Ambient seismic noise Rayleigh wave tomography for the Pannonian basin

Szanyi, Gyöngyvér; Gráczer, Zoltán; Győri, Erzsébet

doi:10.1007/s40328-013-0019-3

Cited by 8 publications

(7 citation statements)

References 56 publications

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“…The average 25 km Moho depth was determined by the distribution of the P-wave velocities [24]. The detailed structure of the crust was determined from the recordings of the Rayleigh waves of 17 seismologic stations [25]. Figure 7 shows the total magnetic anomalies over the Pannonian basin these anomalies represent a section of total magnetic anomalies presented in Figure 4.…”

Section: Error Calculationmentioning

confidence: 99%

Interpretation of the Magnetic Measurements of the Swarm-A Satellite over Central Europe

Pt¹,

Ki²,

Toronyi³

et al. 2019

Int J Astronaut Aeronautical Eng

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Our paper discusses the determination of total magnetic field anomalies derived from the Swarm-A satellite data; one of two low orbiting satellites of the three Swarm formations. This procedure requires several modifications. The first step is the conversion of the measured CDF data to the ASCII format. This step is followed for the selection of the data with K p index ≤ 1 +. The anomalies are determined by the removal of the IGRF from the resulting satellite data. There are two Swarm-A data sets descending (6000) orbits and ascending (5688) orbits. For our study the descending orbits were used. The calculations next step is to difference of the two-dimensional linear field Figure 3 fitted to the Swarm-A anomalies and the anomalies given in Figure 2. These anomalies are filtered by Gaussian low-pass filter. The last step of the corrections is the remove the direct component, zero spatial frequency, from the descending orbits. The anomalies and their vertical gradients are qualitatively interpreted over Central Europe and the Pannonian Basin.

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Section: Error Calculationmentioning

confidence: 99%

Interpretation of the Magnetic Measurements of the Swarm-A Satellite over Central Europe

Pt¹,

Ki²,

Toronyi³

et al. 2019

Int J Astronaut Aeronautical Eng

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“…Yang et al, 2007;Bensen et al, 2008Bensen et al, , 2009Stehly et al, 2009), regionális (pl. Sabra et al, 2005a;Shapiro et al, 2005;Yao et al, 2006;Brenguier et al, 2007;Cho et al, 2007;Lin et al, 2007;Moschetti et al, 2007;Villaseñor et al, 2007;Szanyi et al, 2013) és lokális (pl. Boaga et al, 2010;Picozzi et al, 2009;Pilz et al, 2014;Szanyi et al, 2016) léptékű kutatásokban.…”

Section: Fejezet Bevezetésunclassified

“…S-hullám menetidőtomográ ai számításokat Dando et al (2011) végeztek, eredményeik 75-600 km mélységre adják meg a Pannon-medence alatti felső köpeny sebességszerkezetét. A Pannonmedencére vonatkozó kis mélységű, elsősorban a kéregre és a köpeny legfelső részére fókuszáló felületi hullám tomográ át először jelen dolgozat szerzője (Szanyi et al, 2013), majd Ren et al (2013) végeztek.…”

Section: A Kutatás Célkitűzéseunclassified

A Pannon-medence S-hullám-sebességterének vizsgálata

Szanyi¹

2016

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“…The average thickness of the lithosphere has been estimated to approximately 60-70 km in the center of the basin (Tari et al 1999;Lenkey 1999). There are also indications for thin lithosphere and shallow asthenosphere from active seismic (Behm et al 2007;Grad et al 2006), receiver function (Kalmár et al 2018;Hetényi et al 2015) magnetotelluric (Praus et al 1990;Ádám et al 2017;Ádám and Wesztergom 2001) and tomographic (Szanyi et al 2013;Dando et al 2011;Ren et al 2013) studies.…”

Section: Introductionmentioning

confidence: 99%

“…A huge portion of these studies were 2D refraction and reflection measurements mostly on the western and northern part of the Pannonian Basin (Behm et al 2007;Grad et al 2006). 3D seismic velocity models have also been developed recently, based on ambient noise and earthquake generated surface wave measurements (Szanyi et al 2013;Ren et al 2013;El-Sharkawy et al 2017;Kästle et al 2018). However, the last traveltime tomography calculations date back to the early 2000's (Bus 2001;Wéber 2002).…”

Section: Introductionmentioning

confidence: 99%

3D P-wave velocity image beneath the Pannonian Basin using traveltime tomography

2019

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The Pannonian region is a back-arc basin located within the arcuate Alpine-Carpathian mountain chain in central Europe. Beneath the basin both the crust and the lithosphere have smaller thickness than the continental average. During the last few decades several studies have been born to explain the formation of the Pannonian Basin but several key questions remain unanswered. In this study we construct a new high-resolution 3D P-wave velocity model of the crust and uppermost mantle in the Pannonian Basin which may help us to understand better the structure and evolution of the region. For the 3D P-wave velocity structure estimation over 32 thousand traveltime picks have been derived from the ISC bulletin and the local Hungarian National Seismological Bulletin, and altogether we used more than 3200 seismic events (local, near-regional and regional) and more than 150 seismic stations from the time period between 2004 and 2014. For the 3D velocity field inversion we used the FMTOMO software package which uses the so called Fast Marching Method for calculating the traveltime estimations, and the subspace inversion method to recover the model parameters. We also performed several checkerboard tests both to select the appropriate regularization parameters and to help the interpretation of the resulting P-wave velocity model. On the resulting tomographic image the seismic velocity anomalies well resolve the effects of deep sedimentary basins and also Moho topography and the associated updomings of the asthenosphere below the Pannonian Basin. Different major tetonic units and fault zones separating those seem to show characteristic velocity anomalies. Subrecent volcanic activity or associated melt and fluid percolation, heat transfer in the upper mantle and crust may also have an impact on the propagation of seismic waves.

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Ambient seismic noise Rayleigh wave tomography for the Pannonian basin

Cited by 8 publications

References 56 publications

Interpretation of the Magnetic Measurements of the Swarm-A Satellite over Central Europe

Interpretation of the Magnetic Measurements of the Swarm-A Satellite over Central Europe

A Pannon-medence S-hullám-sebességterének vizsgálata

3D P-wave velocity image beneath the Pannonian Basin using traveltime tomography

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