Dating buried glacier ice using cosmogenic 3He in surface clasts: Theory and application to Mullins Glacier, Antarctica
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- 作者：Sean L. Mackay ; smackay@bu.edu" class="auth_mail" title="E-mail the corresponding author ; David R. Marchant marchant@bu.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Cosmogenic-nuclides ; Exposure dating ; Buried ice ; Antarctica ; Debris-covered glacier ; Glacier chronology ; Helium&minus ; 3
- 刊名：Quaternary Science Reviews
- 出版年：2016
- 出版时间：15 May 2016
- 年：2016
- 卷：140
- 期：Complete
- 页码：75-100
- 全文大小：5937 K
文摘
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Cosmogenic nuclide accumulation in clasts transported by glacier ice is examined.
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A modeling framework captures nuclide variability from various exposure pathways.
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Surface clasts display a wide range of nuclide concentrations.
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Nuclide concentrations are used to model a range of ice ages.
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Application of modeling framework suggests ice in Mullins Glacier exceeds 1.6 Ma.