Prof. dr. ing. Marian Ivan

   Departamentul Geofizica

  1. M. Ivan, 1986, On the upward continuation of potential field data between irregular surfaces, Geophysical Prospecting, 34, p. 735-742.
  2. M. Ivan, 1994, Upward continuation of potential fields from a polyhedral surface, Geophysical Prospecting, 42, p. 391-404.
  3. M. Ivan, 1994, Line integrals of potential fields data, Geophysical Prospecting, 42, p. 735-743.
  4. M. IVAN, 1996, Optimum expression for computation of the magnetic field of a homogeneous polyhedral body, Geophysical Prospecting, 44, p.279-288.
  5. M. IVAN, 1996, Polyhedral approximations in Physical Geodesy, J. Geodesy, 70, p.755-767.
  6. Marian Ivan, Vasile Marza, Daniel de Farias Caixeta and Tassia de Melo Arraes, 2006, Uppermost inner core attenuation from PKP data observed at some South American seismological stations, Geophys.J.Int., 164, p.441-448.
  7. Marian Ivan, 2006, Attenuation of P and pP waves in Vrancea area- Romania, J. Seismology, Springer Verlag,
  8. Marian Ivan, Gaétan Roch Moloto-A-Kenguemba, 2007, Attenuation in the uppermost inner core from PKP recordings at African seismological stations, Studia Geophysica et Geodaetica, p. 221-230,
  9. Marian Ivan, Mihaela Popa, Daniela Ghica, 2008, SKS splitting observed at Romanian broad-band seismic network, Tectonophysics,
  10. Ivan, M., Cormier, V.F., 2010, High Frequency PKKPbc around 2.5 Hz Recorded Globally, PAGEOPH,
  11. Marian Ivan, 2011, Crustal thickness in Vrancea area-Romania from S to P converted waves, J. Seismology,
  12. Ivan, Marian; Wang, Rongjiang, 2013, Anomalous high amplitude ratios of P5KP/PKPab and P4KP/P(S)cP observed globally around 1 Hz, J. Seismology, 17, p. 453-464
  13. Ivan, Marian; Ghica, Daniela Veronica; Gosar, Andrej; et al., 2015, Lowermost Mantle Velocity Estimations Beneath the Central North Atlantic Area from Pdif Observed at Balkan, East Mediterranean, and American Stations, PAGEOPH, 172, p. 283-293 DOI: 10.1007/s00024-014-0859-y
  14. Marian Ivan, Xiaobo, He, 2016, Uppermost Inner Core Heterogeneity from differential Travel Times of PKIKP vs. PKP-Bdiff and PKP-Cdiff Phases,PAGEOPH, DOI: 10.1007/s00024-016-1391-z
  15. Marian Ivan, Rongjiang Wang, Rami Hofstetter, 2018, Non quasi-Hemispherical Seismological Pattern of the Earth’s Uppermost Inner Core, Scientific Reports 8, doi:10.1038/s41598-018-20657-x

Other papers

  1. Marian IVAN, 1983, A statistical procedure for estimation of density in reduction of gravity data, Rev.Roum. GEOPHYSIQUE, 27, p.43-49, Bucharest, Romania;
  2. Marian IVAN, 1986, Potential field data processing with natural cubic splines: the accuracy of estimation, Rev.Roum.GEOPHYSIQUE, 30, p.59-63;
  3. Marian IVAN, 1986, Upward continuation of unevenly spaced potential field data using equivalent sources, Geophysical Transactions, 32, p.31-42, Budapest, Hungary;
  4. Marian IVAN, 1987, Error propagation for potential field data processing in the frequency domain, Geophysical Transactions, 32, p.313-318;
  5. M. IVAN, 1988, Asymptotic behavior of the magnetic field, Rev.Roum. GEOPHYSIQUE, 32, p.53-57;
  6. M. IVAN, 1990, Improved algorithms for 2-D gravity and magnetic data modeling, Rev.Roum. GEOPHYSIQUE, 34, p.49-54;
  7. M. IVAN, 1993, Asymptotic behavior of extremum points of potential fields, Rev.Roum. GEOPHYSIQUE, 37, p.3-8;
  8. Marian IVAN, 1997, Aperiodic motion of a crustal microplate, Rev.Roum. GEOPHYSIQUE, 41, p.45-52;
  9. Marian IVAN, 1997, Algorithm for computing the flexure of the lithosphere, St.cerc.geol., geofiz., geogr. (GEOPHYS.), 35, p.49-60, Bucharest, Romania;
  10. IVAN, M., SEVILLA, M.J., 1998, Local quasi-geoid and downward continuation by integrated harmonic series. Application to Dobrudjea area-Romania, Rep.Finnish Geodetic Inst., 98: 4, p.129-136;
  11. IVAN, M., 1998, On the difference between quasi-geoid heights and geoid undulations, Int. Geoid Serv. Bull. 8, p.53-64, Milan, Italy;
  12. IVAN, M., WIEJACZ, P., POPA, M., RADULIAN, M., 2000, The Romanian Vrancea Event of April 6th 2000: Relocation and Fault Plane Solution, Rev.Roum. GEOPHYSIQUE, 44, p.71-78;
  13. M. IVAN, 2001, SKS splitting observed at GEOFON station MLR in Vrancea area – Romania, Rev.Roum. GEOPHYSIQUE, 44, p.79-86;
  14. Marian Ivan, Luis Homem D’El Rey-Silva, Vasile Marza, 2001, Probing the Subcontinental South American Upper Mantle with SKS Splitting at Some Selected Brazilian Sites, Rev.Roum.GEOPHYSIQUE, 45, p.39-57;
  15. M. IVAN, L. TOTH, KISZELY, M, 2002, SKS splitting observed at the Hungarian GEOFON station PSZ, J.Balkan Geoph.Soc., 5, p.71-76;
  16. Marian Ivan, 2003, Short-period QpP-P in Vrancea area, Romania, J.Balkan Geoph.Soc., p.46-52;
  17. Marian Ivan, 2003, QS-P in Vrancea and adjacent areas – Romania, St.cerc.geol., geofiz., geogr. (GEOPHYS.), 41, p.57-63;
  18. Ivan, M. and Popa, M., 2003, Crustal seismicity adjacent to Vrancea area: the March 8th 2000 earthquake, St.cerc. GEOFIZICA, 42, p.27-37;
  19. Ivan, M. and Popa, M., 2004, Attenuation in the uppermost inner core from PKP data observed at some Romanian stations, J.Balkan Geoph.Soc., 7, no.3., p.23-29;
  20. Ivan, M. and Wiejacz, P., 2005, Inner core attenuation observed at Polish broad-band station, Acta Geoph. Polonica, 53, no.3, p.231-238.

Course Notes

  1. Marian IVAN, 2004, Seismology – Elements of digital data processing (in Romanian), Univ. of Bucharest;
  2. Marian IVAN, 1998, Theoretical Mechanics (in English), Univ. of Bucharest;
  3. Marian Ivan, 1996, Seismology / Theoretical Foundations (in Romanian), Univ. of Bucharest;
  4. Marian IVAN, 1994, Magnetic Prospecting (in Romanian), Univ. of Bucharest.
  5. An accurate source – code (GNU FORTRAN) for SKS splitting analyses is available by request.


  • MSc in Mathematics (University of Bucharest, 1993, S.d.P.);
  • PhD in Geophysics (University of Bucharest, 1993);
  • MSc in Geophysics and Geology (University of Bucharest, 1980, S.d.P./RO).

Teaching : Gravity & Magnetics ; Seismology.

Scientific interest:

  • crustal thickness in Vrancea from S -> P converted waves (time domain / not RFs);
  • Pn & Sn maps in Vrancea and adjacent area;
  • attenuation of seismic waves;
  • anisotropy / SK(K)S splitting;
  • slowness tomography of diffracted phases;
  • PKiKP-PKIKP differential times tomography of the Uppermost Inner Core

Indice Hirsch = 6

Research ID

Associate Editor (Solid Earth)  ACTA GEOPHYSICA

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