Composition and Genesis of Carbonate Concretions in the Region of Paramushir Hydroacoustic Anomalies (Sea of Okhotsk)

Carbonate concretions in the region of Paramushir hydroacoustic anomalies are confined to the methane seep zones controlled by deep (tectonically weakened) bottom areas. Based on the structure, as well as chemical and mineral composition, the concretions can be classified as volcanosedimentary rock...

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Bibliographic Details
Published in:Lithology and Mineral Resources 2023-06, Vol.58 (3), p.196-212
Main Authors: Petrova, V. V., Rashidov, V. A., Gorkova, N. V.
Format: Article
Language:English
Subjects:
Anomalies
Aragonite
Carbonates
Chemical composition
Concretions
Earth and Environmental Science
Earth Sciences
Mineral composition
Mineral Resources
Mineralogy
Sedimentary structures
Sedimentology
Underwater acoustics
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Summary:Carbonate concretions in the region of Paramushir hydroacoustic anomalies are confined to the methane seep zones controlled by deep (tectonically weakened) bottom areas. Based on the structure, as well as chemical and mineral composition, the concretions can be classified as volcanosedimentary rock consisting of the vitro-, litho-, and crystalloclasts and buried microfauna cemented with the carbonate (aragonite) cement. The details and sequence of mineral formation of carbonate concretions are considered.
ISSN:0024-4902
1608-3229
1573-8892
DOI:10.1134/S0024490223700104