Basal ice accretion and debris entrainment within the coastal ice margin, Law Dome, Antarctica

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Abstract

Basal ice stratigraphy in coastal ice cliffs at the Law Dome margin has revealed the basal accretion of clean and debris-bearing ice, marine congelation ice and granular marine ice inland of the margin. Co-isotopic analysis of δ18O and δD isotopes together with solute chemistry were applied to determine the modes of accretion and debris entrainment. The marine congelation ice and the granular marine ice were formed from the basal freezing of desalinated sea water and the episodic mixture of basal meltwater and sea water, respectively. Two different debris-entrainment mechanisms were identified. -from Author

Original languageEnglish
Pages (from-to)157-166
Number of pages10
JournalJournal of Glaciology
Volume39
Issue number131
Publication statusPublished - 1993
Externally publishedYes

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