The 1974 ALVIN Dives on Corner Rise and New England Seamounts.

Reconnaissance dives on seven of the New England Seamounts showed them to be rugged igneous features with pillow and massive basaltic rock exposures the dominent bottom type. A unique wall-like or radial dike was observed on two seamounts. Glacial erratics are rare on the east end of the chain but n...

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Bibliographic Details
Main Authors: Heirtzler,J R, Taylor,P T, Ballard,R D, Houghton,R L
Other Authors: WOODS HOLE OCEANOGRAPHIC INSTITUTION MASS
Format: Text
Language:English
Published: 1977
Subjects:
Geology
Geochemistry and Mineralogy
*MARINE GEOLOGY
*SEAMOUNTS
BASALT
MARINE BIOLOGY
NORTH ATLANTIC OCEAN
SEDIMENTS
MANNED
OCEAN BOTTOM
SUBMERSIBLES
IGNEOUS ROCK
Manned submersibles
New England seamounts
ALVIN
WUNR083004
North Atlantic
Online Access:http://www.dtic.mil/docs/citations/ADA038115
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA038115
Description
Summary:Reconnaissance dives on seven of the New England Seamounts showed them to be rugged igneous features with pillow and massive basaltic rock exposures the dominent bottom type. A unique wall-like or radial dike was observed on two seamounts. Glacial erratics are rare on the east end of the chain but numerous on the west end. There are small bottom water currents that transport sediment sometimes causing sediment waves. There is a bottom biological population that distinctly varied from the eastern to the western seamounts. Mytilus was found to have a 300 meter shallow water coral cap rising above its volcanic base at 3,000 meters. None of the other seamounts visited on this cruise gave evidence of subsidence. (Author)

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