Browsing by Author "Southon, John R."

Now showing items 6-9 of 9

  • The potential for an independent source of Younger Dryas tree-ring radiocarbon data from the Lake Ontario region, North America, and its palaeoenvironmental context

    Griggs, Carol; Southon, John R.; Kromer, Bernd; Hogg, Alan G.; Grote, Todd; Lorentzen, Brita; Kocik, Cynthla; Kachuck, Samuel; Cathles, Lawrence; Peteet, Dorothy (2015)
    Tree rings are the gold standard for the calibration of radiocarbon dates into calendar years with limited error due to their annual record of radiocarbon content in the atmosphere. Currently, the tree-ring 14C data used ...

  • Punctuated shutdown of Atlantic Meridional Overturning circulation during Greenland Stadial 1

    Hogg, Alan G.; Southon, John R.; Turney, Chris S.M.; Palmer, Jonathan; Bronk Ramsey, Christopher; Fenwick, Pavla; Boswijk, Gretel; Friedrich, Michael; Helle, Gerhard; Hughen, Konrad; Jones, Richard; Kromer, Bernd; Noronha, Alexandra; Reynard, Linda; Staff, Richard; Wacker, Lukas (Nature Publishing Group/Macmillan Publishers Limited, 2016)
    The Greenland Stadial 1 (GS-1; ~12.9 to 11.65 kyr cal BP) was a period of North Atlantic cooling, thought to have been initiated by North America fresh water runof that caused a sustained reduction of North Atlantic ...

  • A revised age for the Kawakawa/Oruanui tephra, a key marker for the Last Glacial Maximum in New Zealand

    Vandergoes, Marcus J.; Hogg, Alan G.; Lowe, David J.; Newnham, Rewi M.; Denton, George H.; Southon, John R.; Barrell, David J.A.; Wilson, Colin J.N.; McGlone, Matt S.; Allan, Aidan S.R.; Almond, Peter C.; Petchey, Fiona; Dabell, Kathleen; Dieffenbacher-Krall, Ann C.; Blaauw, Maarten (Elsevier, 2013)
    The Kawakawa/Oruanui tephra (KOT) is a key chronostratigraphic marker in terrestrial and marine deposits of the New Zealand (NZ) sector of the southwest Pacific. Erupted early during the Last Glacial Maximum (LGM), the ...

  • Selection and treatment of data for radiocarbon calibration: An update to the International Calibration (IntCal) criteria

    Reimer, Paula J.; Bard, Edouard; Bayliss, Alex; Beck, J. Warren; Blackwell, Paul G.; Bronk Ramsey, Christopher; Brown, David M.; Buck, Caitlin E.; Edwards, R. Lawrence; Friedrich, Michael; Grootes, Pieter M.; Guilderson, Thomas, P.; Haflidason, Haflidi; Hajdas, Irka; Hatté, Christine; Heaton, Timothy J.; Hogg, Alan G.; Hughen, Konrad A.; Kaiser, K. Felix; Kromer, Bernd; Manning, Sturt W.; Reimer, Ron W.; Richards, David A.; Scott, Marian E.; Southon, John R.; Turney, Chris S.M.; van der Plicht, Johannes (University of Arizona, 2013)
    High-quality data from appropriate archives are needed for the continuing improvement of radiocarbon calibration curves. We discuss here the basic assumptions behind 14C dating that necessitate calibration and the relative ...