Karakteristike sedimenta plaže Ričina (uvala Jasenovo)

undergraduate thesis

• Title (english): Sediment characteristics of the Ričina beach (Jasenovo Bay)
• Author: Ivan Misović
• Mentor: Kristina Pikelj (mentor)
• Committee member: Kristina Pikelj (predsjednik povjerenstva)
• Committee member: Marijan Kovačić (član povjerenstva)
• Committee member: Blanka Cvetko Tešović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2021-09-20, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract

U ovom radu istražene su karakteristike sedimenta plaže Ričina na 5 lokacija, kako bi se utvrdile eventualne razlike u sastavu i veličini zrna. Pri tome je cilj bio ispitati postoji li i kakav je utjecaj duž-obalnog transporta. Korištene metode da bi se postigao zadani cilj su metoda određivanja veličine zrna, metoda određivanja karbonatne komponente u sedimentu, metoda mikroskopiranja i metoda difrakcije rendgenskih zraka na praškastom uzorku. Rezultati provedenih analiza pokazali su da idući od jugoistoka prema sjeverozapadu sediment pokazuje smanjenje veličine zrna, nešto bolju sortiranost i blago smanjenje karbonatne komponente. Sediment plaže je u najvećoj mjeri terigen, nastao trošenjem obližnjih kvartarnih klifova. Svi rezultati upućuju na postojanje duž-obalnog transporta koji je relativno blag, a to se pripisuje utjecaju bure, koja puše kratko i na mahove, jer radi orijentaciju plaže i uvale, inače dominantno jugo ne može razviti značajnije valove u Uvali Jasenovo.

Abstract (english)

In this work, the characteristics of the sediment of the Ričina beach at 5 locations were studied in order to define eventual differences in sediment grain size and composition.The aim was to examine the existence of longshore drift and its impact on the beach sediment. The analyses used in this paper to achieve the aim were grain size analysis, carbonate component analysis, microscopy and analysis of mineral composition. The results showed that grain size decreases going from the southeast to the northwest, as well as the carbonate content, while sediment sorting improves in the same direction. Beach sediment is mostly of terrigenous origin, resulting from erosion of the coastal cliff. All results indicated the existence of the longshore drift. Its influence on the beach sediment is relatively mild, and probably the result of the Bora wind, which blows during short period of time and is known by its gusts. Although being the dominant wind along the shore, Jugo cannot induce longshore drift due to the orientation of the Jasenovo Bay.

• Keywords: duž-obalna struja; plaža Ričina; Uvala Jasenovo; karbonatni sediment
• Keywords (english): longshore drift; Ričina beach; Jasenovo Bay; carbonate sediment
• Language: croatian
• URN:NBN: urn:nbn:hr:217:297585
• Study programme: Title: Geology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) geologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2023-09-20
• Created on: 2025-02-05 14:40:37