Isotopic constraints for identification and correlation of the pre-Alpine Carpathian-Balkan
terranes-Zircon U/Pb, Lu/Hf, and whole rock Sm/Nd methods
PN II - Program Idei
Project manager: Prof. dr. Ioan Coriolan BALINTONI
Department of Geology/Babes-Bolyai University Cluj Napoca
1. Pre-Alpine terranes identification;
2. Pre-Alpine terranes provenance;
3. Pre-Alpine terranes correlation;
4. Specification of Cadomian Caledonian and Variscan thermotectonic events;
5. Docking times to Baltica or Moesia.
During the late Neoproterozoic, subduction and associated orogenic processes were common at the periphery of Gondwana and the main orogen formed along its Northern margin is known as the Avalonian-Cadomian tectonostratigraphic belt (Murphy and Nance, 1989, 1991; Murphy et al., 2006, 2010). Starting with the latest Neoproterozoic time and continuing throughout the Paleozoic, the Gondwana margin, including the Avalonian-Cadomian orogen, dismembered and the resulted fragments were incorporated into the Caledonian and Variscan belts of North and Central Americas and Europe (e.g. Neubauer, 2002; Stampfli and Kozur, 2006; Nance et al., 2010). To decipher the intricate history of these crustal fragments in terms of their origin and migration time and paths, magmatic and detrital zircons U/Pb geochronology, as well as Sm/Nd isotopic signatures have been widely utilized. Accordingly, different types of peri-Gondwanan terranes were distinguished. The Cadomian terranes were associated with the West African part of Gondwana during Neoproterozoic and early Paleozoic and developed upon older basement than the Avalonian terranes. The latter developed on relatively newly formed crust in the vicinity of the Amazonian craton (e.g. Nance and Murphy, 1994, 1996; Finger et al., 2000; Murphy and Nance, 2002; Linnemann et al., 2004, 2007). Isotopic data for Eastern Mediterranean terranes are different from both the Avalonian and Cadomian signatures, as they show affinities to the Arabian-Nubian Shield. For this reason Zulauf et al. (2007) coined the term Minoan terranes for the terranes with these particular isotopic signatures. Such terranes were also identified in Romanian Carpathians by Balintoni et al. (2009). The project theme was chosen to address the following questions in the Southeastern Europe: a) How many pre-Alpine terranes are present in the Carpathians and Balkans basements? b) What is their provenance? c) What is the docking timing to Baltica, Moesia or Laurussia? d) How were the Cadomian, Caledonian and Variscan thermotectonic events recorded in the terranes' geological history? e) Is there any correlation that can be made between the pre-Alpine terranes along the Alpine Carpathian-Balkan orogen? f) Are there any identifiable remnants of the Tornquist, Rheic, and Paleothetys oceans in this region? Except for the Northern Greece and to some extent Romanian Carpathians, all the answers to the above questions will represent geological novelties.
Prof. Dr. Ioan Coriolan Balintoni - project manager
Asist Dr. Constantin Balica - senior researcher
Prof. Dr. Vlad Codrea - senior researcher
PhD stud. Cosmin Stremtan - young researcher
Major achievements of the project:
Provenance of the Carpathian basement
Southward corelatives of the Carpathian basement
Main pre-Alpine orogenetic events that generated and/or deformed the Carpathian basement
Balintoni, I., Balica, C., Ducea, M., Stremtan, C., 2011. Peri-Amazonian, Avalonian-type and Ganderian-type terranes in the South Carpathians, Romania: The Danubian domain basement Gondwana Research 19, 945-957.
Balintoni, I., Balica, C., Hann, H.P., 2011. About a peri-Gondwanan - North African enlarged acceptance of the Caledonian Orogeny. Studia Universitatis Babes-Bolyai, Geologia 56, 29-32.
Balintoni, I., Balica, C., Seghedi, A., Ducea, M.N., 2011. Peri-Amazonian provenance of the Central Dobrogea terrane (Romania) attested by U/Pb detrital zircon age patterns. Geologica Carpathica 62, 299-307.
Balintoni, I., Balica, C., 2012. Avalonian, Ganderian and East Cadomian terranes in South Carpathians, Romania, and Pan-African events recorded in their basement. Mineralogy and Petrology.
Zagorchev, I., Balica, C., Balintoni, I., Kozhoukharova, E., Sabau, G., Dimitrescu, R., Negulescu, E., 2012. Isotopic data on the age of the Krupnik granite pluton and its host rocks, Kresna horst, Krupnik Mountains, SW Bulgaria. Comptes Rendues de l'Academie Bulgare de Sciences 65, 977-984.
Balintoni, I., Balica, C., 2013. Carpathian peri-Gondwanan terranes in the East Carpathians (Romania): A testimony of an Ordovician, North-African orogeny. Gondwana Research 23, 1053-1070.
Balintoni, I, Balica C., Ducea, M. N., Hann H.P., 2014, Peri-Gondwanan terranes in the Romanian Carpathians: A review of their spatial distribution, origin, provenance, and evolution. Geoscience Frontiers, 5, 3, 395-411
Zagorchev, I., Balica, C., Balintoni, 2015. Repeated Crustal Melting and Ductile Flow: Possible Major Mechanisms of Rhodope Evolution. Comptes Rendues de l'Academie Bulgare de Sciences 68, 11, 1403-1416.
Zagorchev, I., Balica, C., Kozhoukharova, E., Balintoni, I. C., Sabau, I., Negulescu, E., 2015. Cadomian and post-Cadomian tectonics west of the Rhodope Massif - The Frolosh greenstone belt and the Ograzhdenian supercomplex, Geologica Macedonica, 29, 2, 101-132
Balintoni, I, Balica C., 2016, Peri-Amazonian provenance of the Euxinic Craton components in Dobrogea and of the North Dobrogean Orogen components (Romania): A detrital zircon study. Precambrian Research 278, 34-51
International scientific meetings and congressess
Campeanu, M. Balica, C., Stremtan, C., Balintoni, I., 2012. AGE OF POST - COLLISIONAL EVENTS I N THE DANUBIAN DOMAI N (SOUTH CARPATHIANS, ROMANIA ): MOTRU DYKE SWARM. Acta Mineralogica - Petrographica, Abstract Series, Szeged, Vol. 7, 2012
Balica, C., Balintoni, I., 2012. PERI-GONDWANAN CARPATHIAN TERRANES (ROMANIA): HOW MANY PALEOZOIC OCEANS IN BETWEEN? Abstract T23B-2677. Presented at 2012 Fall Meeting, AGU, San Francisco, Calif., 3-7 Dec.
Stremtan, C., Campeanu, M., Balica, C., Ryan G. J., Savov, I. P., Balintoni, I., 2012, Post-collisional magmatism associated with Variscan orogeny in the Danubian Domain (Romanian Southern Carpathians): the Motru Dyke Swarm. Abstract V11D-2791,Presented at 2012 Fall Meeting, AGU, San Francisco, Calif., 3-7 Dec
2013, EGU General Assembly, May 02-07 2010 Vienna
Balica, C., Balintoni, I., Seghedi, A., 2013. Gondwanan, peri-Amazonian terranes in North Dobrogea, Romania: Megina metamorphic sequence. Geophysical Research Abstracts, Vol. 15, EGU2013-11731-1, 2013.
Campeanu, M. Balica, C., Balintoni, I., Stremtan, C., 2013. Late Variscan postcollisional extensional events in the Danubian domain (Romania): the Motru Dyke System. Geophysical Research Abstracts, Vol. 15, EGU2013-12451-1, 2013.
Stremtan, C., Balica, C., Savov, I. P., Ryan G. J., Balintoni, I., 2013. The role of the mantle in Variscan post-collisional magmatism – insights from Muntele Mic and Culmea Cernei plutons (Romanian Southern Carpathians). Geophysical Research Abstracts, Vol. 15, EGU2013-10002, 2013.
2014, XX Congress of the Carpathian-Balkan Geological Association CBGA-2014, September 24-26 2014 Tirana, Albania
Balica, C., Balintoni, I., Berza, T., 2014. On the age of the Carpathian-Balkan pre-Alpine ophiolites. In: Beqiraj, A., Ionescu, C., Christofides, G, Uta, A., Beqiraj, G. E., Marku, S. (eds): Proceedings XX Congress of tha Carpathian-Balkan Geological Association, Special Issue, 1, 196-197.
Campeanu, M., Balica, C., Balintoni, I., 2014. Geochronology and emplacement conditions of the Motru Dyke System (South Carpathians, Romania). In: Beqiraj, A., Ionescu, C., Christofides, G, Uta, A., Beqiraj, G. E., Marku, S. (eds): Proceedings XX Congress of tha Carpathian-Balkan Geological Association, Special Issue, 1, 198-199.
Zagorchev, I. S., Balica, C., Bayanova, T. B., Kozhoukarova, E. S., Balintoni, I., Mitrofanov, T. P., Lyalina, B. V., Sabau, G, Negulescu, E., 2014. Precambrian metabasic relics in the Ograzhdenian supercomplex, Gorna Ribnitsa Village, Serbo-MAcedonian Massif, Southwest Bulgaria. In: Beqiraj, A., Ionescu, C., Christofides, G, Uta, A., Beqiraj, G. E., Marku, S. (eds): Proceedings XX Congress of tha Carpathian-Balkan Geological Association, Special Issue, 1, 224-227.
Balintoni, I., Balica, C., 2016. The Variscan history of the North Dobrogea Orogen. AAPG Europe Region Conference: Petroleum Systems of Alpine-Mediterranean Fold Belts and Basins – Abstract Book, 19-20 May 2016, Bucharest, Romania, p93.
2016, 8-th CAAWG, 1-7 Oct, Sibiu, Romania
Campeanu, M., Balica, C., Balintoni, I., Tanaselia, C., Cadar, O., 2016. REE Investigation of Motru Dyke Swarm components (South Carpathians, Romania). 8-th Confernce of the African Association of Women in Geosciences (CAAWG8), Sibiu, 1-7 Oct, 2016. Abstracts Volume, 38-39.