OCEANOGRAPHIC CRUISE SUMMARY RECONNAISSANCE SURVEY OF NORTHERN MID-OCEANIC RIDGE.

A joint U.S. Naval Oceanographic Office and U.S. Coast Guard geological, geophysical survey was conducted during the summer months of 1966 on that portion of the mid-oceanic ridge that lies north of Iceland. Preliminary analysis of the data delineates the general form, magnetic signature, and size o...

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Bibliographic Details
Main Author: Johnson, G. Leonard
Other Authors: NAVAL OCEANOGRAPHIC OFFICE NSTL STATION MS
Format: Text
Language:English
Published: 1967
Subjects:
Physical and Dynamic Oceanography
(*OCEAN BOTTOM TOPOGRAPHY
ATLANTIC OCEAN)
MARINE GEOPHYSICS
OCEANOGRAPHIC DATA
GEOMAGNETISM
BATHYTHERMOGRAPH DATA
OCEANOGRAPHIC SHIPS
DEEP WATER
MAPS
FAULTS(MARINE)
NORTH ATLANTIC OCEAN
RIDGES(MARINE)
Greenland
Jan Mayen
Jan Mayen Fracture Zone
Iceland
North Atlantic
Online Access:http://www.dtic.mil/docs/citations/AD0817251
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0817251
Description
Summary:A joint U.S. Naval Oceanographic Office and U.S. Coast Guard geological, geophysical survey was conducted during the summer months of 1966 on that portion of the mid-oceanic ridge that lies north of Iceland. Preliminary analysis of the data delineates the general form, magnetic signature, and size of the mid-oceanic ridge and several small related fracture zones. It was found that the mid-oceanic ridge between Iceland and Jan Mayen has an average width of about 60 miles and a poorly developed rift valley. East of Jan Mayen, the mid-oceanic ridge is well developed with a rift valley and flank provinces. It had been previously thought that the Jan Mayen Fracture Zone struck east-west in the region east of 5 degrees W. and 71 degrees N. Instead, it was found to be an en echelon feature striking northwest-southeast. This fracture zone extends from the base of the Greenland continental slope to the Norwegian coast. (Author)

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