Climate archives from 90 to 250ka in horizontal and vertical ice cores from the allan hills blue ice area, antarctica

Nicole E. Spaulding; John Andrew Higgins; Andrei V. Kurbatov; Michael L. Bender; Steven A. Arcone; Seth Campbell; Nelia W. Dunbar; Laura M. Chimiak; Douglas S. Introne; Paul A. Mayewski

doi:10.1016/j.yqres.2013.07.004

Climate archives from 90 to 250ka in horizontal and vertical ice cores from the allan hills blue ice area, antarctica

Nicole E. Spaulding, John Andrew Higgins, Andrei V. Kurbatov, Michael L. Bender, Steven A. Arcone, Seth Campbell, Nelia W. Dunbar, Laura M. Chimiak, Douglas S. Introne, Paul A. Mayewski

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22 Scopus citations

Abstract

Terrestrial meteorite ages indicate that some ice at the Allan Hills blue ice area (AH BIA) may be as old as 2.2Ma. As such, ice from the AH BIA could potentially be used to extend the ice core record of paleoclimate beyond 800ka. We collected samples from 5 to 10cm depth along a 5km transect through the main icefield and drilled a 225m ice core (S27) at the midpoint of the transect to develop the climate archive of the AH BIA. Stable water isotope measurements (δD) of the surface chips and of ice core S27 yield comparable signals, indicating that the climate record has not been significantly altered in the surface ice. Measurements of ⁴⁰Ar_atm and δ¹⁸O_atm taken from ice core S27 and eight additional shallow ice cores constrain the age of the ice to approximately 90-250ka. Our findings provide a framework around which future investigations of potentially older ice in the AH BIA could be based.

Original language	English (US)
Pages (from-to)	562-574
Number of pages	13
Journal	Quaternary Research (United States)
Volume	80
Issue number	3
DOIs	https://doi.org/10.1016/j.yqres.2013.07.004
State	Published - Nov 2013

All Science Journal Classification (ASJC) codes

Arts and Humanities (miscellaneous)
Earth-Surface Processes
General Earth and Planetary Sciences

Keywords

Allan Hills
Ar
Blue ice area
Ice core
Marine Oxygen Isotope Stage 5.5
Marine Oxygen Isotope Stage 7
Termination II
Termination III
δD
δO

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10.1016/j.yqres.2013.07.004

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Spaulding, N. E., Higgins, J. A., Kurbatov, A. V., Bender, M. L., Arcone, S. A., Campbell, S., Dunbar, N. W., Chimiak, L. M., Introne, D. S., & Mayewski, P. A. (2013). Climate archives from 90 to 250ka in horizontal and vertical ice cores from the allan hills blue ice area, antarctica. Quaternary Research (United States), 80(3), 562-574. https://doi.org/10.1016/j.yqres.2013.07.004

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title = "Climate archives from 90 to 250ka in horizontal and vertical ice cores from the allan hills blue ice area, antarctica",

abstract = "Terrestrial meteorite ages indicate that some ice at the Allan Hills blue ice area (AH BIA) may be as old as 2.2Ma. As such, ice from the AH BIA could potentially be used to extend the ice core record of paleoclimate beyond 800ka. We collected samples from 5 to 10cm depth along a 5km transect through the main icefield and drilled a 225m ice core (S27) at the midpoint of the transect to develop the climate archive of the AH BIA. Stable water isotope measurements (δD) of the surface chips and of ice core S27 yield comparable signals, indicating that the climate record has not been significantly altered in the surface ice. Measurements of 40Aratm and δ18Oatm taken from ice core S27 and eight additional shallow ice cores constrain the age of the ice to approximately 90-250ka. Our findings provide a framework around which future investigations of potentially older ice in the AH BIA could be based.",

keywords = "Allan Hills, Ar, Blue ice area, Ice core, Marine Oxygen Isotope Stage 5.5, Marine Oxygen Isotope Stage 7, Termination II, Termination III, δD, δO",

author = "Spaulding, {Nicole E.} and Higgins, {John Andrew} and Kurbatov, {Andrei V.} and Bender, {Michael L.} and Arcone, {Steven A.} and Seth Campbell and Dunbar, {Nelia W.} and Chimiak, {Laura M.} and Introne, {Douglas S.} and Mayewski, {Paul A.}",

note = "Funding Information: Funding for this work was provided by NSF grants ANT-0838843 and EAR-1027960 . The authors wish to thank RPSC and Kenn Borek Air Ltd., Kristin Schild, Melissa Rohde, Audrey Yau, Mike Waszkiewicz, Calum Hamilton, Daniel Lesser and Ashley Suitter for logistical, field, and laboratory assistance. The authors also wish to acknowledge two anonymous reviewers whose insightful comments contributed greatly to the quality of this manuscript.",

year = "2013",

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doi = "10.1016/j.yqres.2013.07.004",

language = "English (US)",

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pages = "562--574",

journal = "Quaternary Research (United States)",

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T1 - Climate archives from 90 to 250ka in horizontal and vertical ice cores from the allan hills blue ice area, antarctica

AU - Spaulding, Nicole E.

AU - Higgins, John Andrew

AU - Kurbatov, Andrei V.

AU - Bender, Michael L.

AU - Arcone, Steven A.

AU - Campbell, Seth

AU - Dunbar, Nelia W.

AU - Chimiak, Laura M.

AU - Introne, Douglas S.

AU - Mayewski, Paul A.

N1 - Funding Information: Funding for this work was provided by NSF grants ANT-0838843 and EAR-1027960 . The authors wish to thank RPSC and Kenn Borek Air Ltd., Kristin Schild, Melissa Rohde, Audrey Yau, Mike Waszkiewicz, Calum Hamilton, Daniel Lesser and Ashley Suitter for logistical, field, and laboratory assistance. The authors also wish to acknowledge two anonymous reviewers whose insightful comments contributed greatly to the quality of this manuscript.

PY - 2013/11

Y1 - 2013/11

N2 - Terrestrial meteorite ages indicate that some ice at the Allan Hills blue ice area (AH BIA) may be as old as 2.2Ma. As such, ice from the AH BIA could potentially be used to extend the ice core record of paleoclimate beyond 800ka. We collected samples from 5 to 10cm depth along a 5km transect through the main icefield and drilled a 225m ice core (S27) at the midpoint of the transect to develop the climate archive of the AH BIA. Stable water isotope measurements (δD) of the surface chips and of ice core S27 yield comparable signals, indicating that the climate record has not been significantly altered in the surface ice. Measurements of 40Aratm and δ18Oatm taken from ice core S27 and eight additional shallow ice cores constrain the age of the ice to approximately 90-250ka. Our findings provide a framework around which future investigations of potentially older ice in the AH BIA could be based.

AB - Terrestrial meteorite ages indicate that some ice at the Allan Hills blue ice area (AH BIA) may be as old as 2.2Ma. As such, ice from the AH BIA could potentially be used to extend the ice core record of paleoclimate beyond 800ka. We collected samples from 5 to 10cm depth along a 5km transect through the main icefield and drilled a 225m ice core (S27) at the midpoint of the transect to develop the climate archive of the AH BIA. Stable water isotope measurements (δD) of the surface chips and of ice core S27 yield comparable signals, indicating that the climate record has not been significantly altered in the surface ice. Measurements of 40Aratm and δ18Oatm taken from ice core S27 and eight additional shallow ice cores constrain the age of the ice to approximately 90-250ka. Our findings provide a framework around which future investigations of potentially older ice in the AH BIA could be based.

KW - Allan Hills

KW - Ar

KW - Blue ice area

KW - Ice core

KW - Marine Oxygen Isotope Stage 5.5

KW - Marine Oxygen Isotope Stage 7

KW - Termination II

KW - Termination III

KW - δD

KW - δO

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AN - SCOPUS:84887030082

SN - 0033-5894

VL - 80

SP - 562

EP - 574

JO - Quaternary Research (United States)

JF - Quaternary Research (United States)

IS - 3

ER -

Climate archives from 90 to 250ka in horizontal and vertical ice cores from the allan hills blue ice area, antarctica

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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