In August 2023, we went on a cruise to the Gulf of Finland. The surveys were carried out by the Estonian multipurpose vessel EVA 316. We investigated the seafloor of the Gulf of Finland by remotely operated vehicle (ROV). Beata Szymczycha, Przemysław Makuch and Aivo Lepland collected water, sediment and manganese concretions.
We are currently carrying out tests with a Gasbench II an on-line gas preparation and introduction system for isotope ratio mass spectrometry, coupled to continuous flow isotope ratio mass spectrometer. The IRMS combined with the Gasbench II allows the determination of δ13C values of dissolved inorganic carbon and δ15N natural abundance of dissolved nitrogen gas in groundwater.
The samples were collected on the Sopot beach for water incubation tests.
