New aerogeophysical study of the Eurasia Basin and Lomonosov Ridge: Implications for basin development
In 1998 and 1999, new aerogeophysical surveys of the Arctic Ocean's Eurasia Basin produced the first collocated gravity and magnetic measurements over the western half of the basin. These data increase the density and extend the coverage of the U.S. Navy acromagnetic data from the 1970s. The ne...
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ftdtupubl:oai:pure.atira.dk:publications/f40ef461-b286-492c-92e8-dd04666a9988 2024-06-23T07:49:55+00:00 New aerogeophysical study of the Eurasia Basin and Lomonosov Ridge: Implications for basin development Brozena, J.M. Childers, V.A. Lawver, L.A. Gahagan, L.M. Forsberg, René Faleide, J.I. Eldholm, O. 2003 https://orbit.dtu.dk/en/publications/f40ef461-b286-492c-92e8-dd04666a9988 eng eng https://orbit.dtu.dk/en/publications/f40ef461-b286-492c-92e8-dd04666a9988 info:eu-repo/semantics/restrictedAccess Brozena , J M , Childers , V A , Lawver , L A , Gahagan , L M , Forsberg , R , Faleide , J I & Eldholm , O 2003 , ' New aerogeophysical study of the Eurasia Basin and Lomonosov Ridge: Implications for basin development ' , Geology , vol. 31 , no. 9 , pp. 825-828 . Eurasia Basin marine magnetic anomalies aerogeophysics Arctic Ocean Arctic plate motion /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2003 ftdtupubl 2024-06-11T14:24:37Z In 1998 and 1999, new aerogeophysical surveys of the Arctic Ocean's Eurasia Basin produced the first collocated gravity and magnetic measurements over the western half of the basin. These data increase the density and extend the coverage of the U.S. Navy acromagnetic data from the 1970s. The new data reveal prominent bends in the isochrons that provide solid geometrical constraints for plate reconstructions. Tentative identification of anomaly 25 in the Eurasia Basin links early basin opening to spreading in the Labrador Sea before the locus of spreading in the North Atlantic shifted to the Norwegian-Greenland Sea. With the opening of the Labrador Sea, Greenland began similar to200 km of northward movement relative to North America and eventually collided with Svalbard, Ellesmere Island, and the nascent Eurasia ocean basin. Both gravity and magnetic data sets reconstructed to times prior to chron 13 show a prominent linear anomaly oriented orthogonal to the spreading center and immediately north of the Yermak Plateau and Morris Jesup Rise. This anomaly may mark the locus of shortening and possibly subduction as Greenland collided with the nascent Eurasia Basin and impinged upon the southern Gakkel Ridge. This collision may have contributed to vollcanism on the Morris Jesup Rise. By chron 13, Greenland had ended its northward motion and had become fixed to North America, and the plateau north of Greenland had rifted apart to become the Morris Jesup Rise and the Yermak Plateau. Article in Journal/Newspaper Arctic Arctic Ocean Ellesmere Island Greenland Greenland Sea Labrador Sea Lomonosov Ridge North Atlantic Svalbard Yermak plateau Technical University of Denmark: DTU Orbit Arctic Arctic Ocean Svalbard Ellesmere Island Greenland Yermak Plateau ENVELOPE(5.000,5.000,81.250,81.250) Gakkel Ridge ENVELOPE(90.000,90.000,87.000,87.000) Morris Jesup Rise ENVELOPE(-20.000,-20.000,83.750,83.750) Eurasia Basin ENVELOPE(80.000,80.000,87.000,87.000) |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Eurasia Basin marine magnetic anomalies aerogeophysics Arctic Ocean Arctic plate motion /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Eurasia Basin marine magnetic anomalies aerogeophysics Arctic Ocean Arctic plate motion /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Brozena, J.M. Childers, V.A. Lawver, L.A. Gahagan, L.M. Forsberg, René Faleide, J.I. Eldholm, O. New aerogeophysical study of the Eurasia Basin and Lomonosov Ridge: Implications for basin development |
topic_facet |
Eurasia Basin marine magnetic anomalies aerogeophysics Arctic Ocean Arctic plate motion /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
In 1998 and 1999, new aerogeophysical surveys of the Arctic Ocean's Eurasia Basin produced the first collocated gravity and magnetic measurements over the western half of the basin. These data increase the density and extend the coverage of the U.S. Navy acromagnetic data from the 1970s. The new data reveal prominent bends in the isochrons that provide solid geometrical constraints for plate reconstructions. Tentative identification of anomaly 25 in the Eurasia Basin links early basin opening to spreading in the Labrador Sea before the locus of spreading in the North Atlantic shifted to the Norwegian-Greenland Sea. With the opening of the Labrador Sea, Greenland began similar to200 km of northward movement relative to North America and eventually collided with Svalbard, Ellesmere Island, and the nascent Eurasia ocean basin. Both gravity and magnetic data sets reconstructed to times prior to chron 13 show a prominent linear anomaly oriented orthogonal to the spreading center and immediately north of the Yermak Plateau and Morris Jesup Rise. This anomaly may mark the locus of shortening and possibly subduction as Greenland collided with the nascent Eurasia Basin and impinged upon the southern Gakkel Ridge. This collision may have contributed to vollcanism on the Morris Jesup Rise. By chron 13, Greenland had ended its northward motion and had become fixed to North America, and the plateau north of Greenland had rifted apart to become the Morris Jesup Rise and the Yermak Plateau. |
format |
Article in Journal/Newspaper |
author |
Brozena, J.M. Childers, V.A. Lawver, L.A. Gahagan, L.M. Forsberg, René Faleide, J.I. Eldholm, O. |
author_facet |
Brozena, J.M. Childers, V.A. Lawver, L.A. Gahagan, L.M. Forsberg, René Faleide, J.I. Eldholm, O. |
author_sort |
Brozena, J.M. |
title |
New aerogeophysical study of the Eurasia Basin and Lomonosov Ridge: Implications for basin development |
title_short |
New aerogeophysical study of the Eurasia Basin and Lomonosov Ridge: Implications for basin development |
title_full |
New aerogeophysical study of the Eurasia Basin and Lomonosov Ridge: Implications for basin development |
title_fullStr |
New aerogeophysical study of the Eurasia Basin and Lomonosov Ridge: Implications for basin development |
title_full_unstemmed |
New aerogeophysical study of the Eurasia Basin and Lomonosov Ridge: Implications for basin development |
title_sort |
new aerogeophysical study of the eurasia basin and lomonosov ridge: implications for basin development |
publishDate |
2003 |
url |
https://orbit.dtu.dk/en/publications/f40ef461-b286-492c-92e8-dd04666a9988 |
long_lat |
ENVELOPE(5.000,5.000,81.250,81.250) ENVELOPE(90.000,90.000,87.000,87.000) ENVELOPE(-20.000,-20.000,83.750,83.750) ENVELOPE(80.000,80.000,87.000,87.000) |
geographic |
Arctic Arctic Ocean Svalbard Ellesmere Island Greenland Yermak Plateau Gakkel Ridge Morris Jesup Rise Eurasia Basin |
geographic_facet |
Arctic Arctic Ocean Svalbard Ellesmere Island Greenland Yermak Plateau Gakkel Ridge Morris Jesup Rise Eurasia Basin |
genre |
Arctic Arctic Ocean Ellesmere Island Greenland Greenland Sea Labrador Sea Lomonosov Ridge North Atlantic Svalbard Yermak plateau |
genre_facet |
Arctic Arctic Ocean Ellesmere Island Greenland Greenland Sea Labrador Sea Lomonosov Ridge North Atlantic Svalbard Yermak plateau |
op_source |
Brozena , J M , Childers , V A , Lawver , L A , Gahagan , L M , Forsberg , R , Faleide , J I & Eldholm , O 2003 , ' New aerogeophysical study of the Eurasia Basin and Lomonosov Ridge: Implications for basin development ' , Geology , vol. 31 , no. 9 , pp. 825-828 . |
op_relation |
https://orbit.dtu.dk/en/publications/f40ef461-b286-492c-92e8-dd04666a9988 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1802640640382599168 |