A glacial geomorphological map of the southernmost ice lobes of Patagonia:the Bahía Inútil – San Sebastián, Magellan, Otway, Skyring and Río Gallegos lobes
This paper presents a glacial geomorphological map of the landforms created by five large ice lobes that extended eastwards from the southernmost reaches of the Patagonian Ice Sheet during the Quaternary period. The study is focussed on Tierra del Fuego, but also updates previous mapping of the Skyr...
Published in: | Journal of Maps |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2014
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Online Access: | https://doi.org/10.1080/17445647.2014.890134 https://researchportal.port.ac.uk/portal/en/publications/a-glacial-geomorphological-map-of-the-southernmost-ice-lobes-of-patagonia(19d64185-c766-4d42-bdfa-00e5e00efbcd).html https://researchportal.port.ac.uk/ws/files/1524369/Darvill_et_al._2014_JoM_post_review_.pdf http://www.tandfonline.com/doi/abs/10.1080/17445647.2014.890134 |
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ftunivportsmpubl:oai:researchportal.port.ac.uk:publications/19d64185-c766-4d42-bdfa-00e5e00efbcd 2023-05-15T16:41:19+02:00 A glacial geomorphological map of the southernmost ice lobes of Patagonia:the Bahía Inútil – San Sebastián, Magellan, Otway, Skyring and Río Gallegos lobes Darvill, Christopher M. Stokes, Chris R. Bentley, Michael J. Lovell, Harold 2014-07-03 application/pdf https://doi.org/10.1080/17445647.2014.890134 https://researchportal.port.ac.uk/portal/en/publications/a-glacial-geomorphological-map-of-the-southernmost-ice-lobes-of-patagonia(19d64185-c766-4d42-bdfa-00e5e00efbcd).html https://researchportal.port.ac.uk/ws/files/1524369/Darvill_et_al._2014_JoM_post_review_.pdf http://www.tandfonline.com/doi/abs/10.1080/17445647.2014.890134 eng eng info:eu-repo/semantics/openAccess Darvill , C M , Stokes , C R , Bentley , M J & Lovell , H 2014 , ' A glacial geomorphological map of the southernmost ice lobes of Patagonia : the Bahía Inútil – San Sebastián, Magellan, Otway, Skyring and Río Gallegos lobes ' Journal of Maps , vol 10 , no. 3 , pp. 500-520 . DOI:10.1080/17445647.2014.890134 /dk/atira/pure/core/subjects/geography Geography article 2014 ftunivportsmpubl https://doi.org/10.1080/17445647.2014.890134 2017-09-28T19:33:14Z This paper presents a glacial geomorphological map of the landforms created by five large ice lobes that extended eastwards from the southernmost reaches of the Patagonian Ice Sheet during the Quaternary period. The study is focussed on Tierra del Fuego, but also updates previous mapping of the Skyring and Otway lobes, and the resulting level of detail and extent is a significant advance on previous work in the region. The map has been created as the necessary precursor for an improved understanding of the glacial history of the region, and to underpin a programme of dating glacial limits in the region. It was produced using Landsat ETM+ and ASTER satellite imagery and vertical aerial photography, supplemented by Google Earth™ imagery and field-checking. Eleven landform types were mapped: moraine ridges, subdued moraine topography, kettle-kame topography, glacial lineations, irregular and regular hummocky terrain, irregular dissected ridges, eskers, meltwater channels, former shorelines and outwash plains. The map reveals three important characteristics of the glacial geomorphology. First, the geomorphic systems are largely dominated by landforms associated with meltwater (channels, outwash plains and kettle-kame topography). Second, there is a difference in the nature of landforms associated with the northern three ice lobes, where limits are generally marked by numerous clear moraine ridges, compared to those to the south, where hummocky terrain and drift limits prevail. Finally, cross-cutting landforms offer evidence of multiple advances, in places, which has implications for the timing of limit deposition, and thus for the design and interpretation of a dating programme. Article in Journal/Newspaper Ice Sheet Tierra del Fuego University of Portsmouth: Portsmouth Research Portal Gallegos ENVELOPE(-67.150,-67.150,-68.133,-68.133) Inútil ENVELOPE(-60.783,-60.783,-64.050,-64.050) bahía Inútil ENVELOPE(-62.917,-62.917,-64.883,-64.883) Journal of Maps 10 3 500 520 |
institution |
Open Polar |
collection |
University of Portsmouth: Portsmouth Research Portal |
op_collection_id |
ftunivportsmpubl |
language |
English |
topic |
/dk/atira/pure/core/subjects/geography Geography |
spellingShingle |
/dk/atira/pure/core/subjects/geography Geography Darvill, Christopher M. Stokes, Chris R. Bentley, Michael J. Lovell, Harold A glacial geomorphological map of the southernmost ice lobes of Patagonia:the Bahía Inútil – San Sebastián, Magellan, Otway, Skyring and Río Gallegos lobes |
topic_facet |
/dk/atira/pure/core/subjects/geography Geography |
description |
This paper presents a glacial geomorphological map of the landforms created by five large ice lobes that extended eastwards from the southernmost reaches of the Patagonian Ice Sheet during the Quaternary period. The study is focussed on Tierra del Fuego, but also updates previous mapping of the Skyring and Otway lobes, and the resulting level of detail and extent is a significant advance on previous work in the region. The map has been created as the necessary precursor for an improved understanding of the glacial history of the region, and to underpin a programme of dating glacial limits in the region. It was produced using Landsat ETM+ and ASTER satellite imagery and vertical aerial photography, supplemented by Google Earth™ imagery and field-checking. Eleven landform types were mapped: moraine ridges, subdued moraine topography, kettle-kame topography, glacial lineations, irregular and regular hummocky terrain, irregular dissected ridges, eskers, meltwater channels, former shorelines and outwash plains. The map reveals three important characteristics of the glacial geomorphology. First, the geomorphic systems are largely dominated by landforms associated with meltwater (channels, outwash plains and kettle-kame topography). Second, there is a difference in the nature of landforms associated with the northern three ice lobes, where limits are generally marked by numerous clear moraine ridges, compared to those to the south, where hummocky terrain and drift limits prevail. Finally, cross-cutting landforms offer evidence of multiple advances, in places, which has implications for the timing of limit deposition, and thus for the design and interpretation of a dating programme. |
format |
Article in Journal/Newspaper |
author |
Darvill, Christopher M. Stokes, Chris R. Bentley, Michael J. Lovell, Harold |
author_facet |
Darvill, Christopher M. Stokes, Chris R. Bentley, Michael J. Lovell, Harold |
author_sort |
Darvill, Christopher M. |
title |
A glacial geomorphological map of the southernmost ice lobes of Patagonia:the Bahía Inútil – San Sebastián, Magellan, Otway, Skyring and Río Gallegos lobes |
title_short |
A glacial geomorphological map of the southernmost ice lobes of Patagonia:the Bahía Inútil – San Sebastián, Magellan, Otway, Skyring and Río Gallegos lobes |
title_full |
A glacial geomorphological map of the southernmost ice lobes of Patagonia:the Bahía Inútil – San Sebastián, Magellan, Otway, Skyring and Río Gallegos lobes |
title_fullStr |
A glacial geomorphological map of the southernmost ice lobes of Patagonia:the Bahía Inútil – San Sebastián, Magellan, Otway, Skyring and Río Gallegos lobes |
title_full_unstemmed |
A glacial geomorphological map of the southernmost ice lobes of Patagonia:the Bahía Inútil – San Sebastián, Magellan, Otway, Skyring and Río Gallegos lobes |
title_sort |
glacial geomorphological map of the southernmost ice lobes of patagonia:the bahía inútil – san sebastián, magellan, otway, skyring and río gallegos lobes |
publishDate |
2014 |
url |
https://doi.org/10.1080/17445647.2014.890134 https://researchportal.port.ac.uk/portal/en/publications/a-glacial-geomorphological-map-of-the-southernmost-ice-lobes-of-patagonia(19d64185-c766-4d42-bdfa-00e5e00efbcd).html https://researchportal.port.ac.uk/ws/files/1524369/Darvill_et_al._2014_JoM_post_review_.pdf http://www.tandfonline.com/doi/abs/10.1080/17445647.2014.890134 |
long_lat |
ENVELOPE(-67.150,-67.150,-68.133,-68.133) ENVELOPE(-60.783,-60.783,-64.050,-64.050) ENVELOPE(-62.917,-62.917,-64.883,-64.883) |
geographic |
Gallegos Inútil bahía Inútil |
geographic_facet |
Gallegos Inútil bahía Inútil |
genre |
Ice Sheet Tierra del Fuego |
genre_facet |
Ice Sheet Tierra del Fuego |
op_source |
Darvill , C M , Stokes , C R , Bentley , M J & Lovell , H 2014 , ' A glacial geomorphological map of the southernmost ice lobes of Patagonia : the Bahía Inútil – San Sebastián, Magellan, Otway, Skyring and Río Gallegos lobes ' Journal of Maps , vol 10 , no. 3 , pp. 500-520 . DOI:10.1080/17445647.2014.890134 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1080/17445647.2014.890134 |
container_title |
Journal of Maps |
container_volume |
10 |
container_issue |
3 |
container_start_page |
500 |
op_container_end_page |
520 |
_version_ |
1766031748775280640 |