Naslov
Rudist mud mounds and biostromes from Upper Cre- taceous of Istria (Croatia)

Autori
Moro, Alan ; Tarlao, Alceo ; Tunis, Giorgio

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Izvornik
Conference Program 1st Conference of the Arabian Journal of Geosciences / - Hammamet : Springer, 2018, 122-122

Skup
1st Coference of the Arabian Journal of Geosciences

Mjesto i datum
Hammamet, Tunis, 12.11.2018. - 15.11.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Rudists, Mud mound, Biostrome, Upper Cretaceous, Istria, Croatia

Sažetak
Beside biostromes which are the most common paleoenviromental appearance of rudist congregations, in Upper Cretaceous of Istria rare rudist mud-mounds were investigated. Aim of this work is to present appearance of rudist congregations with respect to the lithofaces characteristics of paleoenvironment. Rudist congregations, which could appear within both mud mounds and biostromes in relatively shallow subtidal are result of interaction between accommodation space adequate for thriving of radiolitids and carbonate sedimentation rate. Shallowing and decrease of accommodation space are indicated in mud mounds by thin sheets of densely packed F-R with fragments of radiolitids at the top of beds, together with mud mound flanks which are visible as lamination. In case when radiolitid congregations throve in shallower subtidal paleoenvironment with less accommodation space they appear through biostromes.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

POVEZANOST RADA