New Seismic and Tomography Data in the Southern Part of the Harghita Mountains (Romania, Southeastern Carpathians): Connection with Recent Volcanic Activity

Pure and Applied Geophysics

Volumn 169, Issue 9, 2012, Pages 1557-1573

  Popa, M ^a   Radulian, M ^a   Szakacs A ^b,c   Seghedi, I ^c   Zaharia, B ^a  

^a NATIONAL INSTITUTE FOR EARTH PHYSICS   (Romania)

^b SAPIENTIA HUNGARIAN UNIVERSITY OF TRANSYLVANIA   (Romania)

^c INSTITUTE OF GEODYNAMICS   (Romania)

Author keywords

asthenospheric ascent; mantle seismicity; Neogene volcanism; post collisional tectonics; volcanic hazard; Vrancea region

Indexed keywords

ASTHENOSPHERIC ASCENT; MANTLE SEISMICITY; NEO GENES; VOLCANIC HAZARDS; VRANCEA REGION;

GEODYNAMICS; SEISMOLOGY; TECTONICS; TOMOGRAPHY;

VOLCANOES;

CALC ALKALINE ROCK; EMPLACEMENT; GEODYNAMICS; MAGMA CHAMBER; MONITORING SYSTEM; NEOGENE; POTASSIUM-ARGON DATING; RADIOCARBON DATING; SEISMIC ATTENUATION; SEISMIC DATA; SEISMIC TOMOGRAPHY; TECTONIC SETTING; UPPER MANTLE; VOLCANIC ERUPTION;

CARPATHIANS; HARGHITA; HARGHITA MOUNTAINS; ROMANIA;

CALLUNA VULGARIS;

EID: 84865830229     PISSN: 00334553     EISSN: 14209136     Source Type: Journal    
DOI: 10.1007/s00024-011-0428-6     Document Type: Article

References (64)

1. ALTHAUS T., NIEDERMANN S. and ERZINGER J., 2000: Noble gas studies of fluids and gas exhalations in the East Carpathians, Romania. Chemie der Erde-Geochemistry 60 (3), 189-207.
2. BOCIN, A., STEPHENSON, R., TRYGGVASON, A., PANEA, I., MOCANU, V., HAUSER, F. and MAŢENCO, L., 2005: 2.5D seismic velocity modelling in the south-eastern Romanian Carpathians Orogen and its foreland, Tectonophysics 410, 273-291.
3. BOCIN, A., STEPHENSON, R., MOCANU, V. and MAŢENCO L., 2009: Architecture of the south-eastern Carpathians nappes and Focsani Basin (Romania) from 2D ray tracing of densely-spaced refraction data, Tectonophysics 476, 512-527.
4. BONJER, K.-P. and RIZESCU, M., 2000: Data Release 1996-1999 of the Vrancea K2 Seismic Network. Six CD's with evt-files and KMI v1-,v2-, v3-files. Karlsruhe-Bucharest, July 15, 2000.
5. BONJER, K.-P., ONCESCU, M.C., RIZESCU, M., ENESCU, D., DRIAD, L., RADULIAN, M., IONESCU, C., MOLDOVEANU, T., 2000: Source-and site-parameters of the April 28, 1999 intermediate depth Vrancea earthquake: First results from the new K2 network in Romania, XXVII General Assembly of the European Seismological Commission, Lisbon, Portugal, Book of Abstracts and Papers, SSA-213-O, p. 53.
6. BONJER, K.-P., RIZESCU, M. and GRECU, B., 2002: Data Release 2000-2001 of the Vrancea K2 Seismic Network. Two CD's (evtfiles). Bucharest-Karlsruhe, October 24, 2002.
7. DEMETRESCU, C. and ANDREESCU, M., 1994: On the thermal regime of some tectonic units in a continental collision environment in Romania. Tectonophysics 230, 265-276.
8. DINC, A.N., RABBEL, W., FLUEH, E.R. and TAYLOR, W., 2011: Mantle wedge hydration in Nicaragua from local earthquake tomography, Geophys. J. Int. 186, 99-112.
9. HARANGI, SZ, DOWNES, H. and SEGHEDI, I., 2006: Tertiary-Quaternary subduction processes and related magmatism in Europe. In: GEE, D.G. & STEPHENSON, R.A. (eds) European Lithosphere Dynamics. Geological Society London Memoirs 32, 167-190.
10. HARANGI, SZ. and LENKEY, L., 2007: Genesis of the Neogene to Quaternary volcanism in the Carpathian-Pannonian region: Role of subduction, extension, and mantle plume Geological Society of America Special Paper 418, 67-90.
11. HARANGI, SZ., MOLNÁR, M., VINKLER, A.P. KISS, B., JULL, A.T.J. and LEONARD, B., 2010: Radiocarbon dating of the last volcanic eruptions of Ciomadul Volcano, Southeast Carpathians, Eastern-Central Europe. Radiocarbon 52, 1498-1507.
12. HAUSER, F., RǍILEANU, V., FIELITZ, W., DINU, C., LANDES, M., BǍLǍ, A. and PRODEHL C., 2007: Seismic crustal structure between the Transylvanian Basin and the Black Sea, Romania, Tectonophysics 430, 1-25.
13. ISMAIL-ZADEH, A.T., MUELLER, B. and SCHUBERT, G., 2005: Three-dimensional numerical modeling of contemporary mantle flow and tectonic stress beneath the earthquake-prone southeastern Carpathians based on integrated analysis of seismic, heat flow, and gravity data, Physics of the Earth and Planetary Interiors 149, 81-98.
14. IVAN, M., POPA, M. and GHICA D., 2008: SKS splitting observed at Romanian broad-band seismic network, Tectonophysics 462, 89-98.
15. IVAN, M., 2011: Crustal thickness in Vrancea area, Romania from S to P converted waves, J Seismol, doi:10.1007/s10950-0109225-4.
16. JUVIGNE E., GEWELT M., GILOT E., HURTGEN CH., SEGHEDI I., SZAKÁCS A., HADNAGY A., GABRIS G. and HORVATH E., 1994: Une eruption vielle d'environ 10,700 ans (14C) dans les Carpates Orientale (Roumanie). C.R.Acad.Sci.Paris 318, serie II, 1233-1238.
17. KEIR, D.B., BASTOW, I.D., DALY, E., CORNWELL, D., and WHALER, K.A., 2009: Lower-crustal earthquakes near the Ethiopian rift induced by magmatic processes, Geochem. Geophys. Geosyst. 10, Q0AB02, doi:10.1029/2009GC002382.
18. KOULAKOV, I., 2009: LOTOS code for local earthquake tomographic inversion. Benchmarks for testing tomographic algorithms, Bull. Seismol. Soc. Am. 99, 194-214, doi:10.1785/ 0120080013.
19. KOULAKOV, I., ZAHARIA, B., ENESCU, B., RADULIAN, M., POPA, M., PAROLAI, S., and J. ZSCHAU, 2010: Delamination or slab detachment beneath Vrancea? New arguments from local earthquake tomography, Geochem. Geophys. Geosyst. (G3), 11, 3, Q03002, doi:10.1029/2009GC002811.
20. LANDES, M., FIELITZ, W., HAUSER, F., POPA, M., and CALIXTO Group, 2004: 3-D upper-crustal tomographic structure across the Vrancea seismic zone, Romania, Tectonophysics 382, 85-102.
21. LǍZǍRESCU, V., 1985: personal communication.
22. LINDENFELD, M. and RÜMPKER, G., 2011: Detection of mantle earthquakes beneath the East African Rift, Geophys. J. Int. 186, 1-5.
23. MARTIN, M., RITTER, J.R.R. and the CALIXTO working group, 2005: High-resolution teleseismic body-wave tomography beneath SE Romania - I. Implications for three-dimensional versus one-dimensional crustal correction strategies with a new crustal velocity model, Geophys. J. Int. 162, 448-460.
24. MARTIN, M., WENZEL, F. and CALIXTO Working Group, 2006: High-resolution teleseismic body wave tomography beneath SE Romania: II. Imaging of a slab detachment scenario. Geophys. J. Int. 164, 579-595, doi:10.1111/j.1365-246X.2006.02884.x.
25. MASON P., DOWNES H., THIRLWALL M.F., SEGHEDI I., SZAKÁCS A., LOWRY D. and MATTEY D., 1996: Crustal assimilation as a major petrogenetic process in the East Carpathian Neogene and Quaternary continental margin arc, Romania. J. Petrology 37, 927-959.
26. MASON P.R.D., SEGHEDI I., SZAKÁCS A. and DOWNES H., 1998: Magmatic constraints on geodynamic models of subduction in the Eastern Carpathians, Romania. Tectonophysics 297, 157-176.
27. MAŢENCO, L., BERTOTTI, G., LEEVER, K., CLOETINGH, S., MARIN, M., SCHMID, S., TǍRǍPOANCǍ M., DINU C., 2007: Large-scale deformation in a locked collisional boundary: interplay between subsidence and uplift, intraplate stress, and inherited lithospheric structure in the late stage of the SE Carpathians evolution, Tectonics 26, TC4011. doi:10.1029/2006TC001951.
28. MAŢENCO, L., KRÉZSEK, C., MERTEN, S., SCHMID, S., CLOETINGH, S. and ANDRIESSEN, P., 2010: Characteristics of collisional orogens with low topographic build-up: an example from the Carpathians, Terra Nova 22, 155-165.
29. MERTEN, S., MAŢENCO, L. FOEKEN, J. P. T. STUART F. M., and ANDRIESSEN P. A. M., 2010: From nappe stacking to out-ofsequence postcollisional deformations: Cretaceous to Quaternary exhumation history of the SE Carpathians assessed by low temperature thermochronology, Tectonics 29, TC3013, doi: 10.1029/2009TC002550.
30. 14C age of Ciomadul volcano, Summaries of Researches Using AMS at Nagoya University VI, 82-90.
31. MORIYA, I., OKUNO, M., NAKAMURA, T., ONO, K., SZAKÁCS, A. and SEGHEDI, I., 1996: Radiocarbon ages of charcoal fragments from the pumice flow deposit of the last eruption of Ciomadul volcano, Romania. Summaries of Researches using AMS at Nagoya University VII, 255.
32. NEAGOE, C. and IONESCU, C., 2009: Toward a dense real-time seismic network in Romania, Romanian Reports in Physics 61, 359-366.
33. NEAGOE C., POPA M., DIACONESCU M. and RADULIAN M., 2010: Possible deep lithospheric roots beneath South-Eastern Carpathians back-arc region, Acta Geodaetica et Geophysica Hungarica 45, 340-355.
34. NEUBERG, J.W., TUFFEN, H., COLLIER, L., GREEN, D., POWELL, T. and DINGWELL, D.B., 2006: The trigger mechanism of low-frequency earthquakes on Montserrat, J. Volc. Geotherm. Res. 153, 37-50.
35. ONCESCU, M.C., RIZESCU, M. and BONJER, K.P., 1996: SAPS-A completely automated and networked seismological acquisition and processing system, Computers & Geosciences 22, 89-97.
36. ONCESCU, M. C., MARZA, V, RIZESCU, M. and POPA, M., 1999, The Romanian earthquakes catalogue between 984 and 1997. In: Vrancea Earthquakes: Tectonics, Hazard and Risk Mitigation, edited by F. Wenzel, and D. Lungu, Kluwer Academic Publishers, pp. 43-47.
37. PAIGE, C. C., and SAUNDERS, M. A. 1982: LSQR: An algorithm for sparse linear equations and sparse least squares, Trans. Math. Software 8, 43-71, doi:10.1145/355984.355989.
38. PÉCSKAY Z., EDELSTEIN O., SEGHEDI I., SZAKÁ CS A., KOVACS M., CRIHAN M. and BERNAD A., 1995: K-Ar datings of the Neogene-Quaternary calc-alkaline volcanic rocks in Romania. In: DOWNES, H. & VASELLI, O. (eds) Neogene and related volcanism in the Carpatho-Pannonian Region. Acta Vulcanologica 7, 53-63.
39. PÉCSKAY, Z., LEXA, J., SZAKÁCS, A., SEGHEDI, I., BALOGH, K., KONEČNÝ, V., ZELENKA, T., KOVACS, M., PÓKA, T., FÜLÖP, A., MÁRTON, E., PANAIOTU, C. and CVETKOVIĆ, V., 2006: Geochronology of Neogene-Quaternary magmatism in the Carpathian arc and Intra-Carpathian area: a review. Geologica Carpathica 57, 511-530.
40. RADULIAN, M., POPA, M., CǍRBUNAR, O.F. and ROGOZEA, M., 2008: Seismicity patterns in Vrancea and predictive features, Acta Geodaetica et Geophysica Hungarica 43, 163-173.
41. RUSSO, R.M., MOCANU, V., RADULIAN, M., POPA, M. and BONJER, K.-P., 2005: Seismic attenuation in the Carpathian bend zone and surroundings. Earth Planet. Sci. Lett. 237, 695-709.
42. POPA, M, RADULIAN, M, GRECU, B, POPESCU, E. and PLǍCINTǍ, A. O., 2005: Attenuation in Southeastern Carpathians area: Result of upper mantle inhomogeneity. Tectonophysics 410, 235-249.
43. SCARPA, R. and TILLING, R. I., 1996: Monitoring and Mitigation of Volcano Hazards, Springer, 841 pp.
44. SCHMID, S. M., BERNOULLI, D., FÜGENSCHUH, B., MATENCO, M., SCHEFER, S., SCHUSTER, R., TISCHLER, M. and USTASZEWSKI, K., 2008: The Alps-Carpathians-Dinarides-connection: a correlation of tectonic units, Swiss J. Geosci. 101, 139-183.
45. SCHMITT, G., NUCKELT, A., KNÖPFLER, A. and MARCU, C., 2007: Three dimensional plate kinematics in Romania, Proceedings of International Symposium on Strong Vrancea Earthquakes and Risk Mitigation, Bucharest, Romania, Oct. 4-6, 2007.
46. SEGHEDI, I., BALINTONI, I. and SZAKÁCS, A., 1998: Interplay of tectonics and Neogene post-collisional magmatism in the intracarpathian area. Lithos 45, 483-499.
47. SEGHEDI, I., DOWNES, H., ZAKÁCS, A., MASON, P.R.D., THIRLWALL, M.F., ROŞU, E., PÉCSKAY, Z., MARTON, E. and PANAIOTU, C., 2004a: Neogene-Quaternary magmatism and geodynamics in the Carpathian-Pannonian region: a synthesis. Lithos 72, 117-146.
48. SEGHEDI, I., DOWNES, H., VASELLI, O., SZAKÁCS, A., BALOGH, K. and PÉCSKAY, Z., 2004b: Post-collisional Tertiary-Quaternary mafic alkalic magmatism in the Carpathian-Pannonian region: a review. Tectonophysics 393, 43-62.
49. SEGHEDI, I., DOWNES, H., HARANGI, S., MASON, P.R.D. and PÉCSKAY, Z., 2005: Geochemical response of magmas to Neogene-Quaternary continental collision in the Carpathian-Pannonian region: a review. Tectonophysics 410: 485-499.
50. SEGHEDI, I., MAŢENCO, L., DOWNES, H., MASON, P. R. D., SZAKÁCS, A. and PÉCSKAY, Z., 2011: Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region. Tectonophysics 502, 146-157, doi:10.1016/j.tecto.2009.12.003.
51. SOOSALU, H., KEY, J., WHITE, R., KNOX, C., EINARSSON, P. and JAKOBSDÓTTIR, S.S., 2010: Lower-crustal earthquakes caused by magma movement beneath Askja volcano on the north Iceland rift, Bull. Volcanol., 72, 55-62.
52. STǍNICǍ, D., STǍNICǍ, M. and ASIMOPOLOS, L., 2000: The main Tethyan suture zone revealed by magnetotelluric tomography, Rev. Roum. Géophysique 44, Bucharest, 123-130.
53. SZAKÁ CS, A. and SEGHEDI, I., 1995: The Cǎlimani-Gurghiu-Harghita volcanic chain, East Carpathians, Romania: Volcanological features. Acta Vulcanologica, 7(2), 145-153.
54. SZAKÁCS, A. and SEGHEDI, I., 2000: Neogene/Quaternary volcanism in Romania: an outline. In Field excursion guide IGCP 430: Mantle dynamics implications for Tethyan natural hazard mitigation, Covasna June 16-22, 2000.
55. SZAKÁCS A., SEGHEDI I. and PÉCSKAY Z., 2002: The most recent volcanism in the Carpathian-Pannonian Region. Is there any volcanic hazard? Geologica Carpathica, 53, Special Issue, Proceedings of the XVIIth Congress of Carpathian-Balkan Geological Association, 193-194.
56. SZAKÁCS, A., SEGHEDI, I., PÉCSKAY, Z. and VINKLER, A. P., 2004: Ciomadul: The Most Recent Volcano In The Carpathian-Pannonian Region. 32nd International Geological Congress, Florence, Italy, August 20-28, abstract volume, 280-323.
57. TǍRǍPOANCǍ, M., BERTOTTI, G., MAŢENCO, L., DINU, C. and CLOETINGH, S., 2003: Architecture of the Focşani depression: a 13 km deep basin in the Carpathians bend zone (Romania), Tectonics 22/6, 1074, doi:10.1029/2002TC001486.
58. VAN DER HOEVEN, A.G.A., MOCANU, V., SPAKMAN, W., NUTTO, M., NUCKELT, A., MAŢENCO, L., MUNTEANU, L., MARCU, C. and AMBROSIUS, B.A.C., 2005: Observation of present-day teconic motion in the Southeastern Carpathians: Results of the ISES/ CRC-461 GPS measurements, Earth Planet. Sci. Lett. 239, 177-184.
59. VAN DER SLUIS, A., and VAN DER VORST H. A. 1987: Numerical solution of large, sparse linear algebraic systems arising from tomographic problems, in Seismic Tomography, edited by G. Nolet, pp. 49-83, D. Reidel, Dordrecht, Netherlands.
60. VASELLI O., MINISSALE A., TASSI F., MAGRO G., SEGHEDI I., IOANE D. and SZAKÁCS A., 2002: A geochemical traverse across the Eastern Carpathians (Romania): constraints on the origin and evolution of the mineral water and gas discharges. Chemical Geology 182, 637-654.
61. VINKLER, A.P., HARANGI, SZ., NTAFLOS, T. and SZAKÁCS, A., 2007: Petrology and geochemistry of pumices from the Ciomadul volcano (Eastern Carpathians)-implication for petrogenetic processes. (in Hungarian with an English abstract) Földtani Közlöny 137/1, 103-128.
62. VISARION, M., SǍNDULESCU, M., STǍNICǍ, D. and VELICIU, S {ogonek} 1988: Contributions à la connaissance de la structure profonde de la plateforme moésienne en Roumanie. Stud. Teh. Econ., Geofiz. 15, 211-222.
63. WENZEL, F., ACHAUER, U., ENESCU, D., KISSLING, E. and MOCANU, V., 1998: Detailed look at final stage of plate break-off is target of study in Romania, EOS, Transactions, American Geophysical Union 79, 48, 589-594.
64. WOLFE, C.J., OKUBO, P.G. and SHEARER, P.M., 2003: Mantle fault zone beneath Kilauea volcano, Hawaii, Science 300, 478-480.