The Shallow Porosity Structure of Shelf Sediments off Humboldt Bay, Northern California: A Towed Electromagnetic Survey.

Abstract

We have completed a towed electromagnetic survey, mapping the electrical resistivity of the seafloor across an area of the Californian continental shelf off Humboldt Bay. Over 120 km of tow lines were completed, measuring resistivity profiles to 20 m depth continuously along track from water depths of 100 m to around 30 m. Our data show a high degree of variability in porosity structure along the shelf and we identify three distinct environments based on the resistivities recorded and the porosities inferred from them.

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Document Details

Document Type
Technical Report
Publication Date
Mar 18, 1997
Accession Number
ADA323095

Entities

People

  • Robert L. Evans

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • California
  • Continental Shelves
  • Environment
  • Frequency Domain
  • Geology
  • Grain Size
  • High Resolution
  • Marine Geology
  • Measurement
  • Physical Properties
  • Porosity
  • Seabed
  • Sediments
  • Seismic Reflection
  • Seismic Velocity
  • Surveys
  • Water

Readers

  • Oceanography.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • AI & ML