulevard, Saskatoon, Saskatchewan S7N 3H5, Canada Search for other works by this author on: GSW Google Scholar Keith A. Hobson; Keith A. Hobson 44Environment Canada, 11 Innovation Boulevard, Saskatoon, Saskatchewan S7N 3H5, Canada Search for other works by this author on: GSW Google Scholar Nancy Beavan Athfield; Nancy Beavan Athfield 55Rafter Radiocarbon, National Isotope Centre, GNS Science, P.O. Box 31 312, Gracefield, Lower Hutt, New Zealand Search for other works by this author on: GSW Google Scholar Michael I. Bird Michael I. Bird 11School of Geography and Geosciences, University of St. Andrews, St. Andrews, Fife KY8 6AA, Scotland Search for other works by this author on: GSW Google Scholar Author and Article Information Christopher M. Wurster 11School of Geography and Geosciences, University of St. Andrews, St. Andrews, Fife KY8 6AA, Scotland William P. Patterson 22Saskatchewan Isotope Laboratory, Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada Donald A. McFarlane 33Keck Science Center, The Claremont Colleges, 925 North Mills Avenue, Claremont, California 91711, USA Leonard I. Wassenaar 44Environment Canada, 11 Innovation Boulevard, Saskatoon, Saskatchewan S7N 3H5, Canada Keith A. Hobson 44Environment Canada, 11 Innovation Boulevard, Saskatoon, Saskatchewan S7N 3H5, Canada Nancy Beavan Athfield 55Rafter Radiocarbon, National Isotope Centre, GNS Science, P.O. Box 31 312, Gracefield, Lower Hutt, New Zealand Michael I. Bird 11School of Geography and Geosciences, University of St. Andrews, St. Andrews, Fife KY8 6AA, Scotland Publisher: Geological Society of America Received: 17 Mar 2008 Revision Received: 13 May 2008 Accepted: 16 May 2008 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2008 Geological Society of America Geology (2008) 36 (9): 683–686. https://doi.org/10.1130/G24938A.1 Article history Received: 17 Mar 2008 Revision Received: 13 May 2008 Accepted: 16 May 2008 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Christopher M. Wurster, William P. Patterson, Donald A. McFarlane, Leonard I. Wassenaar, Keith A. Hobson, Nancy Beavan Athfield, Michael I. Bird; Stable carbon and hydrogen isotopes from bat guano in the Grand Canyon, USA, reveal Younger Dryas and 8.2 ka events. Geology 2008;; 36 (9): 683–686. doi: https://doi.org/10.1130/G24938A.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract We inferred climate change through the Pleistocene-Holocene transition from δ13C and δD values of bat guano deposited from 14.5 to 6.5 ka (calendar ka) in Bat Cave, Grand Canyon, Arizona. The δ13C and δD values generally covaried, indicating that regional late Pleistocene climate was relatively cool and wet, and early Holocene climate gradually became warmer with increased summer precipitation until ca. 9 ka, at which time the onset of modern North American Monsoon–like conditions occurred. During the Younger Dryas event, δ13C values decreased, whereas δD values increased, indicating a cool and possibly drier period. We also observed a distinct isotopic anomaly during the 8.2 ka event, at which time both δ13C and δD values decreased. The δ13C values abruptly increased at 8.0 ka, suggesting a rapid change in atmospheric circulation and greater influence from convective storms originating from the south. Deposits of bat guano represent a largely untapped source of paleoenvironmental information that can provide continuous and long-term continental archives of environmental change. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

Boulevard

Guano

10.1130/g24938a.1

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Citations (68)

EDITORIAL BOARD

Radiocarbon (2013)

Édouard Bard Nancy Beavan Elisabetta Boaretto Christopher Bronk Ramsey Oxford

An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

On board

Content (measure theory)

10.1017/s0033822200048840

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No evidence for sample contamination or diet offset for pre-Columbian chicken dates from El Arenal

Proceedings of the National Academy of Sciences (2014)

Nancy Beavan

In their recent paper on ancient DNA from Pacific chickens, Thomson et al. (1) claim in their supporting information that there were “issues with previous radiocarbon dates” published by Storey et al. (2). Factual errors in Thomson et al.’s (1) discussion of the radiocarbon dating must be rectified. I demonstrate that there are no “issues” as claimed by the authors for the chicken bone dates for El Arenal, Chile, which produced reliable pre-Columbian dates at 2 SD, and indicate a pre-Columbian introduction of chickens to South America.

10.1073/pnas.1410794111

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Citations (11)

Limits on the ventilation rate for the deep ocean over the last 12000 years

Climate Dynamics (1986)

M. Andrée H. Oeschger Wallace S. Broecker Nancy Beavan Mieczyslawa Klas

Bioturbation

Sedimentation

10.1007/bf01277046

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Citations (62)