Larger benthic foraminifera as an important tool for palaeoenvironmental interpretation of Campanian inner platform settings, island of Brač (Croatia)

Znanstveni rad - Sažetak

• Autor: Blanka Cvetko Tešović
• Autor: Felix Schlagintweit
• Autor: Maja Martinuš
• Autor: Igor Vlahović
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Geološki odsjek)
• Autorova ustanova: Sveučilište u Zagrebu; Rudarsko-geološko-naftni fakultet; (Zavod za geologiju i geološko inženjerstvo)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Geologija

Sažetak (engleski)

The informal group of larger benthic foraminifera (LBF) generally exhibits a high potential for biostratigraphy, palaeoenvironmental interpretations, and palaeobiogeographic comparisons in Tethys, especially during the Cretaceous greenhouse period. Late Cretaceous Global Community Maturation Cycle (GCMC) encompasses the Turonian‒Maastrichtian interval representing a special period of increasing diversity of LBF in shallow water settings. The LBF suffered from the palaeoenvironmental distributions associated with the Cenomanian‒Turonian boundary OAE2 event leading to the almost complete extinction. During the Coniacian‒Santonian, LBF already underwent a remarkable diversification in a wider area of Tethys associated with widely distributed extensive platform carbonate evolution. From Campanian inner platform facies, numerous taxa of LBF have been reported from Spain, Greece and Croatian island of Brač. Shallow-marine carbonate platform deposition on Brač represents an essential contribution to understanding Late Cretaceous evolution of one of the best preserved Mesozoic Perimediterranean carbonate platforms with especially favourable conditions for the development of LFB in Campanian (Gornji Humac and Pučišća fms) as a consequence of gradual progradation of platform environments over hemipelagic Dol fm resulted in diachronous upper boundary. Platform progradation resulted in establishment of shallow-marine environments progressively covering larger areas until the final covering of the Brač Marbles mb: Rasotica and Lovrečina mbrs of Pučišća fm that merged with the Gornji Humac fm. Such complexity of very different lithofacies enabled Campanian assemblages to be most diversified. Ongoing studies have revealed additional four new taxa (one new genus) of LBF described from lower–middle Campanian carbonates of the island of Brač, Croatia, two of them are also reported from time-equivalent strata of the Gavrovo–Tripolitza Platform (SW Greece), while providing further evidence for the pronounced Campanian diversification within the Late Cretaceous GCMC of AdCP.

• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Sažetak
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov zbornika: Abstracts book / 36th International Meeting of Sedimentology
• Brojčani podaci: str. 52
• ISBN: 978-953-6907-79-3
• URN:NBN: urn:nbn:hr:169:543215
• Datum objave publikacije: 2023
• Skup: Naziv: 36th International Meeting of Sedimentology; Kratica: IAS; Lokacija: Dubrovnik, Hrvatska; Organizator: Croatian Geological Society (HGD); Organizator: International Association of Sedimentologists (IAS); Datum početka: 2023-06-12; Datum završetka: 2023-06-16; Vrsta izlaganja: Predavanje
• Vrsta resursa: Tekst
• Izdavač: Croatian Geological Society (HGD)
• Mjesto izdavanja: Zagreb
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2023-06-19 08:40:12