The Solubility of CaF2 in Seawater of Normal and Increased Salinity (Associated with Genesis of Fluorite in Sedimentary Rocks)

The solubility of crystalline and precipitated calcium fluoride in seawater and brines of the first stages of its evaporative concentration (before the beginning of gypsum and halite setting) has been experimentally studied. It is established that in the entire studied range of salinity, seawater an...

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Published in:Moscow University geology bulletin 2023-12, Vol.78 (6), p.731-736
Main Authors: Savenko, A. V., Savenko, V. S.
Format: Article
Language:English
Subjects:
Basins
Brines
Calcium
Drying
Earth and Environmental Science
Earth Sciences
Fluorides
Fluorine
Fluorite
Geology
Gypsum
Halite
Hydrothermal solutions
River discharge
River flow
Runoff
Salinity
Seawater
Sedimentary rocks
Solubility
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Savenko, V. S.
description The solubility of crystalline and precipitated calcium fluoride in seawater and brines of the first stages of its evaporative concentration (before the beginning of gypsum and halite setting) has been experimentally studied. It is established that in the entire studied range of salinity, seawater and its derivatives are strongly undersaturated in calcium fluoride, which excludes its spontaneous precipitation in drying isolated sea basins. A necessary condition for the formation of sedimentary fluorite is the entry of significant amounts of dissolved fluorine from external sources, which can be river runoff, volcanic emanations, and hydrothermal solutions, into drying sea basins.
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ispartof Moscow University geology bulletin, 2023-12, Vol.78 (6), p.731-736
issn 0145-8752
1934-8436
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source Springer Nature
subjects Basins
Brines
Calcium
Drying
Earth and Environmental Science
Earth Sciences
Fluorides
Fluorine
Fluorite
Geology
Gypsum
Halite
Hydrothermal solutions
River discharge
River flow
Runoff
Salinity
Seawater
Sedimentary rocks
Solubility
title The Solubility of CaF2 in Seawater of Normal and Increased Salinity (Associated with Genesis of Fluorite in Sedimentary Rocks)
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