Seismic architecture of the tip of the Hel Peninsula, Poland

Abstract

The article presents results of a pioneering research on the main geological features of the Hel Peninsula based on the analysis of seismic profiles and their comparison with geological cross-sections made on the basis of drillings. The following three parts of the tip structure have been identified: barrier basement (1), barrier core (2) and barrier upper part (3). Seismic facies distinguished therein were subsequently geologically interpreted as follows: Cretaceous marl and limestone (1.1), glacial till and diamicton (1.2), silt and clay of limnoglacial/limnic/marine origin (1.3), barrier sand of the core (2), and sand and peat of the barrier upper part (3). Geological cross-sections covering the geological structure of the tip of the Hel Peninsula underwater slope and the surrounding seabed. The slope base and the distal sand colluvium extent on the seafloor were determined. This paper is the first to present a crosswise section in this part of the Hel Peninsula.

Artificial Nourishment Schemes along the Polish Coast and Lagoon Shores between 1980 and 2020, with a Particular Focus on the Hel Peninsula

“…As a result, this section of the coast is relatively well diagnosed as regards hydrodynamic impacts, morphological characteristics, and susceptibility to erosion of its fragments [4]. Thanks to the surveys, measurements, and numerical simulations that have been carried out, information has been obtained on the wave motion, currents, and sediment transport, which made it possible to identify in detail the morpholithodynamics of the Hel Peninsula shoreface [85][86][87]. The modelling of hydrodynamic conditions proved the occurrence of maximum currents with an NW wind.…”