Seismic reflection data show a local sedimentation bedform at the subglacial trough system of Isunnguata Sermia, West Greenland, September 2013

To check the possible presence of a subglacial lake in Isunnguata Sermia, West Greenland we collected two 5 km perpendicular profiles of seismic reflection data. The data revealed a 1.9 km by 450 m and 50 m thick lens-shaped body at the bottom of a subglacial 190 m deep trough, most likely consistin...

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Bibliographic Details
Main Author: Hofstede, Coen Matthijs
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
AWI-20130521
AWI-20130522
AWI-20130532
Binary Object
Binary Object (File Size)
Comment
Event label
File content
ice2sea
Profile ID
Seismic reflection profile
SEISREFL
Greenland
Isunnguata Sermia
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.949168
https://doi.org/10.1594/PANGAEA.949168
Description
Summary:To check the possible presence of a subglacial lake in Isunnguata Sermia, West Greenland we collected two 5 km perpendicular profiles of seismic reflection data. The data revealed a 1.9 km by 450 m and 50 m thick lens-shaped body at the bottom of a subglacial 190 m deep trough, most likely consisting of stratified consolidated sediments possibly overlain by dilatant till. Liquid water seems present at the northern and eastern flank of the subglacial trough. The bed on the northern side of the trough consists of unconsolidated, possibly water containing sediments, whereas on the southern side it consists of more consolidated material.

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