Passive seismic experiment and receiver functions analysis to determine crustal structure at the contact of the northern Dinarides and southwestern Pannonian Basin

Šumanovac, Franjo; Hegedűs, E.; Orešković, Jasna; Kolar, Saša; Kovács, Annamária; Dudjak, Darko; Kovàcs, István

doi:10.1093/gji/ggw101

Cited by 15 publications

(12 citation statements)

References 42 publications

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“…Interestingly, the ND anomaly in the area of Gorski Kotar (e.g. Šumanovac et al, 2017) partly fit the observed κ decrease. It could be speculated that the northern Dinaric fast-velocity anomaly (ND anomaly), identified on the teleseismic tomography for the wider Kvarner, may be related to the lithospheric transform zone striking transversally to the Dinarides below the Kvarner area (Korbar, 2009), delineating the boundary between the NW and SE Adriatic microplate fragments recognized by Oldow et al (2002).…”

Section: Geological Features and Seismic Activitysupporting

confidence: 57%

Estimation of near-surface attenuation in the tectonically complex contact area of the northwestern External Dinarides and the Adriatic foreland

Markušić

Stanko

Korbar

et al. 2019

Nat. Hazards Earth Syst. Sci.

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Seismically induced ground motion at a site is generally influenced by the seismic source, the propagation path and the local site conditions. Over the last several decades, researchers have consistently asserted that for near-site attenuation, the spectral parameter κ is subject primarily to the site conditions. In this research, we estimated the parameter κ based on the acceleration amplitude spectrum of shear waves from local earthquakes recorded by seismological stations situated in the western part of Croatia from the slope of the high-frequency part. The spatial distribution of κ values is comparable with seismological, geophysical and geological features, with the published coda-Q values for each station as well as with the isoseismal maps for selected stronger earthquakes in the study area. The complex pattern of longitudinal and transversal major late-orogenic fault zones dissecting early-orogenic thin-skinned tectonic cover in the Kvarner area and the shallow depth to the Moho (Mohorovičić discontinuity) in the Adriatic foreland (southern Istria) are probably responsible for a significant part of wave attenuation and for the anisotropy of attenuation. Regional near-surface attenuation distribution and modelled macroseismic fields point to the conclusion that attenuation properties of rocks in the northwestern External Dinarides are far from isotropic, and the most likely anisotropy sources are the preferential orientations of cracks and fractures under the local tectonic stress field, trapping of waves along major faults (waveguides), and/or attenuation within the fault zones. These results are important for gaining further insight into the attenuation of near-surface crust layers in the northwestern External Dinar-ides and the associated Adriatic foreland as well as in similar geotectonic settings.

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Section: Geological Features and Seismic Activitysupporting

confidence: 57%

Estimation of near-surface attenuation in the tectonically complex contact area of the northwestern External Dinarides and the Adriatic foreland

Markušić

Stanko

Korbar

et al. 2019

Nat. Hazards Earth Syst. Sci.

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“…Yellow color is the sediment layer. Moho depths from previous studies and receiver functions (Chiarabba et al., 2014; Diaferia et al., 2019; Mele & Sandvol, 2003; Piana Agostinetti & Amato, 2009; Piana Agostinetti & Faccenna, 2018; Stipčević et al., 2020; Šumanovac et al., 2016) are shown for comparison.…”

Section: Lithospheric Structure and Upper Mantle Characterization Fro...mentioning

confidence: 99%

Geophysical‐Petrological Model for Bidirectional Mantle Delamination of the Adria Microplate Beneath the Northern Apennines and Dinarides Orogenic Systems

et al. 2022

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The N-S convergence between the African and Eurasian plates since the Late Cretaceous is recognized as the primary causal mechanism for the squeezing of intervening microplates, bounded by narrow branches of the Neo-Tethys Ocean (e.g., Dewey et al., 1989). In particular, it drove to the development of subduction and collision orogens in the Central-Western Mediterranean region, which is a part of the active Alpine-Mediterranean mobile belt. The Adria microplate plays a key role in this geodynamic puzzle since Jurassic times, when the Vardar ophiolitic obduction started, followed by continental collisions with the Tisza microplate and Eurasian plate (Schmid et al., 2020). Subsequently, the NW-SE trending Dinarides orogenic belt developed along the NE margin of Adria whereas the NW-SE trending Apennines fold-thrust belt evolved in its SW margin. The Adria-Eurasia

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“…Another data source is the Moho depth map derived from 3-D seismic wide-angle reflection and refraction data acquired during the experiments CELEBRATION 2000 and ALP 2002 (Behm et al, 2007). We used also the depth of the Moho from the teleseismic receiver functions beneath permanent or temporary seismic stations (Lombardi et al, 2008;Piana Agostinetti and Amato, 2009;Orešković et al, 2011;Stipčević et al, 2011;Miller and Piana-Agostinetti, 2012;Bianchi et al, 2015;Šumanovac et al, 2016;Hetényi et al, 2018).…”

Section: Datamentioning

confidence: 99%

“…A different perspective was offered by the CELEBRATION 2000, ALP 2002 WAR/R, and ALPASS data in the transition area between the Alps, Dinarides and Carpathians, interpreted in terms of a Moho fragmentation between Eurasia, the Adria microplate, and the Pannonian fragment (Behm et al, 2007;Brückl et al, 2007Brückl et al, , 2010Šumanovac et al, 2009;Mitterbauer et al, 2011; Figure 1), so that the subduction polarity of Eurasia plate would be unique in the whole Alpine region. To the south of the triple junction between the three fragments, the Adria lithosphere would underthrust below the Dinarides and the Pannonian fragment (Brückl et al, 2010;Šumanovac et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Deriving a New Crustal Model of Northern Adria: The Northern Adria Crust (NAC) Model

Magrin

Rossi

2020

Front. Earth Sci.

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We presented a new 3D model of the geophysical properties of the crust (namely depth of the Moho and V P , V S , density, Young's modulus, and shear modulus) of the northern tip of the Adria microplate that we called NAC (Northern Adria Crust). The horizontal dimensions of the physical properties variations are optimized at 5 × 5 km and the vertical dimension at 1 km. NAC has been built by critically choosing and integrating all available information about the depth of the main interfaces and the physical properties of the crust. We started from a V P dataset, and we converted it in V S and density by using empirical relations, tuned through the comparison with the available data from local tomographic inversion, and taking into account the lithologies of the area. Uncertainties and reliability of the model are quantified, taking into account the data quality and the interpolation procedure. NAC has two versions, different in the structure of the Moho interface: the first considers one continuous surface for the whole area, while the second implies three separate surfaces for the Adria microplate, Eurasia, and the Pannonian fragment. The differences between the two models are minimal, but the available data better sustain the solution of the fragmented crust. For its characteristics of multiparametric information and resolution, NAC can be precious for any purpose and use where a detailed knowledge of the crustal structure of this area is required. Moreover, it is easy to improve NAC, including new information on the crustal structures, when they will be available.

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Passive seismic experiment and receiver functions analysis to determine crustal structure at the contact of the northern Dinarides and southwestern Pannonian Basin

Cited by 15 publications

References 42 publications

Estimation of near-surface attenuation in the tectonically complex contact area of the northwestern External Dinarides and the Adriatic foreland

Estimation of near-surface attenuation in the tectonically complex contact area of the northwestern External Dinarides and the Adriatic foreland

Geophysical‐Petrological Model for Bidirectional Mantle Delamination of the Adria Microplate Beneath the Northern Apennines and Dinarides Orogenic Systems

Deriving a New Crustal Model of Northern Adria: The Northern Adria Crust (NAC) Model

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