Change of solution composition during it migration through the sedimentary cover in the center of the modern hydrothermal system (Juan de Fuca Ridge, Pacific Ocean, Hole ODP 858B)
- Authors: Kurnosov V.B.1, Konovalov Y.I.1, Okina O.I.1, Galin K.R.1
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Affiliations:
- Geological Institute of the RAS
- Issue: No 2 (2024)
- Pages: 163-179
- Section: Articles
- URL: https://journal-vniispk.ru/0024-497X/article/view/259016
- DOI: https://doi.org/10.31857/S0024497X24020021
- EDN: https://elibrary.ru/zbzuks
- ID: 259016
Cite item
Abstract
The article presents the results of studying the change of the composition of the hydrothermal solution during its migration through the Pleistocene sediments from the Hole ODP 858B 38.6 m deep, which was drilled in the northern segment of the Middle Valley of the Juan de Fuca Ridge, in the Dead Dog hydrothermal field, in 20 m from the hydrothermal source with temperature 276°C. The influence of sediments of the Units I, IIB, IID from this hole on the change in the composition of the solution during the solution-sediment interaction has been established. The greatest influence on the composition of the solution occurred during its interaction with the sediments of the Units IIB and IID under high-temperature conditions (200–350°C), which is expressed in the enrichment of the solution with a large amount of chemical elements. A possible change in the composition of the solution is shown in the process of solution-sediment interaction during its migration through the entire sedimentary cover with a thickness of 250–300 m.
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About the authors
V. B. Kurnosov
Geological Institute of the RAS
Author for correspondence.
Email: vic-kurnosov@rambler.ru
Russian Federation, Moscow
Yu. I. Konovalov
Geological Institute of the RAS
Email: vic-kurnosov@rambler.ru
Russian Federation, Moscow
O. I. Okina
Geological Institute of the RAS
Email: vic-kurnosov@rambler.ru
Russian Federation, Moscow
K. R. Galin
Geological Institute of the RAS
Email: vic-kurnosov@rambler.ru
Russian Federation, Moscow
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