Origin of basaltic magmas of Perşani volcanic field, Romania: A combined whole rock and mineral scale investigation

Harangi, Szabolcs; Sági, Tamás; Seghedi, Ioan; Ntaflos, Theodoros

doi:10.1016/j.lithos.2013.08.025

Cited by 38 publications

(44 citation statements)

References 81 publications

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“…Further reducing the host Mg# would reduce estimated temperature and pressure, and hence, these results are to be considered maximum estimates. Although the Uzuka basalt is much younger, we consider these estimates representative of the crystallization conditions in the basaltic portion of the Oki-Dōzen alkalic suite, because they are consistent with results from other intraplate basaltic systems, such as those in Eastern Europe (Harangi et al 2013).…”

Section: Magma Crystallization Conditionsmentioning

confidence: 55%

A trachyte–syenite core within a basaltic nest: filtering of primitive injections by a multi-stage magma plumbing system (Oki-Dōzen, south-west Japan)

Brenna

Nakada

Miura

et al. 2015

Contrib Mineral Petrol

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that distinguish it from the rest of the system. Geochemical modelling indicates that magmatic differentiation through crystal fractionation and minor crustal assimilation occurred in crustal and shallow sub-volcanic magma reservoirs. In the central part of the system, a number of vertically spaced reservoirs acted as a filter, capturing basaltic dykes and hindering their ascent. In the outer region, dykes either reached the surface unhindered and erupted to form the basaltic/trachybasaltic succession or stalled at crustal levels and differentiated to trachyte before forming dispersed domes/flows. The central plumbing system "filter" resulted in a nest-shaped volcano, with a trachytic core surrounded by basaltic products, and stopped direct injection of basaltic magmas into the shallow syenitic magma reservoir, likely preventing its destabilization and explosive eruption.

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Section: Magma Crystallization Conditionsmentioning

confidence: 55%

A trachyte–syenite core within a basaltic nest: filtering of primitive injections by a multi-stage magma plumbing system (Oki-Dōzen, south-west Japan)

Brenna

Nakada

Miura

et al. 2015

Contrib Mineral Petrol

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“…During the first volcanic stage, the intermittent lava dome extrusions were separated by relatively long dormant periods even exceeding 100 kyr. This stage involved lava-dome collapse events, vulcanian and subplinian to plinian explosive eruptions (Harangi, Lukács, Harangi et al, 2013). This stage involved lava-dome collapse events, vulcanian and subplinian to plinian explosive eruptions (Harangi, Lukács, Harangi et al, 2013).…”

Section: Ciomadul Volcanic Dome Fieldmentioning

confidence: 99%

“…Another Pleistocene monogenetic basalt volcanic field is approximately 40 km from the Ciomadul, at the southeastern part of the Carpathian-Pannonian Region (Figure 1), at the boundary between the Perşani Mountains and the Transylvanian basin Harangi et al, 2013;Seghedi et al, 2016;Seghedi & Szakács, 1994). Basaltic volcanism occurred here between 1.14 Ma and 683 ka (Panaiotu et al, 2004(Panaiotu et al, , 2013 and formed several volcanic centers accompanied by maars, scoriacones, and lava flows.…”

Section: 1029/2018gc008153mentioning

confidence: 99%

“…Thus, the primary magmas of Ciomadul could be also characterized by such isotope ratio. Furthermore, if we assume the U (1.5 ppm) and Th (5.5 ppm) contents of the Persani basalts (Harangi et al, 2013), the magma-aging model is still not a viable process to provide the required 4 He addition and generate the low 3 He/ 4 He for Ciomadul gases. Using these data, the magmaaging model calculation yield 3 He/ 4 He ratio around 4.65 R a after 30 kyr ( Figure 6).…”

Section: Geochemistry Geophysics Geosystemsmentioning

confidence: 99%

“…The second volcanic stage was characterized by initial lava dome effusion and then, after approximately 40 kyr of quiescence, a more explosive volcanic activity occurred (from 57 to 30 ka, Harangi et al, 2010;Karátson et al, 2016;Molnár et al, 2018Molnár et al, , 2019Moriya et al, 1995Moriya et al, , 1996Vinkler et al, 2007). This stage involved lava-dome collapse events, vulcanian and subplinian to plinian explosive eruptions (Harangi, Lukács, Harangi et al, 2013). (b) Geotectonic model of the Persani and Ciomadul volcanic areas.…”

Section: Ciomadul Volcanic Dome Fieldmentioning

confidence: 99%

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Noble Gas and Carbon Isotope Systematics at the Seemingly Inactive Ciomadul Volcano (Eastern‐Central Europe, Romania): Evidence for Volcanic Degassing

Kis

Caracausi

Palcsu

et al. 2019

Geochem Geophys Geosyst

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Ciomadul is the youngest volcano in the Carpathian‐Pannonian Region, Eastern‐Central Europe, which last erupted 30 ka. This volcano is considered to be inactive, however, combined evidence from petrologic and magnetotelluric data, as well as seismic tomography studies, suggests the existence of a subvolcanic crystal mush with variable melt content. The volcanic area is characterized by high CO2 gas output rate, with a minimum of 8.7 × 103 t/year. We investigated 31 gas emissions at Ciomadul to constrain the origin of the volatiles. The δ13C–CO2 and 3He/4He compositions suggest the outgassing of a significant component of mantle‐derived fluids. The He isotope signature in the outgassing fluids (up to 3.10 Ra) is lower than the values in the peridotite xenoliths of the nearby alkaline basalt volcanic field (R/Ra 5.95 Ra ± 0.01), which are representative of a continental lithospheric mantle and significantly lower than MORB values. Considering the chemical characteristics of the Ciomadul dacite, including trace element and Sr–Nd and O isotope compositions, an upper crustal contamination is less probable, whereas the primary magmas could have been derived from an enriched mantle source. The low He isotopic ratios could indicate a strongly metasomatized mantle lithosphere. This could be due to infiltration of subduction‐related fluids and postmetasomatic ingrowth of radiogenic He. The metasomatic fluids are inferred to have contained subducted carbonate material resulting in a heavier carbon isotope composition (δ13C is in the range of −1.4‰ to −4.6‰) and an increase of CO2/3He ratio. Our study shows the magmatic contribution to the emitted gases.

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Rates and Timescales of Magma Transfer, Storage, Emplacement, and Eruption

Petrelli

Zellmer

2020

Dynamic Magma Evolution

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Origin of basaltic magmas of Perşani volcanic field, Romania: A combined whole rock and mineral scale investigation

Cited by 38 publications

References 81 publications

A trachyte–syenite core within a basaltic nest: filtering of primitive injections by a multi-stage magma plumbing system (Oki-Dōzen, south-west Japan)

A trachyte–syenite core within a basaltic nest: filtering of primitive injections by a multi-stage magma plumbing system (Oki-Dōzen, south-west Japan)

Noble Gas and Carbon Isotope Systematics at the Seemingly Inactive Ciomadul Volcano (Eastern‐Central Europe, Romania): Evidence for Volcanic Degassing

Rates and Timescales of Magma Transfer, Storage, Emplacement, and Eruption

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