Naslov
The Upper Cretaceous-Paleogene Carbonate Sediments in Well Istra More-5 (northern Adriatic, Croatia)

Autori
Veseli, Vladimir ; Dmitrović, Zorana ; Stanković, Damir ; Slavković, Renata

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
The role of impact processes in the geological and biological evolution of planet Earth - Abstracts / Drobne Katica, Goričan Špela, Kotnik Barbara - Ljubljana : Znanstvenoreziskovalni center SAZU, 1996, 93-94

Skup
International Workshop: The role of impact processes in the geological and biological evolution of planet Earth

Mjesto i datum
Postojna, Slovenija, 27.09.1996. - 02.10.1996

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
Deep-marine sediments; Paleocene-Lower Eocene; Maastrichtian; Large benthic foraminifers; Northern Adriatic

Sažetak
The wildcat well Istra More-5 is located in the northern Adriatic, northwest of Pula. Lower Eocene and Paleocene deep-marine sediments have been bored in the interval 1725-1770 m. Drilling was stopped at depth of 1880 m in the Maastrichtian deep-marine pelagic micrites and bioclastic fine-grained calcarenites. Pelagic micrites contain variable amount of fragment of rudists, echinoderms, large benthic and numerous planktonic forams and bioclastic fine-grained calcarenites mostly fragments of rudists, benthic forams, ehinoderms, corallina algae. The Maastrichtian limestones were deposited in region distal to source of the material, i. e. lower slope - basin. The Paleocene - Lower Eocene are composed of clayey limestone (micrite with numerous small planctonic foraminifers) with laminae and intercalatins of allochthonous bioclastic limestones formed by turbidite flows on the distally area of lower slope or in the basin plain. SEM analyses show that laminae of clay are illite-chlorite association with includes accumulations of cryptocrystalline dolomite, calcite, neutral plagioclase, flaky chlorite, muscovite and sporadically nannoplanctons.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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