Properties of the particulate phase in deep saline groundwater in Laxemar, Sweden

Anders Düker, Anna Ledin

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Composition, concentration and size distribution of the particulate phase in saline groundwater from the Laxemar borehole, Sweden, were measured at three different sampling sections sealed off by rubber packers (315.0-321.5, 1090.0-1096.3 and 1420.0-1705.0 m). Concentration and size distribution analysis were performed on-line in a field laboratory using measurements of light scattering in combination with photon correlation spectroscopy (PCS). Estimates of the chemical composition of the solid phase were obtained from scanning electron microscopy (SEM) coupled to energy dispersive spectroscopy (EDS), and saturation calculations were made with the geochemical code PHREEQE, based on hydrochemical analysis. The results indicate that the particulate phase consisted of aluminosilicates, SiO2, CaF, and probably CaCO3. The concentration of particulates varied between the different depths with the lowest content at the 1090.0-1096.3 m level, where it was estimated to be
Original languageEnglish
JournalWater Research
Issue number1
Pages (from-to)186-192
Publication statusPublished - 1998

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