Foraminiferske zajednice i paleoekološka interpretacija eocenskih lapora lokaliteta Slani potok (Vinodolska dolina)

master's thesis

• Title (english): Foraminiferal assemblages and paleoecological interpretation of the Eocene marls at Slani Potok locality (Vinodol Valley)
• Author: Sanja Peradinović
• Mentor: Đurđica Pezelj (mentor)
• Committee member: Đurđica Pezelj (predsjednik povjerenstva)
• Committee member: Vlasta Ćosović (član povjerenstva)
• Committee member: Nenad Tomašić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2024-02-22, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract

Srednjoeocenske foraminiferske zajednice laporovitih naslaga lokaliteta Slani potok u Vinodolskoj dolini analizirane su u svrhu rekonstrukcije paleoekoloških uvjeta. Udio planktonskih foraminifera u zajednicama varira u rasponu 14 % - 28 % ukazujući na okoliš srednjeg šelfa, te lagani trend produbljavanja taložnog okoliša. Određena su 23 roda i 34 vrste malih bentičkih foraminifera. Unutar zajednica bentičkih foraminifera dominiraju foraminifere s perforatnom stijenkom i trohospiralnim oblikom kućice, a dominantne vrste su Cibicidoides sp. i Nuttallides truempyi NUTTALL. Visoka zastupljenost epifaunalnih oblika, kao i visoke vrijednosti indeksa kisika bentičkih foraminifera upućuju na oligotrofične uvjete na morskom dnu.

Abstract (english)

Middle Eocene foraminiferal assemblages from marly deposits at Slani Potok (Vinodol Valley) were analyzed to reconstruct paleoenvironmental conditions. The percentage of planktonic foraminifera varies between 14 % and 28 % indicating a middle shelf environment, and a slight deepening trend of the depositional environment. A total of 23 genera and 34 species of small benthic foraminifera were determined. The benthic assemblages are characterized by domination of calcareous (hyaline perforate wall) trochospiral genera. Dominant species are Cibicidoides sp. and Nuttallides truempyi NUTTALL. The high abundances of epifaunal taxa as well as the high values of Benthic Foraminifera Oxygen Index point to oligotrophic conditions at the see floor.

• Keywords: srednji eocen; foraminifere; Vinodolska dolina; Slani potok; lapori
• Keywords (english): Middle Eocene; Foraminifera; Vinodol Valley; Slani Potok; Marls
• Language: croatian
• URN:NBN: urn:nbn:hr:217:621456
• Project: Number: IP-2019-04-5775; Title: Dinaridski predgorski bazen između dva eocenska termalna optimuma: mogući scenarij za sjevernojadranski bazen; Title: Dinaridic foreland basin between two Eocene thermal optima: a possible scenario for the Northern Adriatic; Acronym: BREEMECO; Leader: Vlasta Ćosović; Jurisdiction: Croatia; Funder: Hrvatska zaklada za znanost; Funding stream: Research Projects
• Study programme: Title: Geology; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni magistar/magistra geologije (sveučilišni magistar/magistra geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-01-31 08:25:20