Geophysical investigations for evaluation of environmental pollution in a mine tailings area. / Yurkevich, Nataliya Viktorovna; Abrosimova, Natalya Aleksandrovna; Bortnikova, Svetlana Borisovna et al.
In: Toxicological and Environmental Chemistry, Vol. 99, No. 9-10, 26.11.2017, p. 1328-1345.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Geophysical investigations for evaluation of environmental pollution in a mine tailings area
AU - Yurkevich, Nataliya Viktorovna
AU - Abrosimova, Natalya Aleksandrovna
AU - Bortnikova, Svetlana Borisovna
AU - Karin, Yuriy Grigoryevich
AU - Saeva, Olga Petrovna
PY - 2017/11/26
Y1 - 2017/11/26
N2 - Sulfide-containing mill wastes of the Komsomolsk ore processing plant situated in the Kemerovo region (Russia) were examined in 2013–2015. Multipurpose studies of the mine tailings determined the composition of waste, pore water, mine drainages, and affected groundwater. Electrical resistivity tomography was used to trace the geoelectric zoning of the waste samples. Layers with low resistivity indicated areas with pore spaces filled with highly mineralized solutions with Fe, Cu, Zn, Cd, As, and Sb at total concentrations of up to 50 g/L. Anomalous zones can be specified as ‘geochemical barriers’–specific layers where the mobility of the elements is reduced due to pH conditions, redox potential, and Fe(III) hydroxide precipitation. The zones of increased conductivity in oxidized mine tailings indicated local areas with high acid production potential and coexisting acidic pore solution. In non-oxidized tailings, high conductivity of the mineral skeleton was observed. There was a migration of drainage outside the tailings, its direction monitored by geophysical data. Chemical analysis confirmed that the concentrations of As in groundwater samples were higher than the maximum permissible concentration.
AB - Sulfide-containing mill wastes of the Komsomolsk ore processing plant situated in the Kemerovo region (Russia) were examined in 2013–2015. Multipurpose studies of the mine tailings determined the composition of waste, pore water, mine drainages, and affected groundwater. Electrical resistivity tomography was used to trace the geoelectric zoning of the waste samples. Layers with low resistivity indicated areas with pore spaces filled with highly mineralized solutions with Fe, Cu, Zn, Cd, As, and Sb at total concentrations of up to 50 g/L. Anomalous zones can be specified as ‘geochemical barriers’–specific layers where the mobility of the elements is reduced due to pH conditions, redox potential, and Fe(III) hydroxide precipitation. The zones of increased conductivity in oxidized mine tailings indicated local areas with high acid production potential and coexisting acidic pore solution. In non-oxidized tailings, high conductivity of the mineral skeleton was observed. There was a migration of drainage outside the tailings, its direction monitored by geophysical data. Chemical analysis confirmed that the concentrations of As in groundwater samples were higher than the maximum permissible concentration.
KW - arsenic
KW - drainage
KW - geophysical investigation
KW - groundwater
KW - Mine tailings
UR - http://www.scopus.com/inward/record.url?scp=85030157539&partnerID=8YFLogxK
U2 - 10.1080/02772248.2017.1371308
DO - 10.1080/02772248.2017.1371308
M3 - Article
AN - SCOPUS:85030157539
VL - 99
SP - 1328
EP - 1345
JO - Toxicological and Environmental Chemistry
JF - Toxicological and Environmental Chemistry
SN - 0277-2248
IS - 9-10
ER -
ID: 9895151