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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Main Author: Hofstede, Coen Matthijs
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.949168
https://doi.org/10.1594/PANGAEA.949168
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spelling ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.949168 2024-10-29T17:44:19+00:00 Seismic reflection data show a local sedimentation bedform at the subglacial trough system of Isunnguata Sermia, West Greenland, September 2013 Hofstede, Coen Matthijs MEDIAN LATITUDE: 67.029881 * MEDIAN LONGITUDE: -48.624580 * SOUTH-BOUND LATITUDE: 67.011055 * WEST-BOUND LONGITUDE: -48.680343 * NORTH-BOUND LATITUDE: 67.055912 * EAST-BOUND LONGITUDE: -48.567941 * DATE/TIME START: 2013-09-22T00:00:00 * DATE/TIME END: 2013-09-24T00:00:00 * MINIMUM ELEVATION: 1353.0 m * MAXIMUM ELEVATION: 1398.0 m 2022 text/tab-separated-values, 46 data points https://doi.pangaea.de/10.1594/PANGAEA.949168 https://doi.org/10.1594/PANGAEA.949168 en eng PANGAEA Hofstede, Coen Matthijs; Wilhelms, Frank; Neckel, Niklas; Fritzsche, Diedrich; Beyer, Sebastian; Hubbard, Alun L; Pettersson, Rickard; Eisen, Olaf (2023): The Subglacial Lake That Wasn't There: Improved Interpretation From Seismic Data Reveals a Sediment Bedform at Isunnguata Sermia. Journal of Geophysical Research: Earth Surface, 128(10), e2022JF006850, https://doi.org/10.1029/2022JF006850 https://doi.pangaea.de/10.1594/PANGAEA.949168 https://doi.org/10.1594/PANGAEA.949168 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess AWI-20130521 AWI-20130522 AWI-20130532 Binary Object Binary Object (File Size) Comment Event label File content ice2sea Profile ID Seismic reflection profile SEISREFL dataset 2022 ftpangaea https://doi.org/10.1594/PANGAEA.94916810.1029/2022JF006850 2024-10-02T00:42:44Z 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. Dataset Greenland PANGAEA - Data Publisher for Earth & Environmental Science Greenland Isunnguata Sermia ENVELOPE(-50.167,-50.167,67.183,67.183) ENVELOPE(-48.680343,-48.567941,67.055912,67.011055)
institution Open Polar
collection PANGAEA - Data Publisher for Earth & Environmental Science
op_collection_id ftpangaea
language English
topic AWI-20130521
AWI-20130522
AWI-20130532
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Binary Object (File Size)
Comment
Event label
File content
ice2sea
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Seismic reflection profile
SEISREFL
spellingShingle AWI-20130521
AWI-20130522
AWI-20130532
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Binary Object (File Size)
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ice2sea
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SEISREFL
Hofstede, Coen Matthijs
Seismic reflection data show a local sedimentation bedform at the subglacial trough system of Isunnguata Sermia, West Greenland, September 2013
topic_facet AWI-20130521
AWI-20130522
AWI-20130532
Binary Object
Binary Object (File Size)
Comment
Event label
File content
ice2sea
Profile ID
Seismic reflection profile
SEISREFL
description 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.
format Dataset
author Hofstede, Coen Matthijs
author_facet Hofstede, Coen Matthijs
author_sort Hofstede, Coen Matthijs
title Seismic reflection data show a local sedimentation bedform at the subglacial trough system of Isunnguata Sermia, West Greenland, September 2013
title_short Seismic reflection data show a local sedimentation bedform at the subglacial trough system of Isunnguata Sermia, West Greenland, September 2013
title_full Seismic reflection data show a local sedimentation bedform at the subglacial trough system of Isunnguata Sermia, West Greenland, September 2013
title_fullStr Seismic reflection data show a local sedimentation bedform at the subglacial trough system of Isunnguata Sermia, West Greenland, September 2013
title_full_unstemmed Seismic reflection data show a local sedimentation bedform at the subglacial trough system of Isunnguata Sermia, West Greenland, September 2013
title_sort seismic reflection data show a local sedimentation bedform at the subglacial trough system of isunnguata sermia, west greenland, september 2013
publisher PANGAEA
publishDate 2022
url https://doi.pangaea.de/10.1594/PANGAEA.949168
https://doi.org/10.1594/PANGAEA.949168
op_coverage MEDIAN LATITUDE: 67.029881 * MEDIAN LONGITUDE: -48.624580 * SOUTH-BOUND LATITUDE: 67.011055 * WEST-BOUND LONGITUDE: -48.680343 * NORTH-BOUND LATITUDE: 67.055912 * EAST-BOUND LONGITUDE: -48.567941 * DATE/TIME START: 2013-09-22T00:00:00 * DATE/TIME END: 2013-09-24T00:00:00 * MINIMUM ELEVATION: 1353.0 m * MAXIMUM ELEVATION: 1398.0 m
long_lat ENVELOPE(-50.167,-50.167,67.183,67.183)
ENVELOPE(-48.680343,-48.567941,67.055912,67.011055)
geographic Greenland
Isunnguata Sermia
geographic_facet Greenland
Isunnguata Sermia
genre Greenland
genre_facet Greenland
op_relation Hofstede, Coen Matthijs; Wilhelms, Frank; Neckel, Niklas; Fritzsche, Diedrich; Beyer, Sebastian; Hubbard, Alun L; Pettersson, Rickard; Eisen, Olaf (2023): The Subglacial Lake That Wasn't There: Improved Interpretation From Seismic Data Reveals a Sediment Bedform at Isunnguata Sermia. Journal of Geophysical Research: Earth Surface, 128(10), e2022JF006850, https://doi.org/10.1029/2022JF006850
https://doi.pangaea.de/10.1594/PANGAEA.949168
https://doi.org/10.1594/PANGAEA.949168
op_rights CC-BY-4.0: Creative Commons Attribution 4.0 International
Access constraints: unrestricted
info:eu-repo/semantics/openAccess
op_doi https://doi.org/10.1594/PANGAEA.94916810.1029/2022JF006850
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