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- Isostatic state and density structure from surface to depth of the lithosphere below the Norwegian continental margin
Isostatic state and density structure from surface to depth of the lithosphere below the Norwegian continental margin
Auteur :
Ebbing
Jörg,
Olesen
Odleiv,
Lauritsen
Torleif,
...[et al.]
Date de publication : 01/06/2010
Type : Exposé
Thème : Lithosphère
Couverture :
Norvège
URL Article :
http://www.geologi.no/data/f/0/20/33/6_2401_0/Ebbing_iMAGINE2010.pdfURL Source :
http://www.geologi.no 
Télécharger le document :
(9,30 MB) isostatic_state_density_structure_surface_depth_lithosphere.pdfRésumé/Sommaire :
Summary
Top basement and Moho geometry reflect the tectonic evolution of the Northeast Atlantic margin
– Gravity and magnetic are especially helpful to study their geometry
– Isostasy is important to consider to validate the crustal geometry
Onshore-offshore
– late-Caledonian detachments representing the collapse of the orogene can be linked by their magnetic signature below the margin
– high-density lower crust is a feature to the east of the Scandes and at the outer margin: LCB
– LCB: multiple origin suggested
• Magmatic origin at outermost margin
• Serpentinisation in central part of margin
• Eclogite below central Fennoscandia.
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