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Research ArticleArticles

The new North American Varve Chronology: A precise record of southeastern Laurentide Ice Sheet deglaciation and climate, 18.2-12.5 kyr BP, and correlations with Greenland ice core records

John C. Ridge, Greg Balco, Robert L. Bayless, Catherine C. Beck, Laura B. Carter, Jody L. Dean, Emily B. Voytek and Jeremy H. Wei
American Journal of Science September 2012, 312 (7) 685-722; DOI: https://doi.org/10.2475/07.2012.01
John C. Ridge
* Department of Earth and Ocean Sciences, Tufts University, Medford, Massachusetts 02155
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  • For correspondence: jack.ridge@tufts.edu
Greg Balco
** Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, California 94709
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Robert L. Bayless
*** Continental Resources, PO Box 269000, Oklahoma City, Oklahoma 73126
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Catherine C. Beck
§ Department of Earth and Planetary Sciences, Rutgers University, New Brunswick, New Jersey 08854
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Laura B. Carter
§§ School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Rd., Bristol, United Kingdom BS8 1RJ
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Jody L. Dean
* Department of Earth and Ocean Sciences, Tufts University, Medford, Massachusetts 02155
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Emily B. Voytek
§§§ Large Lakes Observatory and Department of Geological Sciences, University of Minnesota Duluth, Duluth, Minnesota 55812
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Jeremy H. Wei
‡ Department of Geosciences, University of Massachusetts, Amherst, Massachusetts 01003-9297
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Article Information

vol. 312 no. 7 685-722
DOI 
https://doi.org/10.2475/07.2012.01

Published By 
American Journal of Science
Print ISSN 
0002-9599
Online ISSN 
1945-452X
History 
  • Published online November 12, 2012.

Copyright & Usage 
© 2012 American Journal of Science

Author Information

  1. John C. Ridge*,†,
  2. Greg Balco**,
  3. Robert L. Bayless***,
  4. Catherine C. Beck§,
  5. Laura B. Carter§§,
  6. Jody L. Dean*,
  7. Emily B. Voytek§§§ and
  8. Jeremy H. Wei‡
  1. * Department of Earth and Ocean Sciences, Tufts University, Medford, Massachusetts 02155
  2. ** Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, California 94709
  3. *** Continental Resources, PO Box 269000, Oklahoma City, Oklahoma 73126
  4. § Department of Earth and Planetary Sciences, Rutgers University, New Brunswick, New Jersey 08854
  5. §§ School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Rd., Bristol, United Kingdom BS8 1RJ
  6. §§§ Large Lakes Observatory and Department of Geological Sciences, University of Minnesota Duluth, Duluth, Minnesota 55812
  7. ‡ Department of Geosciences, University of Massachusetts, Amherst, Massachusetts 01003-9297
  1. ↵†Corresponding author: jack.ridge{at}tufts.edu
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American Journal of Science: 312 (7)
American Journal of Science
Vol. 312, Issue 7
1 Sep 2012
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The new North American Varve Chronology: A precise record of southeastern Laurentide Ice Sheet deglaciation and climate, 18.2-12.5 kyr BP, and correlations with Greenland ice core records
John C. Ridge, Greg Balco, Robert L. Bayless, Catherine C. Beck, Laura B. Carter, Jody L. Dean, Emily B. Voytek, Jeremy H. Wei
American Journal of Science Sep 2012, 312 (7) 685-722; DOI: 10.2475/07.2012.01

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The new North American Varve Chronology: A precise record of southeastern Laurentide Ice Sheet deglaciation and climate, 18.2-12.5 kyr BP, and correlations with Greenland ice core records
John C. Ridge, Greg Balco, Robert L. Bayless, Catherine C. Beck, Laura B. Carter, Jody L. Dean, Emily B. Voytek, Jeremy H. Wei
American Journal of Science Sep 2012, 312 (7) 685-722; DOI: 10.2475/07.2012.01
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  • Article
    • Abstract
    • INTRODUCTION
    • ANTEVS' NEW ENGLAND VARVE CHRONOLOGY (NEVC)
    • METHODS
    • CRITERIA FOR VARVE RECOGNITION AND MEASUREMENT
    • FORMULATING THE NAVC
    • CALIBRATION OF THE NAVC
    • NEW ENGLAND'S DEGLACIATION CHRONOLOGY VS. THE NAVC
    • THE NAVC AS A CLIMATE RECORD
    • THE NAVC-GREENLAND COMPARISON
    • DISCUSSION
    • CONCLUSIONS
    • DEDICATION
    • ACKNOWLEDGMENTS
    • APPENDIX
    • Footnotes
    • REFERENCES
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Keywords

  • Glacial varves
  • varve chronology
  • radiocarbon chronology
  • deglaciation
  • late Wisconsinan
  • Glacial climate

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