Open AccessChemical composition of groundwater in the zone of slow water exchange of the Upper Pontian aquifer, Northwestern Bulgaria
Author(s) -
Aglaida Toteva,
Stefan Shanov
Publication year - 2021
Publication title -
inženerna geologiâ i hidrogeologiâ
Language(s) - English
Resource type - Journals
eISSN - 2738-6996
pISSN - 0204-7934
DOI - 10.52321/igh.35.1.23
Subject(s) - aquifer , hydrogeology , groundwater , geology , geochemistry , cone of depression , hydrology (agriculture) , artesian aquifer , geotechnical engineering
The Upper Pontian aquifer occupies the central part of the Lom Depression. The geological position determines its gradual dipping from the periphery to the central parts. It is one of the most water-abundant aquifers in Northwestern Bulgaria and is associated with the sands of the Archar Formation. The chemical composition of the waters is of interest and is important for the water supply in the area. The analysis of the data shows that there are regularities in the change of the water quality with aquifer depth. Significant differences in some of the hydrochemical parameters are found in the zone of slow water exchange and geological and hydrogeological explanations have been sought.