Accession Number:

ADA341650

Title:

Controlled Source Electromagnetic Sounding off the Coast of Eureka California

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB STENNIS SPACE CENTER MS MARINE GEOSCIENCES DIV

Report Date:

1997-06-01

Pagination or Media Count:

6.0

Abstract:

Controlled electromagnetic EM measurements were conducted with a ship towed electric bipole source and fixed electric and magnetic field sensor units that were deployed on the seafloor in 62 meters of water near Eureka, California. The objective was to determine the electrical properties of the marine sediments to depths greater than 20 meters. The survey site was positioned in a region that had been investigated by numerous shallow geologic and geophysical studies. Data was interpreted for a one-dimensional conductivity structure with an iterative least square scheme. The electrical properties interpreted from the EM measurements have been compared with the available bottom towed EM soundings in the area.

Subject Categories:

  • Electricity and Magnetism
  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE