Evolution of the East Antarctic ice sheet : a record from the seismic stratigraphy of the C-19 site, Ross Sea, Antarctica
Nearly 1000 km of high-resolution single-channel seismic (SCS) reflection data and 1000 km of multi-channel seismic (MCS) data were acquired in the Ross Sea, Antarctica where a large iceberg, C-19, calved from the Ross Ice Shelf in May of 2002. This data set offers a unique opportunity to use a clos...
Main Author: | |
---|---|
Other Authors: | |
Format: | Thesis |
Language: | English |
Published: |
University of North Carolina at Chapel Hill. Library
2009
|
Subjects: | |
Online Access: | http://dc.lib.unc.edu/u?/etd,2222 |
id |
ftuninorthcardc:oai:dc.lib.unc.edu:etd/2222 |
---|---|
record_format |
openpolar |
spelling |
ftuninorthcardc:oai:dc.lib.unc.edu:etd/2222 2023-05-15T13:56:40+02:00 Evolution of the East Antarctic ice sheet : a record from the seismic stratigraphy of the C-19 site, Ross Sea, Antarctica Viator, Howard Preston. Bartek, Louis Robert.; 2009-05 10.08 MB http://dc.lib.unc.edu/u?/etd,2222 English eng University of North Carolina at Chapel Hill. Library University of North Carolina at Chapel Hill http://dc.lib.unc.edu/u?/etd,2222 Author The author has granted the University of North Carolina at Chapel Hill a limited, non-exclusive right to make this publication available to the public. The author retains all other rights. Dissertations Thesis 2009 ftuninorthcardc 2010-05-21T20:05:41Z Nearly 1000 km of high-resolution single-channel seismic (SCS) reflection data and 1000 km of multi-channel seismic (MCS) data were acquired in the Ross Sea, Antarctica where a large iceberg, C-19, calved from the Ross Ice Shelf in May of 2002. This data set offers a unique opportunity to use a closely spaced grid of high-resolution seismic profiles to examine the glacial history of the continental shelf in an up-dip location, where older strata are closer to the surface. Two major grounding events are evident in the stratigraphic record; the first one representing the initial advance of ice onto the continental shelf during the early Miocene. During the Oligocene, prior to the onset of widespread glaciation from the East Antarctic Ice Shelf on the continental shelf, this area experienced multiple cycles (at least 10) of ice sheet advance/retreat representing an ice sheet that is approaching but not reaching the C-19 site. Thesis Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Iceberg* Ross Ice Shelf Ross Sea University of North Carolina: UNC Digital Collections Antarctic Ross Sea East Antarctic Ice Sheet Ross Ice Shelf |
institution |
Open Polar |
collection |
University of North Carolina: UNC Digital Collections |
op_collection_id |
ftuninorthcardc |
language |
English |
description |
Nearly 1000 km of high-resolution single-channel seismic (SCS) reflection data and 1000 km of multi-channel seismic (MCS) data were acquired in the Ross Sea, Antarctica where a large iceberg, C-19, calved from the Ross Ice Shelf in May of 2002. This data set offers a unique opportunity to use a closely spaced grid of high-resolution seismic profiles to examine the glacial history of the continental shelf in an up-dip location, where older strata are closer to the surface. Two major grounding events are evident in the stratigraphic record; the first one representing the initial advance of ice onto the continental shelf during the early Miocene. During the Oligocene, prior to the onset of widespread glaciation from the East Antarctic Ice Shelf on the continental shelf, this area experienced multiple cycles (at least 10) of ice sheet advance/retreat representing an ice sheet that is approaching but not reaching the C-19 site. |
author2 |
Bartek, Louis Robert.; |
format |
Thesis |
author |
Viator, Howard Preston. |
spellingShingle |
Viator, Howard Preston. Evolution of the East Antarctic ice sheet : a record from the seismic stratigraphy of the C-19 site, Ross Sea, Antarctica |
author_facet |
Viator, Howard Preston. |
author_sort |
Viator, Howard Preston. |
title |
Evolution of the East Antarctic ice sheet : a record from the seismic stratigraphy of the C-19 site, Ross Sea, Antarctica |
title_short |
Evolution of the East Antarctic ice sheet : a record from the seismic stratigraphy of the C-19 site, Ross Sea, Antarctica |
title_full |
Evolution of the East Antarctic ice sheet : a record from the seismic stratigraphy of the C-19 site, Ross Sea, Antarctica |
title_fullStr |
Evolution of the East Antarctic ice sheet : a record from the seismic stratigraphy of the C-19 site, Ross Sea, Antarctica |
title_full_unstemmed |
Evolution of the East Antarctic ice sheet : a record from the seismic stratigraphy of the C-19 site, Ross Sea, Antarctica |
title_sort |
evolution of the east antarctic ice sheet : a record from the seismic stratigraphy of the c-19 site, ross sea, antarctica |
publisher |
University of North Carolina at Chapel Hill. Library |
publishDate |
2009 |
url |
http://dc.lib.unc.edu/u?/etd,2222 |
geographic |
Antarctic Ross Sea East Antarctic Ice Sheet Ross Ice Shelf |
geographic_facet |
Antarctic Ross Sea East Antarctic Ice Sheet Ross Ice Shelf |
genre |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Iceberg* Ross Ice Shelf Ross Sea |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Iceberg* Ross Ice Shelf Ross Sea |
op_relation |
http://dc.lib.unc.edu/u?/etd,2222 |
op_rights |
Author The author has granted the University of North Carolina at Chapel Hill a limited, non-exclusive right to make this publication available to the public. The author retains all other rights. |
_version_ |
1766264242231574528 |