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Pregled bibliografske jedinice broj: 1170290

Structure and tectonic evolution of the Velebit Mt. in the central part of the External Dinarides


Tomljenović, Bruno; Balling, Philipp, Schmid, M.Stefan; Ustaszewski, Kamil; Matoš, Bojan; Vlahović, Igor; Blažok, Lovro; Posarić, Dino; Širol, Andre
Structure and tectonic evolution of the Velebit Mt. in the central part of the External Dinarides // Knjiga sažetaka - Abstracts Book / Horvat, Marija ; Matoš, Bojan ; Wacha, Lara (ur.).
Zagreb: Hrvatski geološki institut - Croatian Geological Survey, 2019. str. 204-204 (predavanje, međunarodna recenzija, sažetak, znanstveni)


CROSBI ID: 1170290 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Structure and tectonic evolution of the Velebit Mt. in the central part of the External Dinarides

Autori
Tomljenović, Bruno ; Balling, Philipp, Schmid, M.Stefan ; Ustaszewski, Kamil ; Matoš, Bojan ; Vlahović, Igor ; Blažok, Lovro ; Posarić, Dino ; Širol, Andre

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Knjiga sažetaka - Abstracts Book / Horvat, Marija ; Matoš, Bojan ; Wacha, Lara - Zagreb : Hrvatski geološki institut - Croatian Geological Survey, 2019, 204-204

ISBN
978-953-6907-73-1

Skup
6. hrvatski geološki kongres s međunarodnim sudjelovanjem - 6th Croatian Geological Congress with international participation

Mjesto i datum
Zagreb, Hrvatska, 09.-12.10.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Velebit Mt. ; External Dinarides ; passive roof duplex

Sažetak
Detailed outcrop-scale analysis of fault-slip data, in combination with data presented on published geological maps, were used for a reconstruction of the structural architecture and tectonic evolution of the Velebit Mt., the most prominent geomorphological structure in the central part of the External Dinarides in Croatia. The analysis of kinematic indicators recorded by major fault planes indicates the prevalence of dip-slip and top-to-NE motions, verifying that these faults are NE-verging thrusts rather than NE-dipping normal faults as previously thought. Consequently, we challenge earlier tectonic models that interpret the Velebit Mt. structure as a SW-vergent antiformal stack or thrust duplex formed above the major NE-dipping thrust system (TARI KOVAČIĆ & MRINJEK, 1994) or as a complex transpressional structure formed during the late-orogenic escape tectonic phase along an inherited crustal fault zone (GRANDIĆ et al., 2004 ; KORBAR, 2009). Instead, we use the concept of a passive roof duplex within a triangle structure. Thereby, the Velebit structure represents a stack of NE-verging backthrusts formed above a SW-vergent compressional duplex. Our interpretation was recently tested by BALLING et al. (2017) by construction of forward modelled balanced cross sections. Additionally, we analysed a large set of fault-slip data comprising more than 1000 measurements collected in the carbonate breccia exposed along the SW mountain slope at about 60 measurement sites. Curiously, the majority of recorded fault-slip data comprise structures with a normal sense of shear indicating orogen-perpendicular (NE-SW) to orogen-parallel (NW-SE) extension. According to the very good preservation and high frequency of occurrence, these extensional structures may have played an important role in formation of the extremely voluminous carbonate breccia exposed along the SW mountain slope. Accordingly, we propose that these structures resulted from a state of stress characterised by radial extension induced by gravitational collapse and spreading as a result of the uptilting of the SW-dipping Velebit monocline. Therefore, our interpretation is only partly in accordance with KORBAR (2009) who suggested that divergent extension and gravity gliding was a major mechanism in formation of the carbonate Jelar breccia in general.

Izvorni jezik
Engleski

Znanstvena područja
Geologija



POVEZANOST RADA


Projekti:
HRZZ-IP-2014-09-9666 - Velebit od vrha do dna - multidisciplinanro istraživanje seizmoloških značajki i tektonike područja Velebita (VELEBIT) (Herak, Marijan, HRZZ - 2014-09) ( POIROT)

Ustanove:
Rudarsko-geološko-naftni fakultet, Zagreb,
Sveučilište u Zagrebu

Profili:

Avatar Url Igor Vlahović (autor)

Avatar Url Bojan Matoš (autor)

Avatar Url Bruno Tomljenović (autor)


Citiraj ovu publikaciju:

Tomljenović, Bruno; Balling, Philipp, Schmid, M.Stefan; Ustaszewski, Kamil; Matoš, Bojan; Vlahović, Igor; Blažok, Lovro; Posarić, Dino; Širol, Andre
Structure and tectonic evolution of the Velebit Mt. in the central part of the External Dinarides // Knjiga sažetaka - Abstracts Book / Horvat, Marija ; Matoš, Bojan ; Wacha, Lara (ur.).
Zagreb: Hrvatski geološki institut - Croatian Geological Survey, 2019. str. 204-204 (predavanje, međunarodna recenzija, sažetak, znanstveni)
Tomljenović, B., Balling, Philipp, Schmid, M.Stefan, Ustaszewski, K., Matoš, B., Vlahović, I., Blažok, L., Posarić, D. & Širol, A. (2019) Structure and tectonic evolution of the Velebit Mt. in the central part of the External Dinarides. U: Horvat, M., Matoš, B. & Wacha, L. (ur.)Knjiga sažetaka - Abstracts Book.
@article{article, author = {Tomljenovi\'{c}, Bruno and Ustaszewski, Kamil and Mato\v{s}, Bojan and Vlahovi\'{c}, Igor and Bla\v{z}ok, Lovro and Posari\'{c}, Dino and \v{S}irol, Andre}, year = {2019}, pages = {204-204-204}, keywords = {Velebit Mt., External Dinarides, passive roof duplex}, isbn = {978-953-6907-73-1}, title = {Structure and tectonic evolution of the Velebit Mt. in the central part of the External Dinarides}, keyword = {Velebit Mt., External Dinarides, passive roof duplex}, publisher = {Hrvatski geolo\v{s}ki institut - Croatian Geological Survey}, publisherplace = {Zagreb, Hrvatska} }
@article{article, author = {Tomljenovi\'{c}, Bruno and Ustaszewski, Kamil and Mato\v{s}, Bojan and Vlahovi\'{c}, Igor and Bla\v{z}ok, Lovro and Posari\'{c}, Dino and \v{S}irol, Andre}, year = {2019}, pages = {204-204-204}, keywords = {Velebit Mt., External Dinarides, passive roof duplex}, isbn = {978-953-6907-73-1}, title = {Structure and tectonic evolution of the Velebit Mt. in the central part of the External Dinarides}, keyword = {Velebit Mt., External Dinarides, passive roof duplex}, publisher = {Hrvatski geolo\v{s}ki institut - Croatian Geological Survey}, publisherplace = {Zagreb, Hrvatska} }




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