NEW LOCATION OF TRACE FOSSILS IN THE MIDDLE EOCENE (LUTETIAN) VOLCANOGENIC-SEDIMENTARY SERIES OF THE ACHARA-TRIALETI FOLD-AND-THRUST BELT (GEORGIA): PRELIMINARY STUDY RESULTS

Zurab Lebanidze; Alfred Uchman; Tamar Beridze; Rusudan Chagelishvili; Koba Lobzhanidze; Nino Kobakhidze; Sophio Khutsishvili; Davit Makadze; Nino Khundadze

doi:10.52340/pajig.2024.136.07

Authors

Zurab Lebanidze Tbilisi State University https://orcid.org/0000-0002-6281-1162
Alfred Uchman Jagiellonian University https://orcid.org/0000-0002-0591-777X
Tamar Beridze Tbilisi State University https://orcid.org/0000-0002-5142-2698
Rusudan Chagelishvili Georgian National Museum https://orcid.org/0000-0001-9567-8735
Koba Lobzhanidze Tbilisi State University https://orcid.org/0000-0003-0176-9703
Nino Kobakhidze Tbilisi State University https://orcid.org/0000-0002-3929-358X
Sophio Khutsishvili Tbilisi State University https://orcid.org/0000-0001-6180-5273
Davit Makadze Tbilisi State University https://orcid.org/0000-0002-5473-7046
Nino Khundadze Tbilisi State University https://orcid.org/0000-0002-1637-7924

DOI:

https://doi.org/10.52340/pajig.2024.136.07

Keywords:

Achara-Trialeti Fold-and-Thrust belt, middle Eocene, trace fossils

Abstract

Within the Borjomi canyon (the central part of the Achara-Trialeti Fold-and-Thrust Belt), one new section containing trace fossils – the Ardagani 4 section has been investigated. The examined for the first time trace fossil assemblage is closest to the Nereites ichnosubfacies of the Nereites ichnofacies, which is typical of mud- and silt-rich sediments in the distal part of deep-sea turbidite depositional systems (outer fan). The analysis of trace fossil assemblage and sedimentological features of the Ardagani 4 section suggests that the sediments of the lower part of the middle Eocene (Lutetian) of the Borjomi canyon reflect the environment of deep sea sedimentation by bottom currents. Within the Achara-Trialeti extentional basin, the existing Paleocene-lower Eocene turbidite sedimentary environment was preserved even at the beginning of the Middle Eocene.

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Author Biographies

Zurab Lebanidze, Tbilisi State University

Doctor of Geological-Mineralogical Sciences, Associate Professor of Department of Geology of Faculty of Exact and Natural Sciences of Ivane Javakhishvili Tbilisi State University.

Alfred Uchman, Jagiellonian University

Full professor at the Institute of Geological Sciences, Jagiellonian University, Kraków, Poland.

Tamar Beridze, Tbilisi State University

PhD student, Research scientist of Department of Volcanology and Mineral Resources of Alexandre Janelidze Institute of Geology of Iv. Javakhishvili Tbilisi State University.

Rusudan Chagelishvili, Georgian National Museum

Candidate of Geologic-Mineralogical Sciences, Chief curator of Geological and Paleontological collections of Georgian National Museum.

Koba Lobzhanidze, Tbilisi State University

Master of geology, Research scientist of Department of Volcanology and Mineral Resources Geology of Alexandre Janelidze Institute of Geology of Ivane Javakhishvili Tbilisi State University.

Nino Kobakhidze, Tbilisi State University

PhD student, Research scientist of Department of Petrology, Mineralogy, Geochemistry and Lithology of Alexandre Janelidze Institute of Geology of Ivane Javakhishvili Tbilisi State University.

Sophio Khutsishvili, Tbilisi State University

Master of geology, Research scientist of Department of Stratigraphy and paleontology of Alexandre Janelidze Institute of Geology of Ivane Javakhishvili Tbilisi State University.

Davit Makadze, Tbilisi State University

PhD student, Leading Engineer of Research department of solid minerals of Caucasian Aleksandre Tvalchrelidze Institute of Mineral Resources of Iv. Javakhishvili Tbilisi State University.

Nino Khundadze, Tbilisi State University

Master/MS, Research scientist of Scientific-Research Department of Geoecology and Applied Geochemistry of Caucasian Aleksandre Tvalchrelidze Institute of Mineral Resources of Iv. Javakhishvili Tbilisi State University.

References

Adamia Sh. (ED). (2004). Geological Map of Georgia 1: 500,000. Tbilisi, Georgia. Department of Geology, Nodia Institute of Geophysics.

http://www.ig-geophysics.ge/Georgia_Geology_1.jpg.

Adamia Sh., Chkhotua T., Gavtadze T., Lebanidze Z., Lursmanashvili N., Sadradze N., Zakaraia D., Zakariadze G. (2015). Tectonic setting of Georgia – eastern Black Sea: a review. In: Sosson M., Stephenson R., Adamia S. (Eds). Tectonic Evolution of the Eastern Black Sea and Caucasus //Geological Society, London, Special Publications, 428, pp. 10-40.

Adamia Sh., Sadradze N., Alania V., Talakhadze G., Khmaladze K., Sadradze G. (2022). Geology and Geodynamics of the Lithosphere of Georgia; 1:200000-scale Digital Geological Map and Explanatory Note of Georgia. Ivane Javakhishvili Tbilisi State University, Mikheil Nodia Institute of Geophysics, Proceedings, vol. LXXIV, pp. 1-169.

Adamia Sh., Sadradze N., Zakaraia D., Tsereteli N., Zakariadze G., Migineishvili R. (2013). Gudauri-Mtskheta-Borjomi-Tbilisi. In: Tectonic Evolution of the Eastern Black Sea and Cauca¬sus//Field Guide: June 26-29. Darius Program, pp. 77-85.

Adamia Sh., Zakariadze G., Lordkipanidze M., Salukvadze G. (1974). The geological structure of Achara. In: Gamkrelidze, P., Rubinshtein, M. (Eds). Problems of the Geology of the Achara-Trialeti//Proceedings of the Geological Institute of the Academy of Scinces of the GSSR. “Metsniereba”, Tbilisi, 44, pp. 60-69 (in Russian).

Alania V., Beridze T., Enukidze O., Chagelishvili R., Lebanidze Z., Maqadze D., Razmadze A., Sad¬radze N., Tevzadze N. (2021). The geometry of the two orogens convergence and collision zones in Central Georgia: new data from seismic reflection profiles. In: Bonali F., Mariotto F., Tsereteli N. (Eds.). Building Knowledge for Geohazard Assessment and Management in the Caucasus and other Orogenic Regions//NATO Science for Peace and Security, Series C: Envi¬ron¬mental Security, Springer, Dordrecht, pp. 73-88.

Alania V., Chabukiani A., Chagelishvili R., Enukidze O., Gogrichiani K., Razmadze A., Tsereteli N. (2017). Growth structures, piggyback basins and growth strata of Georgian part of Kura foreland fold and thrust belt: implication for Late Alpine kinematic evolu-tion//Geological Society, London, Special Publications 428, pp. 171-185.

Banks C., Robinson A., Williams M. (1997). Structure and regional tectonics of the Achara-Trialeti fold belt and the adjacent Rioni and Kartli foreland basins. Republic of Georgia. In: Robinson, A.G. (Ed.). Regional and Petroleum Geology of the Black Sea and Surrounding Region//AAPG Memoir. 68, pp. 331-346.

Beradze R., Gamrekeli G., Bandzava D., Kavtaradze S., Areshidze R., Labadze I., Zhgenti A., Geguchadze L., Lebanidze Z., Sabanadze M., Sagiridze L. (1985). Report (#16838) of the Trialeti geological-prospecting party about 1:25000 scale mapping within the sheets К-38-75-Б-в, г and К-38-75-Г-а, б (the central part of the Achara-Trialeti economic region) on the basis of conducted works in 1982–1985// Geological-Geophysical expedition for regional exploration, Trialetian geological mapping party, Geological Department of the Ministry of Geology of the Georgian SSR, Tbilisi, 1-400. Catalogue of the geological fund of the National Agency of Mineral Resources, Georgia, pp. 1-400 (in Russian).

Beridze T., Lebanidze Z., Uchman A., Lobzhanidze K., Khutsishvili S., Chagelishvili R., Koba¬kh¬id¬ze N., Makadze D., Khundadze N., Koiava K. (2021). Ichnological-sedimentological indi¬¬ca¬tors of deep-sea environment in Lower Eocene deposits of the Borjomi region (Geor¬gia) // In: 35th Meeting of Sedimentology: Prague, Czech Republic 21–25 June 2021, Book of Abstracts (eds. Bábek O., Vodrážková S.), Palacký University of Olomouc, pp. 55-56.

Buatois L.A., Mángano M.G. (2011). Ichnology: Organism-substrate interactions in space and time. Cambridge University Press, Cambridge, pp. 1–358.

Corrado S., Gusmeo T., Schito A., Alania V., Enukidze O., Conventi E., Cavazza W. (2021) Validating far-field deformation styles from the Adjara-Trialeti fold-and-thrust belt to the Greater Caucasus (Georgia) through multi-proxy thermal maturity datasets. Marine and Petroleum Geology, 130: 105-141.

Gamkrelidze I., Lobzhanidze G. (1984). Geology of Central Adjara-Trialeti and the Problem of Borjomi Mineral Water//Proceedings of Geological Institute of Academy of Sciences of GSSR. 83, pp. 1-81 (in Russian).

Gamkrelidze P. (1949). Geological Structure of Achara-Thrialethi Fold System//Academy of Scinces of the GSSR, pp. 1-507 (in Russian).

Geology of the USSR. (1964). Gamkrelidze P. (ed). Georgian SSR., v. X, Moscow, Nedra Publisher, pp. 1–655 (In Russian.).

Gusmeo T., Cavazza C., Alania V., Enukidze O., Zattin M., Corrado S. (2021) Structural inver¬sion of back-arc basins - The Neogene Adjara-Trialeti fold-and-thrust belt (SW Georgia) as a far-field effect of the Arabia-Eurasia collision. Tectonophysics, 803: 228702.

Koiava V. (1988). Litology//TSU Publisher, pp. 1-591 (in Georgian).

KU Ichnology. Trace fossils. Invertebrate.

Lebanidze Z., Koiava K., Khutsishvili S., Chagelishvili R., Khundadze N., Beridze T. (2016). Trace Fossils in the Paleogene Deposits of Borjomi Area (the Central Segment of the Achara-Trialeti Fold and Thrust Belt, Georgia): Preliminary Data of Ichnological Studies. In: Baucon A., Neto de Carvalho., Rodrigues J. Ichnia 2016: Abstract Book //UNESCO Geopark Naturtejo/ International Ichnological Association, Castelo Branco, Portugal, pp. 42-43.

Lebanidze Z., Uchman A., Beridze T., Kobakhidze N., Lobzhanidze K., Makadze D., Khutsishvili S., Chagelishvili R., Koiava K., Khundadze N. (2023). Ichnofacies Interpretation of Trace Fossils Occurrences in the Paleocene-Lower Eocene Deposits of the Borjomi Canyon//Bulletin of the Georgian National Academy of Sciences 17, N3, pp. 49-54.

Lordkipanidze, M. 1980. Alpine volcanism and geodynamics of the central segment of the Mediterranean belt. Proceedings of A. Janelidze Geol. Inst. of Academy of Sciences of GSSR, 69, pp. 1–162 (in Russian).

Lordkipanidze M., Meliksetian B., Djarbashian R. (1989). Mesozoic-Cenozoic magmatic evolu¬tion of the Pontian Crimean-Caucasian region//Mem. Soc. Géol. France. 154, pp. 103–124.

Nadareishvili G. (1999). Cretaceous volcanic formations of Georgia. Proceedings of A. Janelidze Geological Institute of Academy of Scinces of Georgia, 114, pp. 79-194 (In Russian.).

Obruchev S. (1923). Geological outline of the Borjomi region//Proceedings of Institute of Applied Mineralogy and Petrography 1, pp. 1–104 (In Russian).

Seilacher A. (1974). Flysch trace fossils: evolution of behavioural diversity in the deepsea. Neues Jahrb. Geol. Paläont. Monatsh pp. 233–245.

Sosson M., Stephenson S., Sheremet Y., Rolland Y., Adamia S., Melkonian R., Kangarli T., Yego¬rova T., Avagyan A., Galoyan G., Danelian T., Hässig M., Meijers M., Müller C., Saha¬kyan L., Sadradze N., Alania V., Enukidze O., Mosar J. (2016). The Eastern Black Sea-Cauca¬sus region during Cretaceous: new evidence to constrain its tectonic evolution. Compte-Rendus Geosciences, 348, pp. 23–32.

Tari G., Vrsic A., Gumpenberger T., Mekonnen E., Hujer W., Fallah M., Tevzadze N., Jania¬sh¬vili A., Pace P., Ricciato A., Alania V., Enukidze O. (2021) Eocene volcaniclastic re¬ser¬voir rocks in the Kartli Basin, Georgia: a fractured reservoir sequence. Journal of Petro¬leum Geology 44, pp. 413–434.

Uchman A. (2008). Stop 8, Zbludza, Beloveža Formation (Eocene) and Bystrica Formation (Eocene): Outer fan ichnology and sequential colonization of turbidites. In: Pieńkowski, G. & Uchman, A. (Eds), The Second International Congress on Ichnology, Cracow, Ichnolo¬gi¬cal sites of Poland: The Holy Cross Mountains and the Carpathian Flysch, The Pre-congress and Post-congress Field Trip Guidebook. Polish Geological Institute, Warsaw, pp.124–131.

Uchman A., Rattazzi B. (2011). The new complex helical trace fossil Avetoichnus luisae igen. n. et isp. n. from the Cainozoic deep-sea sediments of the Alpine realm: a non-graphoglyptid mid-tier agrichnion. Neues Jahrbuch für Geologie und Paläontologie – Abhandlungen, Band 260, Heft 3, pp. 319–330.

Uchman A., Wetzel A. (2012). Deep-sea fans. In: Bromley, R.G., Knaust, D. (Eds.), Trace fossils as indicators of sedimentary environments. Dev. Sedimentol, 64, pp. 643–671.

Uchman, A., Lebanidze, Z., Beridze, T., Kobakhidze, N., Lobzhanidze, K., Khutsishvili, S., Chage¬li¬sh¬vili, R., Makadze, D., Koiava, K., Khundadze, N. (2020). Abundant trace fossil Polykampton in Paleogene deep-sea flysch deposits of the Lesser Caucasus in Georgia: palaeoecological and paleoenvironmental implications. Palaeogeography, Palaeoclimatology, Palaeoecology 558: 109958.

Yilmaz A, Engin T., Adamia S., Lazarashvili T. (Eds.). (2001). Geological Studies of the Area Along Turkish-Georgian Border//Mineral Reseaarch and Exploration Institute (MTA) of Turkey, Ankara, 388 p.

Zakariadze G., Dilek Y., Adamia S., Oberhänsli R., Karpenko S., Bazylev B., Solov’eva N. (2007). Geochemistry and geochronology of the Neoproterozoic Pan-African Transcaucasian Massif (Republic of Georgia) and implications for island-arc evolution of the late Precam¬b¬rian Arabian–Nubian Shield//Gondwana Research 11, pp. 92–108.

Zakariadze G., Karamata S., Korikovsky S., Ariskin A., Adamia S., Chkhotua T., Sergeev S., Solov’eva N. (2012). The Early-Middle Paleozoic oceanic events along the southern European margin: The Deli Jovan Ophiolite Massif (NE Serbia) and paleooceanic zones of the Great Caucasus//Turkish Journal of Earth Sciences 21, pp. 635–668.