ELECTRICAL RESISTIVITY OF MODERN MARINE SEDIMENTS FROM THE BERING SEA.

A study of the relationships between electrical resistivity and the bulk physical properties of sea-floor sediments. Electrical resistivity was measured in gravity-cored, unconsolidated sediments from the Bering Sea. Resistivity ranged from 29.1 to 71.0 ohm-cm at 25C and irregularly increased 11 ohm...

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Bibliographic Details
Main Author: Boyce,Robert E.
Other Authors: NAVAL UNDERSEA WARFARE CENTER SAN DIEGO CALIF
Format: Text
Language:English
Published: 1967
Subjects:
Physical and Dynamic Oceanography
(*MARINE GEOPHYSICS
BERING SEA)
(*SEDIMENTATION
ELECTRICAL RESISTANCE)
DENSITY
OCEAN BOTTOM SAMPLING
SEA WATER
PHYSICAL PROPERTIES
SALINITY
MEASUREMENT
POROSITY
Most Project-2
Bering Sea
Rho
Online Access:http://www.dtic.mil/docs/citations/AD0663122
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0663122
Description
Summary:A study of the relationships between electrical resistivity and the bulk physical properties of sea-floor sediments. Electrical resistivity was measured in gravity-cored, unconsolidated sediments from the Bering Sea. Resistivity ranged from 29.1 to 71.0 ohm-cm at 25C and irregularly increased 11 ohm-cm in the first meter below the sediment surface, principally because of porosity changes. In situ resistivity may be greater than these laboratory values by a factor of 2. The formation factor, F, which is the ratio of sediment resistivity to interstitial water resistivity, ranged from 1.57 to 3.70 and was related to porosity, phi, and wet bulk density, rho, respectively, by: F = 1.30 phi to the minus 1.45 power and F = 1.12 rho to the 1.72 power of plus or minus 15 percent and plus or minus 10 percent. Within certain limits resistivity may be used to estimate other physical properties of sediment. (Author)

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