Abstract
A five-year observation (2017–2022) of abrasion destruction of rocks in the littoral and upper sublittoral zone of the Dalnezelenetskaya Bay (Murmansk coast) was carried out. During this period, a slow rate of destruction of rocks was observed, not only in the upper sublittoral zone, but also along the entire littoral of the coast. It was revealed that the rate of destruction of coarse-grained material in 2017–2022 averaged 15±3 µm/g. The greatest influence on the intensity of destruction of rocks was exerted by storms generated by winds with a force of 7–12 m/s from the east and southeast directions. It is established that in 2021–2022 there was an activation of abrasion destruction of rocks in the sublittoral zone of the Murmansk coast. Based on the analysis of hydrological, meteorological and seismic data, it is assumed that the activation of the abrasion process was caused by an increase in the number of storm periods, perhaps the tectonic activity of disjunctive structures on the coast played an important role in this. The data obtained indicate that changes in the temperature and salinity of the water mass in the bay do not have a significant effect on the rate of the abrasion process.
Published Version
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