Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
Комплексная электропроводность кимберлитов: первые результаты лабораторных исследований. / Титов, К.В.; Емельянов, В.И.; Ревиль, А.
15th Conference and Exhibition Engineering and Mining Geophysics 2019, Gelendzhik 2019: 22 April 2019 до 26 April 2019. European Association of Geoscientists and Engineers, 2019. стр. 217-223.Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
}
TY - GEN
T1 - Комплексная электропроводность кимберлитов: первые результаты лабораторных исследований
AU - Титов, К.В.
AU - Емельянов, В.И.
AU - Ревиль, А.
PY - 2019/4/22
Y1 - 2019/4/22
N2 - Kimberlites are of interest for geologists because they present important sources of diamonds. Electrical methods usually provide useful information to delineate kimberlite pipes, which typically show small apparent resistivity values. However, to the best of our knowledge, nobody studied, why intrusive rock like kimberlite is a good electrical conductor. We carried out multi-salinity experiments with kimberlite sample (autholitic breccia) taken in Arkhangelsk region (Deposit Lomonosova). We saturated sample with 9 brines of different electrical conductivity values (from 0.01 to 2.68 Sm-1), and we measured its complex electrical conductivity with SIP FUSCH III instrument in the frequency range from 1.4 mHz to 20 kHz. At the brine electrical conductivity range below 0.16 Sm-1, we found the real part of the bulk electrical conductivity to be larger than that of the brine. Within the studied brine electrical conductivity range, the quadrature conductivity at 1.46 Hz varies in the range from 3 to 5 mSm-1, which values are larger than that typically obtained for e.g., volcanic rocks and sandstones. We attribute this behavior of the complex conductivity to the surface conductivity occurring within the electrical double layer coating the interface between the solid and liquid phases.
AB - Kimberlites are of interest for geologists because they present important sources of diamonds. Electrical methods usually provide useful information to delineate kimberlite pipes, which typically show small apparent resistivity values. However, to the best of our knowledge, nobody studied, why intrusive rock like kimberlite is a good electrical conductor. We carried out multi-salinity experiments with kimberlite sample (autholitic breccia) taken in Arkhangelsk region (Deposit Lomonosova). We saturated sample with 9 brines of different electrical conductivity values (from 0.01 to 2.68 Sm-1), and we measured its complex electrical conductivity with SIP FUSCH III instrument in the frequency range from 1.4 mHz to 20 kHz. At the brine electrical conductivity range below 0.16 Sm-1, we found the real part of the bulk electrical conductivity to be larger than that of the brine. Within the studied brine electrical conductivity range, the quadrature conductivity at 1.46 Hz varies in the range from 3 to 5 mSm-1, which values are larger than that typically obtained for e.g., volcanic rocks and sandstones. We attribute this behavior of the complex conductivity to the surface conductivity occurring within the electrical double layer coating the interface between the solid and liquid phases.
KW - Economic geology
KW - Electric conductivity
KW - Geophysics
KW - minerals
KW - Phase interfaces
UR - http://www.scopus.com/inward/record.url?scp=85071356499&partnerID=8YFLogxK
U2 - 10.3997/2214-4609.201901708
DO - 10.3997/2214-4609.201901708
M3 - статья в сборнике материалов конференции
SP - 217
EP - 223
BT - 15th Conference and Exhibition Engineering and Mining Geophysics 2019, Gelendzhik 2019
PB - European Association of Geoscientists and Engineers
T2 - 15th Conference and Exhibition Engineering and Mining Geophysics 2019, Gelendzhik 2019
Y2 - 22 April 2019 through 26 April 2019
ER -
ID: 47876187