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Electrical Resistivity at Room Temperature and Relation between Physical Properties of Core Samples from Ulleung Island
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  • Journal title : Geophysics and Geophysical Exploration
  • Volume 18, Issue 4,  2015, pp.171-180
  • Publisher : Korean Society of Earth and Exploration Geophysicists
  • DOI : 10.7582/GGE.2015.18.4.171
 Title & Authors
Electrical Resistivity at Room Temperature and Relation between Physical Properties of Core Samples from Ulleung Island
Lee, Tae Jong; Lee, Sang Kyu; Yun, Kwan-Hee;
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Electrical resistivity of 23 core samples from Ulleung Island at dry or saturated condition has been measured along with dry density and effective porosity, and the relations between the properties has also been discussed. Upper and lower bounds of electrical resistivity at room temperature can be provided by the dry- and saturated-resistivity, respectively. Injecting nitrogen gas to the pore space at the very end of drying process can prevent humid air from getting into the pore space, so that measurement of dry-resistivity can be less affected by humidity in the air. Dry density and porosity have very close correlation; the ratio between increase of porosity and the decrease of density showed distinct relation to the rock types, such that basaltic rocks showed higher ratio while trachytic rocks showed lower. Saturated resistivity showed close correlation to density and effective porosity of the rock sample, while dry resistivity didn`t.
Ulleung Island;core sample;saturated resistivity;dry resistivity;density;effective porosity;correlation;
 Cited by
시험편의 고체질량 초기화와 건조 지속 방법,이상규;이태종;이영민;

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