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

Abstract

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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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1977
Accession Number
ADA038115

Entities

People

  • J. R. Heirtzler
  • P. T. Taylor
  • R. D. Ballard
  • R. L. Houghton

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Bottom Waters
  • Fish
  • Geography
  • Geology
  • Igneous Rocks
  • Military Research
  • New England
  • New York
  • North America
  • Oceans
  • Ridges
  • Rift Valleys
  • Seabed
  • Shallow Water
  • Terrain
  • Topography
  • United States

Readers

  • Geotechnical Engineering.
  • Oceanography.