Tectonic History of the Arctic Basins: Partial Solutions and Unsolved Mysteries (Chapter 3)

As yet inaccessible to deep-sea drilling and shipborne surveying, the ice-locked Arctic Basin has been slow to give up details of crustal genesis and later modification. Extensive geophysical surveying both in the Arctic Basin and the North Atlantic confirms sea-floor spreading as the only probable...

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Bibliographic Details
Main Authors: Vogt,Peter R., Avery,Otis E.
Other Authors: NAVAL OCEANOGRAPHIC OFFICE WASHINGTON D C
Format: Text
Language:English
Published: 1974
Subjects:
Geology
Geochemistry and Mineralogy
*ARCTIC REGIONS
*TECTONICS
GEOMAGNETISM
BATHYMETRY
SEISMIC DATA
OCEAN BOTTOM SAMPLING
NORTH ATLANTIC OCEAN
OCEAN BOTTOM TOPOGRAPHY
SEDIMENTS
OCEANIC CRUST
MAGNETIC ANOMALIES
ICELAND
ARCTIC OCEAN
*Ocean bottom spreading
Lomonosov Ridge
Plate tectonics
Labrador Sea
Reykjanes Ridge
MidAtlantic Ridge
Arctic
Arctic Ocean
Reykjanes
Eurasia Basin
Arctic Basin
Iceland
North Atlantic
Online Access:http://www.dtic.mil/docs/citations/ADA005411
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA005411
Description
Summary:As yet inaccessible to deep-sea drilling and shipborne surveying, the ice-locked Arctic Basin has been slow to give up details of crustal genesis and later modification. Extensive geophysical surveying both in the Arctic Basin and the North Atlantic confirms sea-floor spreading as the only probable mode of crustal genesis for the Eurasia Basin. Magnetic anomalies, although less clear than elsewhere suggest spreading rates of approximately 0.5 to 1 cm/yr since 10 m.y.b.p.; the basin was born perhaps 60 m.y.b.p., with the separation of the Lomonosov Ridge from the Eurasian margin. Reprint from Marine Geology and Oceanography of the Arctic Seas.

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