Natural site: lake. Lake bottom sampling during the 2018 drought. 9 palynological samples.
Natural site: peat bog in the north edge of the lake. 5 palynological samples. 1st half of the subatlantic period at 2.15 m depth. Should be looked by new analysis.
Natural site; lcustrine drilling. 147 palynological samples + 19 radiocarbon datings.