Porijeklo i sastav biogene komponente sedimenta plaže Lojišće, Dugi otok

undergraduate thesis

• Title (english): Origin and composition of biogenous sediment of the Lojišće Beach, Dugi otok
• Author: Katja Bukvić
• Mentor: Kristina Pikelj (mentor)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2023-09-21, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Prema prethodnim istraživanjima, zaključeno je da je sediment plaže Lojišće sastavljen
primarno od karbonatnog pijeska biogenog porijekla veličine oko 0,2 mm. Uzorak pijeska gotovo
u potpunosti čine krhotine skeleta i ljuštura organizama. S obzirom da je materijal usitnjen, zbog
veličine zrna nemoguće je zaključiti koje skupine organizama su pridonijele njegovom stvaranju.
U jednoj od rijetkih prilika kada je pijesak bio izbačen na plažu, a prije nego je bio usitnjen
valovima, prikupljen je uzorak krupnog sedimenta iz kojeg je moguće prepoznati pojedine skupine
organizama. U krupnom uzorku dovoljno je očuvanih i prepoznatljivih krhotina, cijelih ljuštura i
drugih dijelova organizama koji mogu dati detaljniji uvid u sastav sedimenta.

Abstract (english)

According to past researches, it has been concluded that sediment from the beach
Lojišće is composed primarily of biogenic carbonate sand sized approximately 0,2 mm. The
sample of the sand is almost entirely made of shell fragments. Considering the small size of these
fragments, it is normally impossible to determine which organisms contributed to its genesis.
However, the sample of sand used in this research was collected from the beach on one of the rare
occasions before the fragments were weathered and broken down by waves, which enabled
macroscopic sorting, since the fragments remained large enough to still be visible with naked eye.
This coarse-grained sample contains preserved grains, fragments of shells and other organism
remains, enabling a more detailed insight into the composition of the sediment

• Keywords: plaža Lojišće; karbonatni pijesak; ljušture; sastav sedimenta
• Keywords (english): beach Lojišće; carbonate sand; shell; sediment composition
• Language: croatian
• URN:NBN: urn:nbn:hr:217:592847
• Study programme: Title: Environmental Sciences; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2025-09-21
• Created on: 2023-09-25 12:50:48