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Scientific paper - Original scientific paper
On the evolution of Middle Triassic passive margins of the Greater Adria Plate : inferences from the study of calc-alkaline and shoshonitic tuffs from NW Croatia
Ofioliti, 48 (2023), 1; 31-46. urn:nbn:hr:169:756842
Slovenec, Damir; Horvat, Marija; Smirčić, Duje; Belak, Mirko; Badurina, Luka; Kukoč, Duje; Grgasović, Tonći; Byerly, Kevin; Vukovski, Matija; Šegvić, Branimir

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Slovenec, D., Horvat, M., Smirčić, D., Belak, M., Badurina, L., Kukoč, D. ... Šegvić, B. (2023). On the evolution of Middle Triassic passive margins of the Greater Adria Plate : inferences from the study of calc-alkaline and shoshonitic tuffs from NW Croatia. Ofioliti, 48. (1), 31-46. Retrieved from https://urn.nsk.hr/urn:nbn:hr:169:756842

Slovenec, Damir, et al. "On the evolution of Middle Triassic passive margins of the Greater Adria Plate : inferences from the study of calc-alkaline and shoshonitic tuffs from NW Croatia." Ofioliti, vol. 48, no. 1, 2023, pp. 31-46. https://urn.nsk.hr/urn:nbn:hr:169:756842

Slovenec, Damir, Marija Horvat, Duje Smirčić, Mirko Belak, Luka Badurina, Duje Kukoč, Tonći Grgasović, Kevin Byerly, Matija Vukovski and Branimir Šegvić. "On the evolution of Middle Triassic passive margins of the Greater Adria Plate : inferences from the study of calc-alkaline and shoshonitic tuffs from NW Croatia." Ofioliti 48, no. 1 (2023): 31-46. https://urn.nsk.hr/urn:nbn:hr:169:756842

Slovenec, D., et al. (2023) 'On the evolution of Middle Triassic passive margins of the Greater Adria Plate : inferences from the study of calc-alkaline and shoshonitic tuffs from NW Croatia', Ofioliti, 48(1), pp. 31-46. Available at: https://urn.nsk.hr/urn:nbn:hr:169:756842 (Accessed 27 February 2025)

Slovenec D, Horvat M, Smirčić D, Belak M, Badurina L, Kukoč D, and sur.. On the evolution of Middle Triassic passive margins of the Greater Adria Plate : inferences from the study of calc-alkaline and shoshonitic tuffs from NW Croatia. Ofioliti [Internet]. 2023 [cited 2025 February 27];48(1):31-46. Available at: https://urn.nsk.hr/urn:nbn:hr:169:756842

D. Slovenec, et al., "On the evolution of Middle Triassic passive margins of the Greater Adria Plate : inferences from the study of calc-alkaline and shoshonitic tuffs from NW Croatia", Ofioliti, vol. 48, no. 1, pp. 31-46, 2023. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:169:756842. [Accessed: 27 February 2025]

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Title (english)On the evolution of Middle Triassic passive margins of the Greater Adria Plate : inferences from the study of calc-alkaline and shoshonitic tuffs from NW Croatia
AuthorDamir Slovenec
AuthorMarija Horvat
AuthorDuje Smirčić
AuthorMirko Belak
AuthorLuka Badurina
AuthorDuje Kukoč
AuthorTonći Grgasović
AuthorKevin Byerly
AuthorMatija Vukovski
AuthorBranimir Šegvić
Author's institutionCroatian Geological Survey
Author's institutionUniversity of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
(Department of Mineralogy, Petrology and Mineral Resources)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Geology
Abstract (english)
Rhyolitic tuffs are readily found within the Northwestern Croatian Triassic Rift Basin which akems the southernmost segment of the geotectonic unit of the Southern Alps. The latter, located in the SW segment of the Zagorje-Mid-Transdanubian shear Zone, provides insights into the volcanism and geody - namic history of the passive margins of the Greater Adria Plate during the Middle Triassic. The eruptions at the time produced material that was distributed through air-fall transport and pyroclastic density currents, and after deposition gave rise to acidic pyroclastic rocks of the Pietra Verde type. These rocks are homogeneous to horizontally laminated, showing intervals of normal gradation and appear as vitroclastic, vitrocrystalloclastic, and crystalloclastic tuffs. Late Anisian-early Ladinian sub-alkaline, middle to high-K calc-alkaline, and shoshonitic tuffs feature a LREE over HREE enrichment, high LILE content, and HFSE depletion. Negative anomalies of the Nb-Ta pair, P, Sr, Eu, and Ti coupled with variable positive and negative spikes of Pb and Ba, respectively were also documented. An important contribution of the continental material in the evolution of the studied acidic rocks is attested by negative values of initial ε Nd (-2.7 to -4.95). Tuff petrogenesis essentially included melting of the heterogeneous lithospheric (subcontinental) mantle, subordinated melting of the conti - nental crust and fractional crystallization of feldspar. Studied tuffs originated in a continental margin volcanic arc(?) environment formed during an active(?) northward subduction of the Paleotethyan lithosphere beneath the Eurasian Plate or, alternatively, more likely, during the passive continental rifting along the margins of the Greater Adria Plate.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleOfioliti
Numberingvol. 48, no. 1, pp. 31-46
p-ISSN0391-2612
URN:NBNurn:nbn:hr:169:756842
Publication2023
ProjectNumber: IP-2019-04-3824
Title (croatian): Vulkano-sedimentne sukcesije sjeverozapadne Hrvatske i njihova uloga u razumijevanju geodinamike Paleotetisa tijekom srednjeg trijasa
Title (english): Revealing the Middle Triassic Paleotethyan geodynamics recorded in the volcano-sedimentary successions of NW Croatia
Acronym: GOST
Leader: Damir Slovenec
Jurisdiction: Croatia
Funding stream: Research Projects
Document URLhttps://www.ofioliti.it/index.php/ofioliti/article/view/710
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2025-02-27 13:21:03