THE INTRAMOESIAN FAULT: EVOLUTION IN TIME AND SPACE

• DOI: 10.5281/zenodo.5031426
• Publication Date: 2021-06-25
• Authors: Irina Stanciu; Dumitru Ioane
• Keywords: Intramoesian Fault, Moesian Platform, regional tectonics, regional geodynamics; 01 natural sciences; 0105 earth and related environmental sciences

The name Intramoesian Fault was introduced in the scientific literature by Mircea Săndulescu in 1984. Săndulescu (1984) described the fault as being a sinistral transcrustal fault, after several dextral–sinistral displacement variations during geological time. The fault was located in the central part of the Moesian Platform, displaying NW–SE direction; it was continued south of the Danube river up to the Bulgarian Black Sea shelf, and northward underneath the Getic Nappe. Although this is the most accepted model of the Intramoesian Fault, used by many researchers as marker for the Moesian Platform compartments delineation, the Intramoesian Fault proved to be a complex and complicated tectonic target both at local and regional scale (in Space), being differently located on maps throughout history (in Time). The geological mapping of the Intramoesian Fault was not possible, as it does not outcrop and has no topographic expression, being concealed beneath a thick Neogene sedimentary cover, traces of regional faulting being hidden totally. This intriguing tectonic structure, still subject of debate, had a large variety of names and was identified so far as fault, fracture or tectonic contact. An extended documentation on the Intramoesian Fault and the Moesian Platform was carried out within the PhD Thesis “Intramoesian Fault: geophysical detection and regional active (neo)tectonics and geodynamics”, Doctoral School of Geology, Faculty of Geology and Geophysics, University of Bucharest. This PhD study offered the framework for a focused research on geophysical detection of the Intramoesian Fault and its regional tectonics and geodynamics, analysing and integrating a large number of geophysical and geodetic data, as well as geomorphological and geological observations. An updated regional tectonic and geodynamic model was developed within this study, showing that the Intramoesian Fault is composed of a number of segments, laterally displaced by several active regional NE–SW, N–S and W–E faults systems. Due to repeated junctions with the younger NE–SW strike-slip faults, and due to a NE–SW transcurrent fault in the Vrancea wrench tectonics system (Ioane, Stanciu, 2018), the Intramoesian Fault is displaced south–westward in the area close to the Carpathians. North of the Danube, a north–eastward displacement of the Intramoesian Fault was interpreted as due to an indentation of an Argeş – Danube Promontory along the Argeş (W–E) and Gabrovo – Veliko Tarnovo (NE–SW) faults.<br/>{"references": ["AIRINEI, \u015eT., STOENESCU, S., VELCESCU, G., ROMANESCU, D., VISARION, M., R\u0102DAN, S., ROTH, M., BE\u015eU\u0162IU, L., BE\u015eU\u0162IU, G. (1983), Magnetic Anomalies Map (\u0394Za) of Romania, scale 1:1000000, Geological Institute of Romania, Bucharest (in Romanian).", "BOTOUCHAROV, N. (2016), Geology of the heavy oil in North Bulgaria \u2013 past, present and future use. Proceedings of the 2nd International Scientific Conference GEOBALCANICA 2016, pp. 185\u2013192, http://geobalcanica.org/wp-content/uploads/GBP/2016/GBP.2016.25.pdf", "BURCEA, C., CORNEA, I., \u0162UGUI, GR., IONESCU, E., TR\u00ceMBI\u0162A\u015e, M., GEORGESCU, ST., LEAFU, I., TOMESCU, L. (II), BRA\u015eOVEANU, AL., CHI\u015eCAN, M., LEAFU, F., MIH\u0102IL\u0102, S., SIPO\u015e, V. (1965), Seismics contributions on tectonic imaging of the northern margin of the Moesian Platform, between Olt and Buz\u0103u rivers. St. Cerc. Geol., Geofiz., Geogr., Seria Geofiz., Tome 3, No. 1, Bucharest, pp. 129\u2013139 (in Romanian).", "BURCEA, C., CORNEA, I., \u0162UGUI, GR., TOMESCU, L. (II), IONESCU, E., TR\u00ceMBI\u0162A\u015e, M., LEAFU, I., DUMITRESCU, V., BRA\u015eOVEANU, A., SIPO\u015e, V., LEAFU, F., M\u0102R\u0102\u015eESCU, M., CAZAN, E. (1966), Reflection seismic prospections contributions on tectonic imaging of the central area of the Moesian Platform. St. Cerc. Geol., Geofiz., Geogr., Seria Geofiz., Tome 4, No. 2, Bucharest, pp. 347\u2013353 (in Romanian).", "CALOT\u01cd, C., L\u01cdZ\u01cdRESCU, V., MOLDOVEANU, T., ZUGR\u01cdVESCU, D. (1988), Time variation of gravity on geodynamic polygons from Romania. St. Cerc. Geol., Geofiz., Geogr., Seria Geofiz., Tome 26, Bucharest, pp. 3\u201316 (in Romanian).", "CARAGEA, I., IOANE, D. (2015), Geophysical and geological detection of the Intramoesian Fault. Proceedings of GEO2015 Symposium (CD), Section Regional Geophysics and Geodynamics, Bucharest, 4 pp.", "CIOC\u00c2RDEL, R., SOCOLESCU, M., TEODORESCU, C. (1967), Fractures majeurs de l'ecorce terrestre dans le Domaine Carpato-Balkanique. Ass. Geol. Carp.-Balk., VIIIe Congres, Belgrad.", "CORNEA, I., POLONIC, G. (1979), Seismicity and seismotectonic data on the eastern part of the Moesian Platform. Stud. Cerc. Geol., Geofiz., Geogr., 17, 2 (in Romanian).", "DUCEA, M.N., ROBAN, R.D. (2016), Role played by strike-slip structures in the development of highly curved orogens: The Transcarpathian fault system, South Carpathians. Journal of Geology, 124 (4), pp. 519\u2013527, https://doi.org/10.1086/686271", "DUMITRESCU, I., S\u0102NDULESCU, M. (1962), Tectonic Map of Romania, 1:1000000, An. Com. Geol., Vol. XXXII, Geological Institute of Romania, Bucharest (in Romanian).", "DUMITRESCU, I., S\u0102NDULESCU, M. (1970), Tectonic Map of Romania, 1:1000000, Geological Atlas sheet no. 6, Geological Institute of Romania, Bucharest (in Romanian).", "DUMITRESCU, I., S\u0102NDULESCU, M., L\u0102Z\u0102RESCU, V., MIR\u0102U\u0162\u0102, O., PAULIUC, S., GEORGESCU, C. (1962), Memoire \u00e0 la carte tectonique de la Roumanie. An. Com. Geol., Vol. XXXII, Extras, Geological Institute of Romania, Bucharest.", "ENESCU, D., ENESCU, B.D. (1992), A new model regarding the subduction process in the Vrancea zone. XXIII General Assembly of the European Seismological Commission, Activity report 1990\u20131992 and Proceedings Volume II, Prague, pp. 278\u2013282.", "GAV\u0102T, I., AIRINEI, \u015e., BOTEZATU, R., SOCOLESCU, M., STOENESCU, S., VENCOV, I. (1939), Evolution, current state of knowledge, and new directions in geophysical research on the Romanian territory \u2013 The deep structural map of Romania, scale 1:1500000. An. Com. Geol., vol. XXXVI, Geological Institute of Romania.", "GAV\u0102T, I., AIRINEI, \u015e., BOTEZATU, R., SOCOLESCU, M., STOENESCU, S., VENCOV, I. (1974), La structure g\u00e9ologique profonde du territoire de la Republique Populaire Roumaine selon les donn\u00e9es actuelles g\u00e9ophysiques (gravimetriques et magnetiques). Bulletin du VIe Congr\u00e8s de l'Association G\u00e9ologique Carpatho-Balkanique, vol. II, 1, Geological Institute Warsaw, pp. 573\u2013582.", "IOANE, D., CARAGEA, I. (2015), Western Boundary of East European Platform in Romania as Interpreted on Gravity and Magnetic Data. Proceedings of the 8th Congress of the Balkan Geophysical Society, Greece, Chania, 5 pp., DOI: 10.3997/2214-4609.201414181. http://www.earthdoc.org/publication/publicationdetails/?publication=82890", "IOANE, D., STANCIU, I.M. (2018), Extensional tectonics in Vrancea zone (Romania) interpreted on recent seismicity, geophysical and GPS data. Proceedings of the 18th International Multidisciplinary Scientific GeoConference SGEM 2018, Bulgaria, Volume 18, Issue 1.1, Section Applied and Environmental Geophysics, pp. 939-946", "KOTZEV, V., NAKOV, R., BURCHFIEL, B.C., KING, R. (2002), NW Bulgaria \u2013 The Northern Boundary of the Aegean Extensional Domain. In: \u00c1d\u00e1m, J., Schwarz, K.P. (Eds.), Vistas for Geodesy in the New Millennium. International Association of Geodesy Symposia, Springer, Berlin, vol. 125, pp. 501\u2013505, https://doi.org/10.1007/978-3-662-04709-5_84", "MRAZEC, L., POPESCU-VOITE\u015eTI, I. (1911), Esquisse tectonique des Carpathes Meridionales et Orientales, Echelle 1:2000000, An. Inst. Geol., vol. 5.", "MUTIHAC, V. (1982), Structural geological units and distribution of useful mineral substances in Romania. Didactic and Educational Publishing House, Bucharest, 203 pp.", "OCZLON, M.S., SEGHEDI, A., CARRIGAN, C.W. (2007), Avalonian and Baltican terranes in the Moesian Platform (southern Europe, Romania, and Bulgaria) in the context of Caledonian terranes along the southwestern margin of the East European craton. In: Linnemann, U., Nance, R.D., Kraft, P., Zulauf, G. Irina Stanciu 70 and Dumitru Ioane 22 (Eds.), The evolution of the Rheic Ocean: From Avalonian-Cadomian active margin to Alleghenian-Variscan collision. Geological Society of America, Special Paper 423, pp. 375\u2013400, doi: 10.1130/ 2007.2423(18)", "PARASCHIV, D. (1975), Romanian hydrocarbon reservoirs geology. Inst. Geol. Geofiz., Stud. Tehn. Econ., A, 10, Bucharest, 327 pp. (in Romanian).", "PARASCHIV, D. (1979), The Moesian Platform and its Hydrocarbon Reservoirs. Romanian Academy Publishing House, Bucharest, 196 pp. (in Romanian).", "POPESCU, M., P\u0102TRU\u0162, I., PARASCHIV, D. (1967), The current state of knowledge of the Moesian Platform on the Romanian territory. Oil and Gas Magazine, 1, pp. 6\u201315.", "R\u0102B\u0102GIA, T., T\u0102R\u0102POANC\u0102, M., SMITH, R. (2000), Neotectonics of the Moesian Platform \u2013 seismic implications. SEG/SRG 2000 PPT presentation, Bucharest, http://www.danubianenergy.com/publications/Prezentari/Neotectonics%20of%20the%20Moesian%20Platform-Seismic%20Implications2000.pdf", "R\u0102DULESCU, D.P., CORNEA, I., S\u0102NDULESCU, M., CONSTANTINESCU, P., R\u0102DULESCU, F., POMPILIAN, A. (1976), Structure de la cro\u00fbte terrestre en Roumanie \u2013 Essa\u00ef d\u00b4interpr\u00e9tation sismiques profonds, An. Inst. Geol. Geof., Bucharest, 50, pp. 5\u201336.", "ROGOZHIN, E.A., KHARAZOVA, YU.V., GORBATIKOV, A.V., SHANOV, S., STEPANOVA, M.YU., MITEV, A. (2009), The Structure and Contemporary Activity of the Intramoesian Fault in Northeastern Bulgaria Obtained through a Complex of New Geological-Geophysical Methods, Izvestiya, Physics of the Solid Earth, vol. 45, No. 9, pp. 794\u2013801.", "S\u0102NDULESCU, M. (1974), The Romanian Foreland. In: Tectonics of the Carpathian Balkan Regions, Platforms of the Foreland. Geological Institute of Dionyz Stur, Bratislava, pp. 446-449.", "S\u0102NDULESCU, M. (1984), Geotectonics of Romania. Technical Publishing House, Bucharest, 450 pp. (in Romanian).", "S\u0102NDULESCU, M. (2009), The Geotectonic framework of a peculiar seismogenic area \u2013 the Vrancea seismic zone (Romanian Carpathians). Proc. Rom. Acad., Series B, 2\u20133, pp. 151\u2013157, https://acad.ro/sectii2002/ proceed-ingsChemistry/doc2009-23/art10Sandulescu.pdf", "SHANOV, S., BOYCOVA, A., MITEV, A. (2005), Intramoesian Fault on Bulgarian territory: available geophysical data. 4th Congress of the Balkan Geophysical Society, 9\u201312 October 2005, Bucharest, Romania, Journal of the Balkan Geophysical Society, Vol. 8, Suppl. 1, pp. 56\u201359.", "SOCOLESCU, M., POPOVICI, D., VISARION, M., RO\u015eCA, V. (1974), Considerations gravimetriques sur la structure des Carpathes dans la Republique Populaire Roumaine, Bulletin du VIe Congres de l'Assosiation Geologique Carpatho-Balkanique, volume II, 1, Geological Institute Warsaw, pp. 583\u2013591.", "STANCIU, I., IOANE, D. (2016), Geophysical Detection of the Intramoesian Fault in Romania, Petroleum Systems of Alpine \u2013 Mediterranean Fold Belts and Basins. AAPG European Regional Conference & Exhibition, Abstract Book, Bucharest, pp. 95\u201396.", "STANCIU, I., IOANE, D., DIMITRIU, R.G. (2016), The Intramoesian Fault as interpreted on geophysical, Hg spectrometry and seismicity data. Proceedings of the 16th International Multidisciplinary Scientific GeoConference SGEM 2016, Albena, Bulgaria, Book 1, vol. 3, pp. 639\u2013646.", "STANCIU, I.M. (2020), Intramoesian Fault: geophysical detection and regional active (neo)tectonics and geodynamics. PhD Thesis, University of Bucharest, Faculty of Geology and Geophysics (unpublished).", "STANCIU, I.M., IOANE, D. (2017a), Regional seismicity in the Moesian Platform and the Intramoesian Fault. GEOECOMARINA, 23, pp. 263\u2013271.", "STANCIU, I.M., IOANE, D. (2017b), On the Seismicity, Geodynamics and Neotectonics of the Moesian Platform. GEOSCIENCE 2017, Abstracts Volume (CD), Bucharest.", "STANCIU, I.M., IOANE, D. (2018a), The Intramoesian Fault: tectonic contact at crustal and lithospheric depths. XXI International Congress of the CBGA, Salzburg, Austria, Abstracts Book, pp. 254.", "STANCIU, I.M., IOANE, D. (2018b), The Intramoesian Fault: tectonic contact at crustal and lithospheric depths? GEOSCIENCE 2018, Abstracts Volume.", "STANCIU, I.M., IOANE, D. (2019), Seismicity associated to the Intramoesian Fault: inferences from regional tectonics and geodynamics. 19th International Multidisciplinary Scientific GeoConference on Earth & Geosciences SGEM-2019, Conference Proceedings, vol. 19, Issue 1.1, pp. 923\u2013930, DOI:10.5593/sgem 2019/1.1/ S05.114", "STELEA, I. (2017), Intramoesian Fault in the F\u0103g\u0103ra\u015f Mountains area. Studii \u015fi comunic\u0103ri, \u015etiin\u0163ele Naturii, tom 33, no. 2, Oltenia Museum \u2013 Craiova, ISSN 1454\u20136914, pp. 7\u201312.", "T\u0102R\u0102POANC\u0102, M. (1996), Intramoesian Fault Tectonics. MSc Thesis, University of Bucharest, Faculty of Geology and Geophysics, 45 pp. (unpublished, in Romanian).", "T\u0102R\u0102POANC\u0102, M. (2004), Arhitecture, 3D geometry and tectonic evolution of the Carpathians foreland basin. PhD Thesis, Netherlands Research School of Sedimentary Geology (NSG), Vrije University, Amsterdam, 119 pp.", "VISARION, M., BE\u015eU\u0162IU, L. (2001), Transcrustal faults on the Romanian territory. St. Cerc. Geofiz., Tome 39, Bucharest, pp. 15\u201333.", "VISARION, M., S\u0102NDULESCU, M., ST\u0102NIC\u0102, D., VELICIU, S. (1988), Contributions \u00e0 la connaissance de la structure profonde de la plateforme Mo\u00e9sienne en Roumanie. St. Tehn. Econ., (Geofizic\u0103), 15, pp. 68\u201392.", "ZUGR\u0102VESCU, D., DAMIAN, A. (2006), Observations on the Fierbin\u0163i \u2013 Intramoesian Fault and its neotectonics. St. Cerc. Geofizic\u0103, 44, Bucharest, pp. 3\u201316, (in Romanian)."]}<br/>