Marshall Valley U-Series Data

This dataset includes 234U/230Th chronologic data for lacustrine carbonates associated with Marshall drift in Marshall Valley, Royal Society Range. These samples are from ice-dammed lake deposits associated with a grounded ice sheet that blocked the valley mouth. Sample chemistry was done at the Uni...

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Bibliographic Details
Main Author: Hall, Brenda
Format: Dataset
Language:English
Published: U.S. Antarctic Program (USAP) Data Center 2022
Subjects:
Last Glacial Maximum
Marshall Drift
MIS 6
234U/230Th Dating
Glaciology
Glaciers/Ice Sheet
Cryosphere
Antarctica
Dammed Lake
Royal Society Range
Marshall Valley
Antarc*
Ice Sheet
Online Access:https://dx.doi.org/10.15784/601528
https://www.usap-dc.org/view/dataset/601528
Description
Summary:This dataset includes 234U/230Th chronologic data for lacustrine carbonates associated with Marshall drift in Marshall Valley, Royal Society Range. These samples are from ice-dammed lake deposits associated with a grounded ice sheet that blocked the valley mouth. Sample chemistry was done at the University of Maine geochemistry laboratory. Processed samples were analyzed on a multicollector ICP-MS at the University of Oxford. Corrected ages reflect a detrital correction based on typical upper-crustal (230Th/232Th) values of 1.21 with a 50% assumed error.

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