Rare-earth elements and isotopic geochemistry of thermal waters of the Okhotsk sea shore, Far East of Russia
Abstract New data on hydrogeochemistry of thermal waters of the Okhotsk sea-shore (Ulskiy, Annensky Tumnin, Talaya, Paratunka, Dagi and Lesogorsky) is presented in the paper. Sikhote-Alin ridge thermal waters with crystalline host rocks refer to sulfate-hydrocarbonate or hydrocarbonate sodium fresh...
Published in: | IOP Conference Series: Earth and Environmental Science |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
IOP Publishing
2020
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Subjects: | |
Online Access: | http://dx.doi.org/10.1088/1755-1315/467/1/012092 https://iopscience.iop.org/article/10.1088/1755-1315/467/1/012092/pdf https://iopscience.iop.org/article/10.1088/1755-1315/467/1/012092 |
Summary: | Abstract New data on hydrogeochemistry of thermal waters of the Okhotsk sea-shore (Ulskiy, Annensky Tumnin, Talaya, Paratunka, Dagi and Lesogorsky) is presented in the paper. Sikhote-Alin ridge thermal waters with crystalline host rocks refer to sulfate-hydrocarbonate or hydrocarbonate sodium fresh waters with elevated silicon content (up to 41 ppm), lowest TDS (<0.3 g/L), alkaline (9.1 Eh>-157 mV). Geological conditions were proved by shapes of REE patterns (positive Eu-anomaly for sedimentary basins). Stable water isotopes led us to divide roughly studied waters into two groups, using peculiarities of moisture source for water recharge areas. First group: Tumin, Annensky and Talaya with more “continental” climate as for mainland thermal waters, forming isotopically lighter water and second group: Ulskiy, Paratunka, Dagi and Lesogorsky, with “marine” climate of Sakhalin and Kamchatka, forming isotopically heavier water. |
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