Combined U/Pb and (U–Th)/He geochronometry of basalt maars in Western Carpathians: implications for age of intraplate volcanism and origin of zircon metasomatism

Hurai, Vratislav; Danišík, Martin; Huraiová, Monika; Paquette, Jean‐Louis; Ádám, Alexander

doi:10.1007/s00410-013-0922-1

Cited by 25 publications

(37 citation statements)

References 43 publications

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“…In the last intense eruptive phase between 1.1-1.5 Ma, 251 mostly effusive activity was recognized (Konečný et al 1995;. The latest eruptions in 252 this area was previously thought to have occurred around 400 ka (Hodejov and Fil'akovo 253 maars; Konečný et al 1995), however, new (U-Th)/He zircon dating (Hurai et al, 2013) did 254 not confirm this young age. 255…”

Section: (Stradner Kogel Klöch Steinberg) the Perşani Volcanic Fiementioning

confidence: 99%

Origin and geodynamic relationships of the Late Miocene to Quaternary alkaline basalt volcanism in the Pannonian basin, eastern–central Europe

Harangi

Jankovics

Sági

et al. 2014

Int J Earth Sci (Geol Rundsch)

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14Alkaline basaltic volcanism has been taking place in the Carpathian-Pannonian Region 15 since 11 Ma and the last eruptions occurred only at 100-500 ka. It resulted in scattered low-16 magma volume volcanic fields located mostly at the margins of the Pannonian basin. Many of 17 the basalts have compositions close to those of the primitve magmas and therefore can be 18 used to constrain the conditions of the magma generation. Low degree (2-3%) melting could 19 occur in the convective asthenosphere within the garnet-spinel transition zone. Melting started 20 at about 100 km depth and continued usually up to the base of the lithosphere. Thus, the final 21 melting pressure could indicate the ambient lithosphere-asthenosphere boundary. The 22 asthenospheric mantle source regions of the basalts were heterogeneous, presumably in small 23 scale, and included either some water or pyroxenite/eclogite lithology in addition to the fertile 24 to slightly depleted peridotite. Based on the prevailing estimated mantle potential temperature 25 This is reinforced by the detected low-velocity seismic anomalies in the upper mantle beneath 37 the volcanic fields. 38 39Manuscript Click here to download Manuscript: IJES_paper_2014_rev.docx Click here to view linked

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Section: (Stradner Kogel Klöch Steinberg) the Perşani Volcanic Fiementioning

confidence: 99%

Origin and geodynamic relationships of the Late Miocene to Quaternary alkaline basalt volcanism in the Pannonian basin, eastern–central Europe

Harangi

Jankovics

Sági

et al. 2014

Int J Earth Sci (Geol Rundsch)

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“…The megacryst assemblage also includes kaersutite and spinel. Apatite recovered from welded basaltic tuff yielded a (U-Th-Sm)/He age of 3.1 ± 0.2 Ma, whereas zircons from the same tuff layer provided a U-Pb age of 3.19 ± 0.03 Ma (Hurai et al 2013a).…”

Section: Introductionmentioning

confidence: 99%

Compositional, structural and vibrational spectroscopic characteristics of feldspar megacrysts in alkali basalts from southern Slovakia

Huraiová¹,

Lengauer²,

Abart³

et al. 2018

J. Geosci.

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Feldspar megacrysts in Late Miocene-Pliocene maars, diatremes and basaltic lava flows in the northern part of the Pan nonian Basin span the compositional range from Nasanidine, through anorthoclase to oligoclase and andesine. Newly formed An 82 plagioclase (bytownite) crystallized within composite melt inclusions hosted by the oligoclase. Powder Xray diffraction data indicate strong structural disorder diagnostic of the high albite-high sanidine series typical of magmatic feldspars. The magmatic origin is also corroborated by chemical compositions, which plot along the 700 ± 50 °C solvus, with the exception of the most sodic Ab 79 plagioclase megacryst projecting along the 600 °C isotherm. Vibrational spectroscopic records document that the basic groups of magmatic feldspars can be identified by the specific pattern of the group I and IV bands in the 350-600 cm-1 range. The IVa band at 560-570 cm-1 is diagnostic for triclinic feldspars. The anorthite and orthoclase contents can be inferred from the 506-515 cm-1 (Ia) and 473-486 cm-1 (Ib) peak separation values combined with the Ia bandwidth.

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“…Products of the Late Miocene volcanic activity are affiliated with the Podrečany Basalt Formation (Balogh et al 1981;Vass & Kraus 1985). Recent U-Pb and U-Th(He) data on zircon and apatite from Jelšovec and Pinciná maars, however, indicate their Late Pliocene ages (Hurai et al 2010(Hurai et al , 2013.…”

Section: Neogene Andesites and Rhyolitesmentioning

confidence: 99%

“…Interestingly, systematic study of zircons in primary pyroclastic deposits of the Pinciná, Fiľakovo -Hradný vrch, Hodejov, and Gemerské Dechtáre maars (Hurai et al 2010(Hurai et al , 2013 and in redeposited sediments of the Hajnáčka -Kostná dolina maar (Hurai et al 2012) did not provide any evidence for zircons inherited from proximal or distal pre-Tertiary sources. In turn, all investigated volcanic structures only contained populations of very young (2-5 Ma) magmatic zircons derived from A-type granite/syenite melts produced by advanced fractional crystallization of underplated alkali basalt (e.g., Huraiová et al 1996Huraiová et al , 2017 and entrained in younger basalt portions as zircon-bearing xenoliths or isolated zircon xenocrysts.…”

Section: Proximal Versus Distal Origin Of Heavy Minerals?mentioning

confidence: 99%

“…Two maars near Fiľakovo (Hradný vrch and Červený vrch) and Hodejov municipality were affiliated with the youngest 6 th volcanic stage according to their relationship to river terraces and their position on presumably Quaternary erosion palaeosurfaces Vass et al 2007). However, combined U/Pb and (U-Th)/He zircon and apatite geochronometry showed considerably older ages, corresponding to 2.8 ± 0.2 Ma at Hodejov and 5.5 ± 0.6 Ma at Fiľakovo -Hradný vrch (Hurai et al 2013). (Vass & Elečko 1992).…”

Section: Neogene Andesites and Rhyolitesmentioning

confidence: 99%

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Provenance study of detrital garnets and rutiles from basaltic pyroclastic rocks of Southern Slovakia (Western Carpathians)

Nemec¹,

Huraiová²

2018

Geologica Carpathica

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Detrital garnets and rutiles have been recovered from basaltic pyroclastic rocks in the northern part of the Pannonian Basin and characterized using electron probe microanalysis and imaging. All garnets are dominated by the almandine component, except for one sample dominated by spessartine. A total of three garnet groups have been distinguished according to the increased contents of grossular (Group I), pyrope (Group II) and spessartine components (Group III). Compositions of the group I and II garnets with fluctuating Ca-and relatively low Mg contents are consistent with low-to medium-grade metasediments and/or metabasites. Locally increased Mg contents could indicate higher P-T metamorphic overprint. The dominantly metamorphic origin of the Group I and II garnets (composed of > 99 % of samples) is also corroborated by chlorite, tourmaline, staurolite, ilmenite and andalusite inclusions. Spessartine-rich garnets (Group III composed of < 1 % of samples) could be genetically linked with granitoids. Detrital rutiles invariably plot within the field of metasediments metamorphosed under amphibolite-facies conditions. Possible proximal (subjacent basement sampled by ascending lava) or distal sources (catchment sediments from uplifted Central Carpathian basement) of heavy mineral assemblages are discussed.

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Combined U/Pb and (U–Th)/He geochronometry of basalt maars in Western Carpathians: implications for age of intraplate volcanism and origin of zircon metasomatism

Cited by 25 publications

References 43 publications

Origin and geodynamic relationships of the Late Miocene to Quaternary alkaline basalt volcanism in the Pannonian basin, eastern–central Europe

Origin and geodynamic relationships of the Late Miocene to Quaternary alkaline basalt volcanism in the Pannonian basin, eastern–central Europe

Compositional, structural and vibrational spectroscopic characteristics of feldspar megacrysts in alkali basalts from southern Slovakia

Provenance study of detrital garnets and rutiles from basaltic pyroclastic rocks of Southern Slovakia (Western Carpathians)

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