This article presents the results of drilling, experimental filtration work and laboratory studies aimed at assessing the resources and quality of groundwater in the licensed area of Vysotsky Island located in the Leningrad region, in the Gulf of Finland in accordance with the requirements of regulatory documents. Analysis of the results of hydrochemical studies and their comparison with data on water intakes in adjacent areas gives the right to conclude that it is possible to classify a hydrogeological unit as a different type of resource formation than those located in the surrounding areas. Groundwater in this area is confined to an unexplored deep fractured regional high-pressure zone. According to the received data, the explored water intake can be attributed to a unique groundwater deposit, which has an uncharacteristic composition of groundwater in the north of the Leningrad region, which may be due to the mixing of modern sediments and relict waters of the Baltic glacial lake. The stability of groundwater characteristics is confirmed by long-term monitoring.
Отмечаемое потепление климата имеет одним из своих результатов деградацию многолетней мерзлоты. Темпы этой деградации необходимо учитывать при изучении ресурсов и качества подземных вод, строительстве долговременных сооружений, захоронении радиоактивных отходов, реконструкции палеоклиматов и т.п. Рассматриваются теоретические основы и возможность использования разрабатываемой автором методики, основанной на изотопных системах δ 2 Н, δ 18 О, 234 U/ 238 U и датировании подземных вод уран-гелиевым и тритий-гелий-3-методами, а также корреляций между ними для реконструкции темпов деградации многолетней мерзлоты.
Hydrogeochemical and isotopic sampling of groundwater and surface water in the Almansora River basin was carried out in works on groundwater resources estimation in the province of Almeria (Spain). Surface and ground waters sampled in the Almansora River basin coincide with the general trend of atmospheric precipitation isotopic composition of the Mediterranean region, indicating an exclusively meteoric origin of ground and surface waters, the absence of significant isotopic fractionation after atmospheric precipitation, in particular due to evaporation. The insignificant role of transit flow in groundwater recharge within the hydrogeological unit of Auvers is shown.
По условиям залегания, распространения и состояния именно толща меломергельных отложений на месторождениях Курской магнитной аномалии (КМА) контролирует качество подземных вод региона ...
