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Mineral formation at the East Pauzhetka thermal field (south Kamchatka) as an indication of influence of a deep-seated alkaline fluid and an epithermal ore-forming system

S. N. Rychagov, E. I. Sandimirova, M. S. Chernov, O. V. Kravchenko and A. V. Sergeeva
Mineral formation at the East Pauzhetka thermal field (south Kamchatka) as an indication of influence of a deep-seated alkaline fluid and an epithermal ore-forming system
Russian Geology and Geophysics (September 2022) Pre-Issue Publication

Abstract

A sequence of argillized rocks and hydrothermal clays of the East Pauzhetka thermal field was studied in detail by means of drilling and trenching. We have identified zones composed of unusual mineral associations; their formation conditions are considered. The structure of the base of the hydrothermal-clay mass is shown. The source rocks (brecciated andesites) of the base are altered by hydrothermal-metasomatic processes and are represented by smectite-chlorite-K-feldspar-zeolite-carbonate-siliceous aggregate with sulfides, phosphates, titanium silicates and zircon silicates, and other mineral phases, including rare metals. A conceptual geological and geochemical model for the formation of argillisites and zones with mineral associations has been plotted. It is assumed that modern mineral formation in the East Pauzhetka thermal field inherits an epithermal ore-forming system located in the influence zone of a deep-seated fluid, the derivates of which are outflowing near the surface as alkaline metal-bearing solutions of the Pauzhetka hydrothermal system.


ISSN: 1068-7971
EISSN: 1878-030X
Serial Title: Russian Geology and Geophysics
Serial Volume: Pre-Issue Publication
Title: Mineral formation at the East Pauzhetka thermal field (south Kamchatka) as an indication of influence of a deep-seated alkaline fluid and an epithermal ore-forming system
Affiliation: Russian Academy of Sciences, Far Eastern Branch, Institute of Volcanology and Seismology, Petropavlovsk-Kamchatsky, Russian Federation
Published: 20220923
Text Language: English
Publisher: Allerton Press, New York, NY, United States
References: 67
Accession Number: 2022-056168
Categories: Economic geology, geology of ore deposits
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sect., 6 tables, geol. sketch map
N51°27'10" - N51°27'10", E156°49'59" - E156°49'59"
Secondary Affiliation: Lomonosov Moscow State University, RUS, Russian Federation
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2022, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 2022
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