Olga L. Gaskova graduated from the Novosibirsk State University as geochemist in 1979 and is still working at the Sobolev Institute of Geology and Mineralogy SB RAS. She is a leading staff scientist. She received her PhD in geochemistry of hydrothermal sulfide ore formation (experimental and modeling study) in 1991 and Dr.Sc. in the environmental geochemistry of mine-related regions in 2005 from the Institute of Geology and Mineralogy, Novosibirsk. She has made numerous scientific contributions in geochemistry of mine wastes and limnologic researches. She published over 100 articles on these topics, including two monographs (printed in 2003 and 2007 in Russian). Her research stays in Europe included BRGM (Orleans, France) and Paul Scherrer Institute (Villigen, Switzerland), as well as field expertise of ore stockpiles in Vietnam (Institute of Geological Sciences, Hanoi). Since 2003 she gives lectures on “Methods of calculation of minerals equilibria” at the Novosibirsk State University (Geological-Geophysical Faculty). She is an expert of the Russian Science Foundation (RSF) and the Russian Foundation for Basic Research, the head of grants and reviewer of international journals (e.g., Environmental Earth Sciences, Journal of Geochemical Exploration). It is especially worth emphasizing that she was the head of a large grant from the RSF “Physical-chemical modeling of hydrogeochemical processes in the bog and lake systems of Southern Siberia, Northern Kazakhstan and Western Mongolia in the presence of natural high-molecular organic acids”. Prof. Olga Gaskova has participated as а Lecturer at the 17th International Multidisciplinary Scientific GeoConference SGEM 2017 and kindly contributed to the success of the conference as being a SESSIONS CHAIRMAN during plenary scientific session on 12.Hydrology and Water Resources, 13.Soils and 14.Forest Ecosystems. Concerning Environmental Science and Advanced Technology, her papers outline a conceptual vision of many problems, like characterization of a gold extraction plants environment in assessing the hazardous nature of accumulated wastes, evidence of trace element emission during the combustion of sulfide bearing metallurgical slags, Authigenic gold formation in the cyanidation tailings of gold-arsenopyrite-quartz ore. In articles and speeches much attention is paid to the problem of uranium release from contaminated sludge materials and uptake by subsurface sediments: experimental study and thermodynamic modeling (e.g. IAP-2014 Conference - Interfaces in Water and Environmental Science, Netherlands).