The Cape Purvis volcano, Dundee Island (northern Antarctic Peninsula): late Pleistocene age, eruptive processes and implications for a glacial palaeoenvironment
Cape Purvis is a conspicuous promontory on southern Dundee Island. It forms a prominent mesa that contrasts with the smooth, shield-like (snow-covered) topography of the remainder of the island. The promontory is composed of fresh alkaline basaltic (hawaiite) volcanic rocks compositionally similar t...
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ftnerc:oai:nora.nerc.ac.uk:126 2024-06-09T07:40:11+00:00 The Cape Purvis volcano, Dundee Island (northern Antarctic Peninsula): late Pleistocene age, eruptive processes and implications for a glacial palaeoenvironment Smellie, J.L. McIntosh, W.C. Esser, R. Fretwell, P.T. 2006 http://nora.nerc.ac.uk/id/eprint/126/ https://doi.org/10.1017/S0954102006000447 unknown Cambridge University Press Smellie, J.L.; McIntosh, W.C.; Esser, R.; Fretwell, P.T. orcid:0000-0002-1988-5844 . 2006 The Cape Purvis volcano, Dundee Island (northern Antarctic Peninsula): late Pleistocene age, eruptive processes and implications for a glacial palaeoenvironment. Antarctic Science, 18 (3). 399-408. https://doi.org/10.1017/S0954102006000447 <https://doi.org/10.1017/S0954102006000447> Earth Sciences Publication - Article PeerReviewed 2006 ftnerc https://doi.org/10.1017/S0954102006000447 2024-05-15T08:39:04Z Cape Purvis is a conspicuous promontory on southern Dundee Island. It forms a prominent mesa that contrasts with the smooth, shield-like (snow-covered) topography of the remainder of the island. The promontory is composed of fresh alkaline basaltic (hawaiite) volcanic rocks compositionally similar to younger lavas on Paulet Island 5 km to the east. The outcrop is one of the youngest and northernmost satellite centres of the James Ross Island Volcanic Group. 40Ar/39Ar isotopic dating indicates that the Cape Purvis volcano is 132 ± 19 ka in age. The examined sequence probably formed as a lava-fed delta during a subglacial eruption late in the glacial period corresponding to Isotope Stage 6, when the ice sheet surface elevation was 300–400 m higher than at present. A remarkable unidirectional age progression is now evident, from volcanic centres in Prince Gustav Channel (c. 2.0–1.6 Ma), through Tabarin Peninsula (1.69–c. 1 Ma) to Cape Purvis and Paulet islands (132–few ka). The age variations are tentatively ascribed to construction of progressively younger volcanic centres at the leading edge of an easterly-opening deep fault system, although the origins of the postulated fault system are unclear. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Dundee Island Ice Sheet James Ross Island Paulet Island Ross Island Natural Environment Research Council: NERC Open Research Archive Antarctic Antarctic Peninsula Cape Purvis ENVELOPE(-37.168,-37.168,-54.099,-54.099) Dundee ENVELOPE(-55.966,-55.966,-63.483,-63.483) Dundee Island ENVELOPE(-55.967,-55.967,-63.483,-63.483) Paulet ENVELOPE(-55.867,-55.867,-63.567,-63.567) Paulet Island ENVELOPE(-55.788,-55.788,-63.580,-63.580) Prince Gustav Channel ENVELOPE(-58.250,-58.250,-63.833,-63.833) Purvis ENVELOPE(-56.083,-56.083,-63.617,-63.617) Ross Island Tabarin peninsula ENVELOPE(-57.000,-57.000,-63.533,-63.533) Antarctic Science 18 3 399 408 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Smellie, J.L. McIntosh, W.C. Esser, R. Fretwell, P.T. The Cape Purvis volcano, Dundee Island (northern Antarctic Peninsula): late Pleistocene age, eruptive processes and implications for a glacial palaeoenvironment |
topic_facet |
Earth Sciences |
description |
Cape Purvis is a conspicuous promontory on southern Dundee Island. It forms a prominent mesa that contrasts with the smooth, shield-like (snow-covered) topography of the remainder of the island. The promontory is composed of fresh alkaline basaltic (hawaiite) volcanic rocks compositionally similar to younger lavas on Paulet Island 5 km to the east. The outcrop is one of the youngest and northernmost satellite centres of the James Ross Island Volcanic Group. 40Ar/39Ar isotopic dating indicates that the Cape Purvis volcano is 132 ± 19 ka in age. The examined sequence probably formed as a lava-fed delta during a subglacial eruption late in the glacial period corresponding to Isotope Stage 6, when the ice sheet surface elevation was 300–400 m higher than at present. A remarkable unidirectional age progression is now evident, from volcanic centres in Prince Gustav Channel (c. 2.0–1.6 Ma), through Tabarin Peninsula (1.69–c. 1 Ma) to Cape Purvis and Paulet islands (132–few ka). The age variations are tentatively ascribed to construction of progressively younger volcanic centres at the leading edge of an easterly-opening deep fault system, although the origins of the postulated fault system are unclear. |
format |
Article in Journal/Newspaper |
author |
Smellie, J.L. McIntosh, W.C. Esser, R. Fretwell, P.T. |
author_facet |
Smellie, J.L. McIntosh, W.C. Esser, R. Fretwell, P.T. |
author_sort |
Smellie, J.L. |
title |
The Cape Purvis volcano, Dundee Island (northern Antarctic Peninsula): late Pleistocene age, eruptive processes and implications for a glacial palaeoenvironment |
title_short |
The Cape Purvis volcano, Dundee Island (northern Antarctic Peninsula): late Pleistocene age, eruptive processes and implications for a glacial palaeoenvironment |
title_full |
The Cape Purvis volcano, Dundee Island (northern Antarctic Peninsula): late Pleistocene age, eruptive processes and implications for a glacial palaeoenvironment |
title_fullStr |
The Cape Purvis volcano, Dundee Island (northern Antarctic Peninsula): late Pleistocene age, eruptive processes and implications for a glacial palaeoenvironment |
title_full_unstemmed |
The Cape Purvis volcano, Dundee Island (northern Antarctic Peninsula): late Pleistocene age, eruptive processes and implications for a glacial palaeoenvironment |
title_sort |
cape purvis volcano, dundee island (northern antarctic peninsula): late pleistocene age, eruptive processes and implications for a glacial palaeoenvironment |
publisher |
Cambridge University Press |
publishDate |
2006 |
url |
http://nora.nerc.ac.uk/id/eprint/126/ https://doi.org/10.1017/S0954102006000447 |
long_lat |
ENVELOPE(-37.168,-37.168,-54.099,-54.099) ENVELOPE(-55.966,-55.966,-63.483,-63.483) ENVELOPE(-55.967,-55.967,-63.483,-63.483) ENVELOPE(-55.867,-55.867,-63.567,-63.567) ENVELOPE(-55.788,-55.788,-63.580,-63.580) ENVELOPE(-58.250,-58.250,-63.833,-63.833) ENVELOPE(-56.083,-56.083,-63.617,-63.617) ENVELOPE(-57.000,-57.000,-63.533,-63.533) |
geographic |
Antarctic Antarctic Peninsula Cape Purvis Dundee Dundee Island Paulet Paulet Island Prince Gustav Channel Purvis Ross Island Tabarin peninsula |
geographic_facet |
Antarctic Antarctic Peninsula Cape Purvis Dundee Dundee Island Paulet Paulet Island Prince Gustav Channel Purvis Ross Island Tabarin peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Dundee Island Ice Sheet James Ross Island Paulet Island Ross Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Dundee Island Ice Sheet James Ross Island Paulet Island Ross Island |
op_relation |
Smellie, J.L.; McIntosh, W.C.; Esser, R.; Fretwell, P.T. orcid:0000-0002-1988-5844 . 2006 The Cape Purvis volcano, Dundee Island (northern Antarctic Peninsula): late Pleistocene age, eruptive processes and implications for a glacial palaeoenvironment. Antarctic Science, 18 (3). 399-408. https://doi.org/10.1017/S0954102006000447 <https://doi.org/10.1017/S0954102006000447> |
op_doi |
https://doi.org/10.1017/S0954102006000447 |
container_title |
Antarctic Science |
container_volume |
18 |
container_issue |
3 |
container_start_page |
399 |
op_container_end_page |
408 |
_version_ |
1801383646855168000 |