Uppermost crustal structure regulates the flow of the Greenland Ice Sheet

Anomalously slow seismic velocities in the upper Greenlandic crust reveal soft sedimentary substrates beneath major outlet glaciers. This, together with elevated geothermal heat flux observed at the onset of fast ice flow, has major implications for ice-sheet dynamics.

Bibliographic Details
Published in:Nature Communications
Main Authors: G. A. Jones, A. M. G. Ferreira, B. Kulessa, M. Schimmel, A. Berbellini, A. Morelli
Format: Article in Journal/Newspaper
Language:English
Published: Nature Portfolio 2021
Subjects:
Science
Q
Greenland
greenlandic
Ice Sheet
Online Access:https://doi.org/10.1038/s41467-021-27537-5
https://doaj.org/article/03390827bb6a4be7a518e9a68cac9748
Description
Summary:Anomalously slow seismic velocities in the upper Greenlandic crust reveal soft sedimentary substrates beneath major outlet glaciers. This, together with elevated geothermal heat flux observed at the onset of fast ice flow, has major implications for ice-sheet dynamics.

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