Investigating geological factors on the quality of aquifers in the Qalgachi plain and its environmental effects

سال انتشار: 1401
محل انتشار: اولین کنفرانس بین المللی دانشجویان مهندسی معدن، زمین شناسی و متالورژی
کد COI اختصاصی: MGMCD01_018
زبان مقاله: انگلیسی
تعداد مشاهده: 235

نویسندگان

Ph.D. student of Uromi University

Professor of Urmia University (Department of Geology, Faculty of Geology, Urmia University

چکیده

The study area of Qalgachi plain is located on the western edge of Lake Urmia and is considered a part of Khoy Mako zone. In this watershed, there are different types of igneous and sedimentary rocks that have different age ranges. Alluvial sediments, thick layered limestone to a white mass of Miocene, and Miocene Ghoshchi granite form the most outcrops of the region. In this study, in order to investigate the quality and source of salinity of aquifers, nine selected wells in the region were used during the months of October and June ۲۰۱۳. By drawing zoning maps in the GIS (Arc map) software, the spatial distribution of chemical changes in the underground water of Qalgachi plain was determined. based on the results of physicochemical analysis, the element concentration values were compared with the World Health Standard (WHO) values and the quality status of aquifers for drinking purposes was analyzed and interpreted. For chlorine ion, about ۸۸.۸۸ percent of the samples have concentrations exceeding the international standard, which are considered unsuitable for drinking. one of the methods of determining the qualitative characteristics of underground water for irrigation purposes is according to the Wilcox method. And it was determined that the majority of study samples are in the class C۴S۲, C۴S۳, C۴S۱, which are very salty in terms of quality. the deterioration of the chemical quality of the underground water in the study area can be attributed to the outcrop of Miocene sediments in the northern part of the region, the weathering and erosion of the Precambrian geological structures in the highlands of the region, and the direction of the region's slope towards the plain, which causes the accumulation of water currents and the increase of ion concentration and also the sharp drop in the water level of the underground aquifers, which has caused the reversal of the groundwater flow and the influx of salt water into the alluvial aquifer.

کلیدواژه ها

hydrochemistry, Geological formations , salinity, zoning

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.