Eocenski vapnenci otoka Hvara: okoliši taloženja i starost naslaga

master's thesis

• Title (english): Eocene limestones from the island of Hvar: depositional setting and age attribution
• Author: Tamara Tudor
• Mentor: Vlasta Ćosović (mentor)
• Committee member: Vlasta Ćosović (predsjednik povjerenstva)
• Committee member: Đurđica Pezelj (član povjerenstva)
• Committee member: Nenad Tomašić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2023-09-22, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract

Na južnom i jugozapadnom dijelu otoka Hvara prikupljeni su uzorci eocenskih vapnenaca s ciljem rekonstrukcije okoliša taloženja. Napravljene su mikropaleontološke i mikrofacijesne analize. Metodom point countinga kvantitativno je opisan sastav vapnenaca. Na temelju udjela pojedinih vrsta zrna u preparatima, sastava zajednice velikih bentičkih foraminifera, određeno je pet mikrofacijesa, koji odgovaraju okolišu srednje rampe. Preklapanjem stratigrafskih raspona pojavljivanja određenih morfovrsta ortofragmina, dobivena je starost naslaga od mlađeg dijela starijeg luteta do starijeg priabona, te pripadnost zonama od SBZ13 do SBZ19, odnosno od OZ9 do OZ14.

Abstract (english)

In the southern and southwestern part of the island of Hvar, samples of Eocene limestones were collected to reconstruct the depositional conditions and settings. Micropaleontological and microfacial analyses were made. The composition of the limestone was quantitatively described using the point count method. Based on the proportion of each grain type in thin sections and composition of large benthic foraminiferal assemblages, five microfacies corresponding to the middle ramp environment were determined. By overlapping the stratigraphic ranges of certain Ortophragmina morphospecies, the age of the deposits was determined from the younger part of the late Lutetian to the Priabonian, for the zones from SBZ13 to SBZ19, i.e., from OZ9 to OZ14.

• Keywords: otok Hvar; velike bentičke foraminifere; Solenomeris; eocen; karbonatna rampa
• Keywords (english): island Hvar; large benthic foraminifera; Solenomeris; eocene; carbonate ramp
• Language: croatian
• URN:NBN: urn:nbn:hr:217:487837
• 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: 2025-01-30 08:58:57