New <sup>10</sup>Be exposure ages improve Holocene ice sheet thinning history near the grounding line of Pope Glacier, Antarctica

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Abstract < 300  m a.s.l.; metres above sea level) that are uncomplicated by either nuclide inheritance or scatter due to localised topographic complexities; this makes the trajectory for the latter stages of deglaciation uncertain. This paper presents 12 new 10 Be exposure ages from erratic cobbles collected from the western flank of Mt. Murphy, within 160 m of the modern ice surface and 1 km from the present grounding line. The ages comprise two tightly clustered populations with mean deglaciation ages of 7.1 ± ± - 1 ∼ ± ±  0.4 ka). Taken together, the results presented here suggest that early- to mid-Holocene thinning of Pope Glacier occurred over a shorter interval than previously assumed and permit a longer duration over which subsequent late Holocene re-thickening could have occurred.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: New ¹⁰Be exposure ages improve Holocene ice sheet thinning history near the grounding line of Pope Glacier, Antarctica ; volume:16 ; number:12 ; year:2022 ; pages:4887-4905 ; extent:19
The Cryosphere ; 16, Heft 12 (2022), 4887-4905 (gesamt 19)

Creator: Adams, Jonathan R.
Johnson, Joanne S.
Roberts, Stephen J.
Mason, Philippa J.
Nichols, Keir A.
Venturelli, Ryan A.
Wilcken, Klaus
Balco, Greg
Goehring, Brent
Hall, Brenda
Woodward, John
Rood, Dylan H.

DOI: 10.5194/tc-16-4887-2022

URN: urn:nbn:de:101:1-2022120804193286930984

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:36 AM CEST

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Associated

Adams, Jonathan R.
Johnson, Joanne S.
Roberts, Stephen J.
Mason, Philippa J.
Nichols, Keir A.
Venturelli, Ryan A.
Wilcken, Klaus
Balco, Greg
Goehring, Brent
Hall, Brenda
Woodward, John
Rood, Dylan H.

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