Structure and Plate Tectonic Evolution of the Marine Arctic as Revealed by Aeromagnetics

Over 400,000 km of low level aeromagnetic data were collected by US Navy research organization over the Arctic Basin and Greenland-Norwegian Sea during the years 1972 to 1978. These data provide new constraints on the crustal structure and tectonic evolution of this vast region. Magnetic anomalies o...

Full description

Bibliographic Details
Main Authors: Vogt, P, Bernero, C, Kovacs, L, Taylor, P
Format: Article in Journal/Newspaper
Language:English
Published: Gauthier-Villars 1981
Subjects:
Arctic
Canada
Chukchi Borderland
Greenland
Norwegian Sea
Arctic Basin
canada basin
Chukchi
Lomonosov Ridge
Online Access:https://archimer.ifremer.fr/doc/00245/35663/34171.pdf
https://archimer.ifremer.fr/doc/00245/35663/
Description
Summary:Over 400,000 km of low level aeromagnetic data were collected by US Navy research organization over the Arctic Basin and Greenland-Norwegian Sea during the years 1972 to 1978. These data provide new constraints on the crustal structure and tectonic evolution of this vast region. Magnetic anomalies over continental fragments (Lomonosov Ridge and Chukchi Borderland) are irregular, with local short-wavelength features indicating relatively shallow basement. Sea-floor spreading between Scandinavia and Greenland commenced about 58 m.y.b.p. during the reversed period preceding anomaly 24. Spreading between the Lomonosov Ridge and Eurasia also began at this time or possibly somewhat earlier. An extinct spreading axis in the Canada Basin is indicated by gravity and magnetic data.

Similar Items