TORFOWISKA MIERZEI I NIZINY KARWIENSKIEJ POTENCJALNYM ARCHIWUM EKSTREMALNYCH ZALEWÓW SZTORMOWYCH/The peatlands of the Karwia Barrier and Karwia Lowland as a potential archive of extreme storm floods

• Published in: Acta geographica Lodziensia no. 105; p. 141
• Main Author: Moskalewicz, Damian
• Format: Journal Article
• Language: English
• Published: Lódz Lódzkie Towarzystwo Naukowe 01.01.2016
• ISSN: 0065-1249; 2451-0319

Karwia Barrier peatlands are a potential archive of extreme storm floods. During the field work, the subsurface sediments of the investigated area were surveyed to verify the hypothesis of a presence of storm surge deposits within the barrier and accompanying peatlands. Numerous shallow drillings were performed and the most essential of them are presented in this paper. A distinguishable sedimentological mark of storm surge processes was recognized only in a peatland exposed directly to the sea, in close neighbourhood to the Czarna Wda river mouth. Thickness of sandy deposits decreasing landward and a sharp erosive boundary in the base were the most common features. Textural characteristics of sandy grains revealed a beach and dune source of these sediments. Peatlands located at the back of the barrier lacked sediments, which could be linked to the storm processes. This leads to a conclusion that none of historical storm floods left an easily distinguishable sandy layer within the Karwia Lowland.