Uppermost crustal structure regulates the flow of the Greenland Ice Sheet

G. A. Jones; A. M. G. Ferreira; B. Kulessa; M. Schimmel; A. Berbellini; A. Morelli

doi:10.1038/s41467-021-27537-5

Nature Communications (Dec 2021)

Uppermost crustal structure regulates the flow of the Greenland Ice Sheet

G. A. Jones,
A. M. G. Ferreira,
B. Kulessa,
M. Schimmel,
A. Berbellini,
A. Morelli

Affiliations

G. A. Jones: Department of Geography, Swansea University
A. M. G. Ferreira: Department of Earth Sciences, University College London
B. Kulessa: Department of Geography, Swansea University
M. Schimmel: Geosciences Barcelona (GEO3BCN-CSIC)
A. Berbellini: Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Bologna
A. Morelli: Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Bologna

DOI: https://doi.org/10.1038/s41467-021-27537-5
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 12

Abstract

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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.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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