The influence of natural and anthropogenic factors on grain size distribution along the southeastern Baltic spits

Research reveals that grain size distribution along the southeastern Baltic spits is primarily governed by hydrometeorological regimes, anthropogenic activities, and geological frameworks. While the Curonian, Vistula, and Hel spits share common characteristics such as fine- to medium-grained marine sand, their sediment patterns differ significantly due to varying longshore sediment transport directions and human interventions. Notably, grain size decreases with distance from sediment sources on the Vistula and Curonian spits, reflecting natural processes, whereas artificial beach nourishment and hydrotechnical constructions disrupt this pattern on the Hel Spit. Lithological anomalies, like those in Juodkrantė, further influence sand differentiation. The study analyzed 330 sand samples collected at 1 km intervals from beaches and foredunes, providing insights into the complex interplay of natural and human factors shaping coastal sediment dynamics.

ŽILINSKAS, G., JARMALAVIČIUS, D., & PUPIENIS, D. (2018). The influence of natural and anthropogenic factors on grain size distribution along the southeastern Baltic spits. Geological Quarterly. https://doi.org/10.7306/gq.1413