Morphological and chemical features of submarine groundwater discharge zones in the south-eastern part of the Baltic Sea

The complex study of the bottom sediments and near-bottom water layer of the Gdansk Deep revealed the Ca maximum anomaly, marking the discharge of the Oxford-Titonian aquifer. The discharge zone is associated with gas-saturated sediments, which is caused by a common pathway of aqueous and gaseous fl...

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Bibliographic Details
Main Authors: Krek Alexander V, Danchenkov Alexander, Mikhnevich Galina Sergeevna
Format: Article
Language:English
Published: Russian Academy of Sciences, The Geophysical Center 2022-09-01
Series:Russian Journal of Earth Sciences
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Online Access:http://doi.org/10.2205/2022ES000776
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Summary:The complex study of the bottom sediments and near-bottom water layer of the Gdansk Deep revealed the Ca maximum anomaly, marking the discharge of the Oxford-Titonian aquifer. The discharge zone is associated with gas-saturated sediments, which is caused by a common pathway of aqueous and gaseous fluids upraise along tectonic faults. The detailed survey of a seabed topography and acoustic survey of the sediments upper layer helped to specify the area of gas-saturated sediments and the size of the pockmarks.
ISSN:1681-1208