Antarctic Analog for Dilational Bands on Europa
Europa's surface shows signs of extension, which is revealed as lithospheric dilation expressed along ridges, dilational bands and ridged bands. Ridges, the most common tectonic feature on Europa, comprise a central crack flanked by two raised banks a few hundred meters high on each side. Toget...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20150014246 2023-05-15T13:35:23+02:00 Antarctic Analog for Dilational Bands on Europa Brunt, K. M. Hurford, T. A. Unclassified, Unlimited, Publicly available June 27, 2014 application/pdf http://hdl.handle.net/2060/20150014246 unknown Document ID: 20150014246 http://hdl.handle.net/2060/20150014246 Copyright, Distribution as joint owner in the copyright CASI Geophysics GSFC-E-DAA-TN22054 Earth and Planetary Science Letters; 401; 275-283 2014 ftnasantrs 2019-07-21T00:06:16Z Europa's surface shows signs of extension, which is revealed as lithospheric dilation expressed along ridges, dilational bands and ridged bands. Ridges, the most common tectonic feature on Europa, comprise a central crack flanked by two raised banks a few hundred meters high on each side. Together these three classes may represent a continuum of formation. In Tufts' Dilational Model ridge formation is dominated by daily tidal cycling of a crack, which can be superimposed with regional secular dilation. The two sources of dilation can combine to form the various band morphologies observed. New GPS data along a rift on the Ross Ice Shelf, Antarctica is a suitable Earth analog to test the framework of Tufts' Dilational Model. As predicted by Tufts' Dilational Model, tensile failures in the Ross Ice Shelf exhibit secular dilation, upon which a tidal signal can be seen. From this analog we conclude that Tufts' Dilational Model for Europan ridges and bands may be credible and that the secular dilation is most likely from a regional source and not tidally driven. Other/Unknown Material Antarc* Antarctic Antarctica Ice Shelf Ross Ice Shelf NASA Technical Reports Server (NTRS) Antarctic Ross Ice Shelf |
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Open Polar |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
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Geophysics |
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Geophysics Brunt, K. M. Hurford, T. A. Antarctic Analog for Dilational Bands on Europa |
topic_facet |
Geophysics |
description |
Europa's surface shows signs of extension, which is revealed as lithospheric dilation expressed along ridges, dilational bands and ridged bands. Ridges, the most common tectonic feature on Europa, comprise a central crack flanked by two raised banks a few hundred meters high on each side. Together these three classes may represent a continuum of formation. In Tufts' Dilational Model ridge formation is dominated by daily tidal cycling of a crack, which can be superimposed with regional secular dilation. The two sources of dilation can combine to form the various band morphologies observed. New GPS data along a rift on the Ross Ice Shelf, Antarctica is a suitable Earth analog to test the framework of Tufts' Dilational Model. As predicted by Tufts' Dilational Model, tensile failures in the Ross Ice Shelf exhibit secular dilation, upon which a tidal signal can be seen. From this analog we conclude that Tufts' Dilational Model for Europan ridges and bands may be credible and that the secular dilation is most likely from a regional source and not tidally driven. |
format |
Other/Unknown Material |
author |
Brunt, K. M. Hurford, T. A. |
author_facet |
Brunt, K. M. Hurford, T. A. |
author_sort |
Brunt, K. M. |
title |
Antarctic Analog for Dilational Bands on Europa |
title_short |
Antarctic Analog for Dilational Bands on Europa |
title_full |
Antarctic Analog for Dilational Bands on Europa |
title_fullStr |
Antarctic Analog for Dilational Bands on Europa |
title_full_unstemmed |
Antarctic Analog for Dilational Bands on Europa |
title_sort |
antarctic analog for dilational bands on europa |
publishDate |
2014 |
url |
http://hdl.handle.net/2060/20150014246 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic Ross Ice Shelf |
geographic_facet |
Antarctic Ross Ice Shelf |
genre |
Antarc* Antarctic Antarctica Ice Shelf Ross Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelf Ross Ice Shelf |
op_source |
CASI |
op_relation |
Document ID: 20150014246 http://hdl.handle.net/2060/20150014246 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766065106904416256 |