On the detection of the Wilkes Land impact crater
The definitive existence of a giant impact crater, two times larger than the Chixulub crater in the Yucatan peninsula, from an extraterrestrial origin, 1.6 km beneath Wilkes Land, East Antarctica, remain controversial. Here, we use the latest high-resolution gravito-topographic geopotential (SatGrav...
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fttuostrava:oai:dspace.vsb.cz:10084/131644 2023-05-15T13:57:31+02:00 On the detection of the Wilkes Land impact crater Klokočník, Jaroslav Kostelecký, Jan Bezděk, Aleš 2018 16736091 bytes application/pdf http://hdl.handle.net/10084/131644 https://doi.org/10.1186/s40623-018-0904-7 en eng Springer Earth Planets and Space http://doi.org/10.1186/s40623-018-0904-7 © The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. http://creativecommons.org/licenses/by/4.0/ openAccess CC-BY East Antarctica Wilkes Land anomaly impact crater/basin/mascon Antarctic gravito-topographic model gravity aspects article publishedVersion Peer-reviewed 2018 fttuostrava https://doi.org/10.1186/s40623-018-0904-7 2019-11-26T00:21:31Z The definitive existence of a giant impact crater, two times larger than the Chixulub crater in the Yucatan peninsula, from an extraterrestrial origin, 1.6 km beneath Wilkes Land, East Antarctica, remain controversial. Here, we use the latest high-resolution gravito-topographic geopotential (SatGravRET 2014) model over Antarctica to offer a plausible confirmation of its existence. SatGravRET 2014 has a spatial resolution between 1 and 10 km at most places and included contemporary space gravimetry and gradiometry data from GRACE and GOCE, and other data including Bedmap 2 bedrock topography. We computed the gravity disturbances, the Marussi tensor of the second derivatives of the disturbing potential, the gravity invariants and their specific ratio, the strike angles and the virtual deformations to quantify the detailed geophysical features for the Wilkes Land anomaly. This set of the gravitational parameters revealed enhanced and more detailed geophysical features on the Wilkes Land Crater than previously possible only with the traditional gravity anomalies. Our findings support prior studies stating that in the Wilkes Land there is a huge impact crater/basin with detectable gravity mascon which is mostly consistent with the characteristics of an impact crater. Web of Science 70 art. no. 135 Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Wilkes Land Technical University of Ostrava: DSpace VŠB-TUO Antarctic East Antarctica Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) Earth, Planets and Space 70 1 |
institution |
Open Polar |
collection |
Technical University of Ostrava: DSpace VŠB-TUO |
op_collection_id |
fttuostrava |
language |
English |
topic |
East Antarctica Wilkes Land anomaly impact crater/basin/mascon Antarctic gravito-topographic model gravity aspects |
spellingShingle |
East Antarctica Wilkes Land anomaly impact crater/basin/mascon Antarctic gravito-topographic model gravity aspects Klokočník, Jaroslav Kostelecký, Jan Bezděk, Aleš On the detection of the Wilkes Land impact crater |
topic_facet |
East Antarctica Wilkes Land anomaly impact crater/basin/mascon Antarctic gravito-topographic model gravity aspects |
description |
The definitive existence of a giant impact crater, two times larger than the Chixulub crater in the Yucatan peninsula, from an extraterrestrial origin, 1.6 km beneath Wilkes Land, East Antarctica, remain controversial. Here, we use the latest high-resolution gravito-topographic geopotential (SatGravRET 2014) model over Antarctica to offer a plausible confirmation of its existence. SatGravRET 2014 has a spatial resolution between 1 and 10 km at most places and included contemporary space gravimetry and gradiometry data from GRACE and GOCE, and other data including Bedmap 2 bedrock topography. We computed the gravity disturbances, the Marussi tensor of the second derivatives of the disturbing potential, the gravity invariants and their specific ratio, the strike angles and the virtual deformations to quantify the detailed geophysical features for the Wilkes Land anomaly. This set of the gravitational parameters revealed enhanced and more detailed geophysical features on the Wilkes Land Crater than previously possible only with the traditional gravity anomalies. Our findings support prior studies stating that in the Wilkes Land there is a huge impact crater/basin with detectable gravity mascon which is mostly consistent with the characteristics of an impact crater. Web of Science 70 art. no. 135 |
format |
Article in Journal/Newspaper |
author |
Klokočník, Jaroslav Kostelecký, Jan Bezděk, Aleš |
author_facet |
Klokočník, Jaroslav Kostelecký, Jan Bezděk, Aleš |
author_sort |
Klokočník, Jaroslav |
title |
On the detection of the Wilkes Land impact crater |
title_short |
On the detection of the Wilkes Land impact crater |
title_full |
On the detection of the Wilkes Land impact crater |
title_fullStr |
On the detection of the Wilkes Land impact crater |
title_full_unstemmed |
On the detection of the Wilkes Land impact crater |
title_sort |
on the detection of the wilkes land impact crater |
publisher |
Springer |
publishDate |
2018 |
url |
http://hdl.handle.net/10084/131644 https://doi.org/10.1186/s40623-018-0904-7 |
long_lat |
ENVELOPE(120.000,120.000,-69.000,-69.000) |
geographic |
Antarctic East Antarctica Wilkes Land |
geographic_facet |
Antarctic East Antarctica Wilkes Land |
genre |
Antarc* Antarctic Antarctica East Antarctica Wilkes Land |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Wilkes Land |
op_relation |
Earth Planets and Space http://doi.org/10.1186/s40623-018-0904-7 |
op_rights |
© The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. http://creativecommons.org/licenses/by/4.0/ openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1186/s40623-018-0904-7 |
container_title |
Earth, Planets and Space |
container_volume |
70 |
container_issue |
1 |
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1766265191352238080 |