Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Комплексная электропроводность кимберлитовых пород. / Емельянов, В. И.; Титов, К. В.; Ревил, А.
Engineering and Mining Geophysics 2020. European Association of Geoscientists and Engineers, 2020. p. 1-6 (Engineering and Mining Geophysics 2020).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Комплексная электропроводность кимберлитовых пород
AU - Емельянов, В. И.
AU - Титов, К. В.
AU - Ревил, А.
N1 - Publisher Copyright: © Engineering and Mining Geophysics 2020. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020/9/14
Y1 - 2020/9/14
N2 - Kimberlites are the main sources of diamonds. In field geophysics kimberlite pipes are characterized by anomalies of low resistivity. However, the reason for high electrical conductivity is not clear. We have carried out multisalinity experiments with two kimberlite samples (autolitic and xenotuffisitic breccia) from Arkhangelsk region (Lomonosova Deposit). Samples were saturated with brines of different electrical conductivity values (from 0.01 to 3.77 S/m). Complex electrical conductivity was measured with SIP FUCHS-III instrument in the frequency range from 1.43 mHz to 20 kHz. We found the bulk conductivity of sample is larger than that of the pore water (at the brine electrical conductivity range typical for fresh water). The quadrature conductivity values at 1.46 Hz are larger than that typically obtained for e.g., magmatic rocks and sandstones. We attribute this complex conductivity behavior to the surface conductivity influence. Furthermore, our kimberlite samples have a high values of cation-exchange capacity (CEC). It can be explained by the presence of smectites in mineral composition.
AB - Kimberlites are the main sources of diamonds. In field geophysics kimberlite pipes are characterized by anomalies of low resistivity. However, the reason for high electrical conductivity is not clear. We have carried out multisalinity experiments with two kimberlite samples (autolitic and xenotuffisitic breccia) from Arkhangelsk region (Lomonosova Deposit). Samples were saturated with brines of different electrical conductivity values (from 0.01 to 3.77 S/m). Complex electrical conductivity was measured with SIP FUCHS-III instrument in the frequency range from 1.43 mHz to 20 kHz. We found the bulk conductivity of sample is larger than that of the pore water (at the brine electrical conductivity range typical for fresh water). The quadrature conductivity values at 1.46 Hz are larger than that typically obtained for e.g., magmatic rocks and sandstones. We attribute this complex conductivity behavior to the surface conductivity influence. Furthermore, our kimberlite samples have a high values of cation-exchange capacity (CEC). It can be explained by the presence of smectites in mineral composition.
UR - http://www.scopus.com/inward/record.url?scp=85099680577&partnerID=8YFLogxK
U2 - 10.3997/2214-4609.202051102
DO - 10.3997/2214-4609.202051102
M3 - статья в сборнике материалов конференции
AN - SCOPUS:85099680577
T3 - Engineering and Mining Geophysics 2020
SP - 1
EP - 6
BT - Engineering and Mining Geophysics 2020
PB - European Association of Geoscientists and Engineers
T2 - Engineering and Mining Geophysics 2020
Y2 - 14 September 2020 through 18 September 2020
ER -
ID: 74982592