High-resolution airborne gravity imaging over James Ross Island (West Antarctica)
James Ross Island (JRI) exposes a Miocene-Recent alkaline basaltic volcanic complex that developed in a back-arc, east of the northern Antarctic Peninsula. JRI has been the focus of several geological studies because it provides a window on Neogene magmatic processes and paleoenvironments. However,...
Main Authors: | , , , , , , |
---|---|
Other Authors: | , , |
Format: | Book Part |
Language: | unknown |
Published: |
National Academy Press
2007
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/15750/ http://pubs.usgs.gov/of/2007/1047/srp/srp060/of2007-1047srp060.pdf |
id |
ftnerc:oai:nora.nerc.ac.uk:15750 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:15750 2024-02-11T09:56:33+01:00 High-resolution airborne gravity imaging over James Ross Island (West Antarctica) Jordan, T.A. Ferraccioli, F. Jones, P.D. Smellie, J.L. Ghidella, M. Corr, H. Zakrajsek, A.F. Cooper, A.K. Raymond, C.R. ISAES Editorial Team, . 2007 http://nora.nerc.ac.uk/id/eprint/15750/ http://pubs.usgs.gov/of/2007/1047/srp/srp060/of2007-1047srp060.pdf unknown National Academy Press Jordan, T.A. orcid:0000-0003-2780-1986 Ferraccioli, F. orcid:0000-0002-9347-4736 Jones, P.D.; Smellie, J.L.; Ghidella, M.; Corr, H.; Zakrajsek, A.F. 2007 High-resolution airborne gravity imaging over James Ross Island (West Antarctica). In: Cooper, A.K.; Raymond, C.R.; ISAES Editorial Team, ., (eds.) Antarctica: a keystone in a changing world. Online proceedings of the 10th International Symposium on Antarctic Earth Sciences, Santa Barbara, California, August 26 - September 1, 2007. National Academy Press, 4pp. (U.S. Geological Survey Open-File Report, 2007-1047. Short). Earth Sciences Publication - Book Section NonPeerReviewed 2007 ftnerc 2024-01-26T00:03:20Z James Ross Island (JRI) exposes a Miocene-Recent alkaline basaltic volcanic complex that developed in a back-arc, east of the northern Antarctic Peninsula. JRI has been the focus of several geological studies because it provides a window on Neogene magmatic processes and paleoenvironments. However, little is known about its internal structure. New airborne gravity data were collected as part of the first high-resolution aerogeophysical survey flown over the island and reveal a prominent negative Bouguer gravity anomaly over Mt Haddington. This is intriguing as basaltic volcanoes are typically associated with positive Bouguer anomalies, linked to underlying mafic intrusions. The negative Bouguer anomaly may be associated with a hitherto unrecognised low-density sub-surface body, such as a breccia-filled caldera, or a partially molten magma chamber. Citation: T. A. Jordan, F. Ferraccioli, P. C. Jones, J. L. Smellie Book Part Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island West Antarctica Natural Environment Research Council: NERC Open Research Archive Antarctic Antarctic Peninsula Haddington ENVELOPE(-57.733,-57.733,-64.250,-64.250) Ross Island Smellie ENVELOPE(-61.151,-61.151,-62.652,-62.652) West Antarctica |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Jordan, T.A. Ferraccioli, F. Jones, P.D. Smellie, J.L. Ghidella, M. Corr, H. Zakrajsek, A.F. High-resolution airborne gravity imaging over James Ross Island (West Antarctica) |
topic_facet |
Earth Sciences |
description |
James Ross Island (JRI) exposes a Miocene-Recent alkaline basaltic volcanic complex that developed in a back-arc, east of the northern Antarctic Peninsula. JRI has been the focus of several geological studies because it provides a window on Neogene magmatic processes and paleoenvironments. However, little is known about its internal structure. New airborne gravity data were collected as part of the first high-resolution aerogeophysical survey flown over the island and reveal a prominent negative Bouguer gravity anomaly over Mt Haddington. This is intriguing as basaltic volcanoes are typically associated with positive Bouguer anomalies, linked to underlying mafic intrusions. The negative Bouguer anomaly may be associated with a hitherto unrecognised low-density sub-surface body, such as a breccia-filled caldera, or a partially molten magma chamber. Citation: T. A. Jordan, F. Ferraccioli, P. C. Jones, J. L. Smellie |
author2 |
Cooper, A.K. Raymond, C.R. ISAES Editorial Team, . |
format |
Book Part |
author |
Jordan, T.A. Ferraccioli, F. Jones, P.D. Smellie, J.L. Ghidella, M. Corr, H. Zakrajsek, A.F. |
author_facet |
Jordan, T.A. Ferraccioli, F. Jones, P.D. Smellie, J.L. Ghidella, M. Corr, H. Zakrajsek, A.F. |
author_sort |
Jordan, T.A. |
title |
High-resolution airborne gravity imaging over James Ross Island (West Antarctica) |
title_short |
High-resolution airborne gravity imaging over James Ross Island (West Antarctica) |
title_full |
High-resolution airborne gravity imaging over James Ross Island (West Antarctica) |
title_fullStr |
High-resolution airborne gravity imaging over James Ross Island (West Antarctica) |
title_full_unstemmed |
High-resolution airborne gravity imaging over James Ross Island (West Antarctica) |
title_sort |
high-resolution airborne gravity imaging over james ross island (west antarctica) |
publisher |
National Academy Press |
publishDate |
2007 |
url |
http://nora.nerc.ac.uk/id/eprint/15750/ http://pubs.usgs.gov/of/2007/1047/srp/srp060/of2007-1047srp060.pdf |
long_lat |
ENVELOPE(-57.733,-57.733,-64.250,-64.250) ENVELOPE(-61.151,-61.151,-62.652,-62.652) |
geographic |
Antarctic Antarctic Peninsula Haddington Ross Island Smellie West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula Haddington Ross Island Smellie West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica James Ross Island Ross Island West Antarctica |
op_relation |
Jordan, T.A. orcid:0000-0003-2780-1986 Ferraccioli, F. orcid:0000-0002-9347-4736 Jones, P.D.; Smellie, J.L.; Ghidella, M.; Corr, H.; Zakrajsek, A.F. 2007 High-resolution airborne gravity imaging over James Ross Island (West Antarctica). In: Cooper, A.K.; Raymond, C.R.; ISAES Editorial Team, ., (eds.) Antarctica: a keystone in a changing world. Online proceedings of the 10th International Symposium on Antarctic Earth Sciences, Santa Barbara, California, August 26 - September 1, 2007. National Academy Press, 4pp. (U.S. Geological Survey Open-File Report, 2007-1047. Short). |
_version_ |
1790604044000034816 |