Результаты исследований: Научные публикации в периодических изданиях › статья по материалам конференции › Рецензирование
Geochemical investigations of environmental pollution in a darasun gold mine tailings area (Transbaikal kray, russia). / Yurkevich, Nataliya; Saeva, Olga; Bortnikova, Svetlana и др.
в: International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM, Том 17, № 33, 01.01.2017, стр. 179-186.Результаты исследований: Научные публикации в периодических изданиях › статья по материалам конференции › Рецензирование
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TY - JOUR
T1 - Geochemical investigations of environmental pollution in a darasun gold mine tailings area (Transbaikal kray, russia)
AU - Yurkevich, Nataliya
AU - Saeva, Olga
AU - Bortnikova, Svetlana
AU - Korneeva, Tatyana
AU - Tulisova, Kristina
N1 - Publisher Copyright: © SGEM2017.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Sulfide-bearing mine tailings of the Darasun ore processing plant situated in the permafrost zone in Trans Baikal region (Russia) were examined in 2016. The composition of mine drainages and affected river waters were investigated. The processes of oxidation and chemical weathering of mine tailings leads to removal of a wide spectrum of chemical elements according to geochemical analyses. Two associations of chemical elements were found: i) Tl, Pb, Cd, Zn, Mn, and Be; ii) Cu, Mo, Au, Ag, As, and Sb. Thallium is present in technogenic streams in the most toxic free ionic form of Tl + . Among the forms of beryllium, free cations predominate in technogenic acidic sulfate waters, and after mixing with natural water bodies, the basic form is the less toxic hydroxide Be(OH)2 (aq). The mobility of noble metals in natural watercourses is provided by complexation with cyanide ligands in the case of silver and hydroxo-complexes for gold.
AB - Sulfide-bearing mine tailings of the Darasun ore processing plant situated in the permafrost zone in Trans Baikal region (Russia) were examined in 2016. The composition of mine drainages and affected river waters were investigated. The processes of oxidation and chemical weathering of mine tailings leads to removal of a wide spectrum of chemical elements according to geochemical analyses. Two associations of chemical elements were found: i) Tl, Pb, Cd, Zn, Mn, and Be; ii) Cu, Mo, Au, Ag, As, and Sb. Thallium is present in technogenic streams in the most toxic free ionic form of Tl + . Among the forms of beryllium, free cations predominate in technogenic acidic sulfate waters, and after mixing with natural water bodies, the basic form is the less toxic hydroxide Be(OH)2 (aq). The mobility of noble metals in natural watercourses is provided by complexation with cyanide ligands in the case of silver and hydroxo-complexes for gold.
KW - Acid mine drainage
KW - Aurum
KW - Beryllium
KW - Mine tailings
KW - Mobility
KW - Saturation indices
KW - Species
KW - Thallium
UR - http://www.scopus.com/inward/record.url?scp=85063081770&partnerID=8YFLogxK
U2 - 10.5593/sgem2017H/33/S12.022
DO - 10.5593/sgem2017H/33/S12.022
M3 - Conference article
AN - SCOPUS:85063081770
VL - 17
SP - 179
EP - 186
JO - International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
JF - International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SN - 1314-2704
IS - 33
T2 - 17th International Multidisciplinary Scientific Geoconference, SGEM 2017
Y2 - 27 November 2017 through 29 November 2017
ER -
ID: 18900232