Morphological and chemical features of submarine groundwater discharge zones in the south-eastern part of the Baltic Sea
Author:
Krek A1, Danchenkov A1, Mikhnevich Galina2
Affiliation:
1. Shirshov Institute of Oceanology RAS 2. Immanuel Kant Baltic Federal University
Abstract
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.
Publisher
Geophysical Center of the Russian Academy of Sciences
Subject
General Earth and Planetary Sciences
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