Accession Number:

AD0731225

Title:

Examination of the Frequency-Dependent Conductivity of Ore-Containing Rock on Artificial Models,

Descriptive Note:

Corporate Author:

INNSBRUCK UNIV (AUSTRIA) ELECTRONICS LAB

Personal Author(s):

Report Date:

1971-07-15

Pagination or Media Count:

33.0

Abstract:

Rocks that contain finely distributed sulfide ore particles show a characteristic dispersion of their complex electric conductivity in the region of lower frequencies. Artificial samples are used for checking a theoretical model by I. R. Wait which was specialized for the case that electrochemical impedance on the orepore water interfaces is governed mainly by a process of diffusion. The results show that the influences of ore content and grain size on the shape and frequency range of conductivity spectra may be explained on this model. Contrary to the model expectations, the extent of induced polarization also depends on the grain size. The reason lies in the pore structure of the rocks which in the model had not been taken into considerations sufficiently. Author

Descriptors:

Subject Categories:

  • Geology, Geochemistry and Mineralogy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE