Ichnological - Sedimentological Studies of Upper Cretaceous Sediments of the River Aragvi Basin: Preliminary Results

Author: Zurab Lebanidze
Co-authors: Giorgi Chankvetadze, Tamara Beridze, Sophio Khutsishvili
Keywords: : Campanian, Maastrichtian, Granular Limestones, Trace Fossils, Ichofacies
Annotation:

The study area is located within northern part of the Zhinvali-Gombori structural-morfological unit of the Southern Slope zone of the Great Caucasus fold-thrust belt. Preliminarily defined by the authors ichnocomplex in the Campanian-Maastrichtian deposits of the river Aragvi basin: Chondrites intricatus (Brongniart), Ch. targionii (Brongniart), Ch. affinis (Brongniart), Halopoa imbricata Torell, Helminthopsis isp., Megagrapton isp., Ophiomorpha annulata (Ksiᶏżkiewicz), Oph. rudis (Ksiᶏżkiewicz), Planolites isp, Protopaleodictyon isp., Scolicia strozzii (Savi & Meneghini), Spirorhaphe isp.,Thalassinoides isp., Trichichnus linearis Frey, Zoophycos isp. - refers to deep sea Nereites ichnofacies. According to Santonian-Maastrichtian facies distribution and paleogeographic map (Tsagareli A.,1954, fig.33) during the Late Senonian northern part of Zhinvali-Gombori structural-morfological unit represented deep marine depositional environment emerged with turbidite accumulation. The preliminary results of our paleoichnological studies completely match with this assumption.

Lecture files:

მდინარე არაგვის აუზის ზედაცარცული ნალექების იქნოლოგიურ-სედიმენტოლოგიური კვლევა : წინასწარი შედეგები [ka]
Ichnological - Sedimentological Studies of Upper Cretaceous Sediments of the River Aragvi Basin: Preliminary Results [en]