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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Kreidos vandeningojo komplekso požeminio vandens cheminės sudėties formavimosi ypatumai Lietuvoje / Formation peculiarities of the groundwater chemical composition of the cretaceous aquifer system, lithuania

Kaušinis, Kostas 08 September 2009 (has links)
Atliktas kreidos vandeningojo komplekso hidrogeocheminis rajonavimas, kurio metu, MapInfo bei Vertikal Maper programomis buvo sudaryti hidrocheminiai žemėlapiai bei įvertinti kreidos vandeningo komplekso požeminio vandens paplitimo dėsningumai. Sudarytas jungtinis anijonų - katijonų rombas – Piperio diagrama, leidžianti apibūdinti požeminio vandens tipą bei spręsti apie vandens cheminės sudėties formavimosi procesą. Naudojant hidrocheminio modeliavimo programą Phreeqc Interactive 2.8 buvo atliktas kreidos vandeningojo komplekso požeminio vandens hidrocheminis modeliavimas ir sudarytos pirminių mineralų – kalcito, dolomito, anortito, albito stabilumo diagramos, leidžiančios įvertinti požeminio vandens pusiausvyrą sistemoje „požeminis vanduo – karbonatai – aliumosilikatai – molio mineralai“. / The hydrogeochemical regionalisation of the Cretaceous aquifer system has been completed. Also, together with hydrogeochemical maps it has been possible to evaluate the regularity of distribution of ground water in the Cretaceous aquifer system, using MapInfo and Vertical Mapper software. A rhombus - Piper's diagram, of united anion - cation data was created, which allows the ground water type to be characterized, and make judgements about the formation processes of aquifer. Using the hydrochemical modelling software Phreeqc Interactive 2.8, the hydrochemical modelling of the Cretaceous aquifer system has been compiled, together with stability diagram of primary minerals: calcite, dolomite, anorthite and albite, which, in turn, allows for evaluation of the ground water balance in the system "ground water-carbonates-aluminosilicates-clay minerals.

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