The solubility of CaF2 in seawater of normal and increased salinity (associated with genesis of fluorite in sedimentary rocks)-Reference-Cited by-同舟云学术

The solubility of CaF2 in seawater of normal and increased salinity (associated with genesis of fluorite in sedimentary rocks)

Published:2023-10-18 Issue:5, 2023 Volume: Page:26-31
ISSN:0579-9406
Container-title:Ser-5_2023_4
language:ru
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Author:

Savenko Alla V.¹,Savenko Vitaliy S.¹

Affiliation:

1. Lomonosov Moscow State University

Abstract

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) was experimentally studied. It was established that in the entire studied range of salinity, seawater and its derivatives are strongly undersaturated by the calcium fluoride, which excludes its spontaneous precipitation in drying isolated sea basins. A necessary condition for the formation of sedimentary fluorite is the entry into the drying sea basins of significant amounts of dissolved fluorine from external sources, which can be river runoff, volcanic emanations, and hydrothermal solutions.

Publisher

Moscow University Press

Subject

General Earth and Planetary Sciences,General Environmental Science

Reference25 articles.

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