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Oxygen isotope geochemistry of Laurentide ice-sheet meltwater across Termination I

Vetter, Lael; Spero, Howard; Eggins, Stephen; Williams, Carlie; Flower, Benjamin P


We present a new method that quantifies the oxygen isotope geochemistry of Laurentide ice-sheet (LIS) meltwater across the last deglaciation, and reconstruct decadal-scale variations in the Δ18O of LIS meltwater entering the Gulf of Mexico between ~18 and 11 ka. We employ a technique that combines laser ablation ICP-MS (LA-ICP-MS) and oxygen isotope analyses on individual shells of the planktic foraminifer Orbulina universa to quantify the instantaneous Δ18Owater value of Mississippi River...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Quaternary Science Reviews
DOI: 10.1016/j.quascirev.2017.10.007


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