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Introduction
I aim to better understand fluid-mediated processes in the lithosphere and the mechanism of lithosphere-scale fluid transfer processes - via fluid inclusion studies.
Current institution
Additional affiliations
October 2021 - present
Institute for Earth Physics and Space Science
Position
- Senior Research Fellow
Publications
Publications (104)
Fluid and melt inclusions trapped in mantle xenoliths provide direct insights into the metasomatic agent in the lithospheric mantle, including its volatile content. We conducted 3D Raman mapping on fluid and melt inclusions in modally metasomatized mantle xenoliths from the Styrian Basin (W-Carpathian Pannonian Region) to explore how this method ca...
The reconstruction of thermal evolution in sedimentary basins is a key input for constraining geodynamic processes and geo-energy resource potential. We present a methodology to reproduce the most important transient thermal footprints accompanying basin formation: lithosphere extension and sedimentation. The forward model solving the transient hea...
The fully cored, 2150-m-deep Szombathely-II (abbreviated as Szh-II) well was drilled at the western margin of the Hungarian Danube Basin. Beneath a circa 2-km-thick Neogene post-to syn-rift basin fill, the well not only reached the pre-rift Upper Austroalpine (UAA) basement with its slightly metamorphosed Paleozoic units but also the underlying gre...
The origin of peralkaline rhyolites in rift settings is usually explained by prolonged crystal fractionation of basalts. However, the temporal and spatial association of peralkaline rhyolites to alkaline silica-undersaturated rocks has not been sufficiently explored. Here, we present peralkaline rhyolite glass compositions formed at a currently act...
The Styrian Basin, located in the transition zone between the Pannonian Basin and the Eastern Alps, is believed to have formed above a lithospheric wedge affected by subduction as strongly supported by geophysical data (Aradi et al., 2017; Qorbani et al., 2015). The Late Miocene-Pliocene alkali basalts sampled the subcontinental lithospheric mantle...
The Styrian Basin occupies a transitional zone between the Pannonian Basin and the Eastern Alps, and geophysical data strongly suggest its formation within a suprasubduction setting[1]. The subcontinental lithospheric mantle beneath the basin was sampled by the Late Miocene-Pliocene alkali basaltic volcanism carrying mantle xenoliths to the surface...
The Styrian Basin, located in the transition zone between the Pannonian Basin and the Eastern Alps, is thought to have formed above a lithospheric wedge affected by subduction. The Late Miocene-Pliocene alkali basalts sampled the subcontinental lithospheric mantle beneath the basin, bringing mantle xenoliths to the surface [1]. These xenoliths are...
The Styrian Basin, situated in the transition zone between the Pannonian Basin and the Eastern Alps, is believed to have formed above a lithospheric wedge, which have been affected by a subduction. The Late Miocene-Pliocene alkali basalts sampled the subcontinental lithospheric mantle beneath the area, bringing mantle xenoliths to the surface (e.g....
The reconstruction of thermal evolution in sedimentary basins is a key input for constraining geodynamic processes and geo-energy resource potential. We present a methodology to reproduce the most important transient thermal footprints accompanying basin formation: lithosphere extension and sedimentation. The forward model is extended with data ass...
Data, results, calculations, methods, experimental details, sampling, and petrography.
Rare earth elements are critical constituents for modern technologies, and some of their largest natural resource deposits are related to carbonatite systems. However, the mechanisms leading to rare earth element mineralization and the role of magmatic fluids in carbonatite systems remain poorly understood. Here, we present the first in situ charac...
This paper presents the results from a geographic information systems (GIS) workflow, which was used to analyze the spatial distribution and temporal evolution of volcanoes in the Mio-Pleistocene monogenetic Bakony-Balaton Highland Volcanic Field (BBHVF), located in the Pannonian Basin, Hungary. Volcanism occurred during the tectonic inversion in a...
The Styrian Basin, representing a possible supra-subduction setting is situated in the westernmost unit of the Carpathian-Pannonian region, in the intermediary zone between the Pannonian Basin and the Eastern Alps1,2. The evolution of the Styrian Basin was influenced by the dynamics of the Carpathian-Pannonian region. The Plio-Pleistocene alkali ba...
The Styrian Basin, situated in the transition zone between the Pannonian Basin and the Eastern Alps, is believed to have formed in supra-subduction setting. The Plio-Pleistocene alkali basalts sampled the subcontinental lithospheric mantle beneath the basin, bringing mantle xenoliths to the surface1,2. This study focuses on modally metasomatized su...
In this study, we performed high resolution 3D Raman mapping on primary multiphase fluid inclusions from a granulite and an eclogite of the Cabo Orte-gal Complex (NW Spain), the latter representing a former subduction zone environment. Several microns-sized inclusions are great targets to test the advantages and limitations of 3D Raman mapping. We...
Fluid and mineral inclusions in metamorphic rocks allow the understanding of fluid-involved processes in subduction-zones providing essential contributions to the nature of geochemical processes and element cycling in present day subduction zones. In this work, we studied ultramafic granulite from the high-pressure (HP) and high-temperature (HT) me...
The goal of this study is to compare compositions of high temperature silicate-carbonatite immiscible melts, known from melt inclusions and experiments, to compositions of silica-undersaturated volcanic rocks from continental settings, in order to improve understanding of the formation of calcite carbonatite rocks worldwide. Melt inclusions in this...
Amphiboles in the upper mantle (most frequently pargasitic in composition) have recently gained attention due to their role in the water budget and potential control on the rheology and physical discontinuity layers of the mantle. Although nominally anhydrous minerals are often analyzed with Fourier-transform infrared (FTIR) spectroscopy, amphibole...
Single-lithology and composite xenoliths from Mindszentkálla (Bakony-Balaton Highland Volcanic Field) in the Carpathian-Pannonian region record geochemical evolution of the subcontinental lithospheric mantle. The dominant single-lithology xenoliths are orthopyroxene-rich (22 vol% on average) harzburgites. Three composite xenoliths contain either tw...
A detailed petrographic and mineralogical investigation of olivine-phlogopite micro-ijolite xenoliths from Oldoinyo Lengai, Tanzania indicates a complex evolutional history. These xenoliths consist of diverse textural subdomains characterized by minerals ranging from early-formed olivine, through diopside-hosted perovskite and phlogopite, to evolve...
We carried out 3D Raman imaging on primary multiphase fluid inclusions (MFI), found in granulites and eclogites of the Cabo Ortegal Complex (NW Spain), the latter representing rocks from a former subduction zone. These several micrometer-sized MFI contain complex mineral assemblages of sheet silicates, carbonates and a residual fluid phase, therefo...
Deep fluids in subduction zones and high-grade metamorphic environments are commonly aqueous and carbonic and thus solute-rich in many cases. Once these fluids are trapped as inclusions by the host mineral (e.g., garnet), the post-entrapment cooling would facilitate crystallization of intergrowing solids, generally consisting of carbonates and sili...
Primary multiphase fluid inclusions (MFI) were studied in one eclogite and two granulites from the Cabo Ortegal Complex (COC, NW‐Spain) by means of Raman imaging, SEM‐EDS and FIB‐SEM. Complementary, secondary MFI in pyroxenites from COC were also investigated. MFI hosted in eclogite and granulites occur along growth zones or in 3D clusters in garne...
This study presents the compositional data of perovskite-hosted melt inclusions (n ~336) in a
cumulate collected from Kerimasi volcano along the Gregory Rift, Tanzania. Kerimasi volcano
is associated with alkaline-carbonatite rocks. Based on petrography, Raman spectroscopy and
scanning electron microscopy with energy-dispersive X-ray spectroscopy (...
Black Belly is a tuff ring bedded pyroclastic sequence which contains olivine-melilititesonly without lava flow Oldoinyo Lengai (OL) lies in the North Tanzanian Divergence, a volcanic belt on the Ngorongoro-Kilimanjaro line. On this line, there are basaltic shields, composite cones built by heterogeneous lava compositions (melilitites, basalts, nep...
Subduction zone fluids play an essential role in large-scale transport processes between the down-going slab and the overlying upper mantle, inducing earthquakes and metasomatism. Fluid inclusions, trapped in high pressure rocks, originating from such environments, yield direct information on the nature and chemistry of these fluids. Here a descrip...
Apart from the lithosphere-asthenosphere boundary (LAB), mid-lithospheric discontinuities (MLDs) in thick and old continental lithospheres appear to play an important role in global plate tectonics. Initiation of intra-continental subduction, delamination of the lower continental lithospheric mantle and removal of cratonic roots are likely to occur...
Sulfides from lherzolite and wehrlite xenoliths from the Nógrád-Gömör Volcanic Field (NGVF), located in the Northern Pannonian Basin, were studied to understand the behavior of chalcophile and siderophile elements during mafic melt – peridotite interaction. We applied in situ methods to analyze the major and trace elements, as well as Fe isotope co...
Silicate melt inclusions (SMI) containing several daughter minerals, residual glass, and a CO 2 bubble were analyzed to constrain the composition and evolution of the metasomatic melt present in the upper mantle beneath the Nógrád-Gömör Volcanic Field (NGVF), northern Hungary to southern Slovakia. The SMI were analyzed with a combination of Raman s...
Silicate melt inclusions (SMI) containing several daughter minerals, residual glass, and a CO2 bubble were analyzed to constrain the composition and evolution of the metasomatic melt present in the upper mantle beneath the Nógrád-Gömör Volcanic Field (NGVF), northern Hungary to southern Slovakia. The SMI were analyzed with a combination of Raman sp...
Incorporation of hydrogen as structural hydroxyl (commonly referred to as water) in nominally anhydrous mantle minerals is known for the ‘hydrolytic weakening’ effect, which decreases the strength and electrical resistivity of the rock. Recent models have provided means of calculating rheological properties from geochemical data of upper mantle xen...
Az Oldoinyo Lengai esetében a vulkanitok által felszínre hozott intruzív kőzetzárványok vizsgálatánál fontos a titanit, mely jelentős akcesszórikus ásványa az ijolitanyagú xenolitoknak (Dawson et al., 1995). A titanit ásványtani és ásványkémiai tulajdonságai számos módon kihasználhatók a kőzetfejlődés fizikai és kémiai viszonyainak (p, T, fSiO2) re...
Oldoinyo Lengai, located in the Gregory Rift in Tanzania, is a world-famous volcano owing to its uniqueness in producing natrocarbonatite melts and because of its extremely high CO2 flux. The volcano is constructed of highly peralkaline [PI = molar (Na2O + K2O)/Al2O3 > 2–3] nephelinite and phonolites, both of which likely coexisted with carbonate m...
We present a new model for the formation of Plio-Pleistocene alkaline basalts in the central part of the Carpathian-Pannonian region (CPR). Based on the structural hydroxyl content of clinopyroxene megacrysts, the 'water' content of their host basalts is 2.0-2.5 wt.%, typical for island arc basalts. Likewise, the source region of the host basalts i...
Earth's only active natrocarbonatite volcanism, occurring at Oldoinyo Lengai (OL), Tan-zania, suggests that natrocarbonatite melts are formed through a unique geological process. In the East African Rift, the extinct Kerimasi (KER) volcano is a neighbor of OL and also contains nephelinites hosting melt and fluid inclusions that preserve the igneous...
A Stájer-medence a Kárpát-Pannon régió nyugati szélén helyezkedik el, a Pannon-medence és a Keleti-Alpok közötti átmeneti zónában. A Stájer-medencében plio-pleisztocén alkáli bazaltok mintázták meg a medence alatti litoszféraköpenyt. A köpeny eredetű xenolitok közül ritkaságnak számító, modális metaszomatózison átesett, flogopit- és apatit-tartalmú...
Introduction The investigation of natural CO2 occurrences can help to understand the main processes in a CO2 reservoir on geological time scale. Previous results show that the most sensitive minerals are carbonates in the CO2-pore water-rock system. Hence, after CO2-flooding, firstly carbonates dissolve in the pore water, which is a result of pore...
In the last decade, the study of fluid and melt inclusions in partially melted rocks has become a key tool to acquire unprecedented information about crustal anatectic processes. In this study we report the results of the microstructural and microchemical investigation on multiphase inclusions trapped within peritectic garnet of a Neoarchean felsic...
Three spinel lherzolite xenoliths from Mt. Quincan (Queensland, northeastern Australia) were studied with special attention to their enclosed fluid inclusions. The xenoliths are deformed, have porphyroclastic textures and overall show very similar petrographic features. The only significant difference is manifested in the abundance of fluid inclusi...
Fluids and melts present or formed during high-temperature metamorphism and crustal anatexis play a fundamental role in mass and heat transfer with important consequences for the intracrustal reworking. The study of fluid and melt inclusions in partially melted rocks has become a key tool to investigate crustal melting processes and to decipher the...
Spinel-peridotite xenoliths, hosted in alkali basalts (∼15 Ma), were collected from Adam's Diggings in the western margin of the Rio Grande Rift (RGR), New Mexico, USA.We selected five representative spinel-peridotite xenoliths, showing abundant fluid inclusions (FIs). Petrographic observations allowed the distinction of two generations of fluid-in...
A miocén extenzió során jelentős kiterjedésű, szubdukciós eredetű vulkanizmus és a vulkanizmus kialakulásához köthető fluidumban gazdag környezet hozzájárulhatott ahhoz, hogy a medence alatti köpenylitoszféra gazdagodjon ezen fluidu-mokban, valamint fluidum-gazdag olvadékokban. Mindezek migrációja hozzájárulhatott a felsőköpeny vízben való dúsulásá...
A szubkontinentális litoszféraköpenyben az általában nagy H 2 O aktivitással jellemezhető, szubdukciós eredetű fluidumok (jelen munkában az illó-gazdag komponensekre fókuszálva) litosz-ferikus köpenyre kifejett metaszomatikus hatásáról széles irodalmi ismeret áll rendelkezésre (pl: Manning, 2004 és hivatkozásai). Ezzel szemben jelentősen kevesebb a...
Plio-Pleistocene alkali basaltic volcanism brought large number of mantle derived xenoliths to the surface of the Miocene extensional Pannonian Basin System (PBS). The Styrian Basin Volcanic Field (SBVF) is located at the western edge, meanwhile the Persani Mountains Volcanic Field (PMVF) at the eastern part of the PBS. Both area has a charactersit...
The Nógrád-Gömör Volcanic Field (NGVF) is located in the northern part of the Pannonian Basin, and is one of the five known xenolith bearing alkaline basalt occurrences in the region. In addition to the dominant lherzolites, great number of wehrlite xenoliths with unique textural and geochemical features have also been recognized. According to our...
The study of natural CO2 occurrences can help to understand the main processes in the CO2 reservoir on geological time scale. Mihályi-Répcelak area is one of the best known CO2 occurrence in the Pannonian Basin. The basin is filled by fluvial sediments from deep basin to delta plane facies. The CO2 was trapped in the turbiditic sandstones about 7-4...
The Nógrád-Gömör Volcanic Field (NGVF) is situated in the northern part of the Pannonian Basin, and
is one of the five known xenolith bearing Plio-Pleistocene alkaline basalt occurrences in the region.
In addition to the dominant lherzolites, a great number of wehrlite xenoliths, with particular textural
and geochemical features, have also been col...
In the last decade the study of fluid and melt inclusions in crustal anatectic rocks has become a key tool to acquire unprecedented information. In this work a detailed microstructural and microchemical study has been performed on polycrystalline inclusions trapped in peritectic garnets of felsic granulite gneisses from the Upper Deck domain, Athab...
Plio-Pleistocene alkali basaltic volcanism brought mantle-derived xenoliths to the surface at five distinct volcanic field within the Carpathian-Pannonian Region (CPR, e.g. Szabó et al., 2004). The Styrian Basin Volcanic Field (SBVF, Eastern Austria and Northern Slovenia) is the westernmost one, situated at the transition zone between the Eastern A...
Fluid inclusions (FIs) (n = 34) in spinel lherzolite xenoliths derived from the subcontinental lithospheric mantle from Jeju Island (S. Korea), the Rio Grande Rift (New-Mexico, USA) and Mt. Quincan (Australia) were analysed using confocal Raman spectroscopy. Despite the significant geographical distances, the studied rocks and their FIs show simila...
An interesting quasi-paradox of carbonatite rocks is that
the primary water soluble minerals are missing, although their
presence is unambiguously expected by experiments [1] [2].
Hence finding of all mineral phases in the melt inclusions (MI)
is essential to the description of petrogenesis of carbonatite
rocks as properly as possible. For this pur...
It is known that the majority of the Earth’s recent
atmosphere consists of nitrogen. It is, however, said that a
large fraction of nitrogen resides in the mantle. Nitrogen and
its speciation manner in the mantle has been a subject of many
studies recently (e.g., [1-3]). The reason is that nitrogen at
mantle depth exists predominantly in fluids, fro...
The Certej low sulphidation epithermal Au deposit, one of the most important ones in Romania, occurs at the southeastern part of the Apuseni Mts. within the well-known “Gold quadrangle”. It is a small-scale ore deposit in the European Goldfields Ltd, 2010 classification, with estimated reserves of 47 million tons at 1.6 g/t average Au content (i.e....
We have carried out detailed petrographic, petrophysical (EBSD), geochemical and fluid inclusion study (e.g. Raman, FTIR coupled synchrotron radiation, FIB) on spinel lherzolite xenoliths from Barombi Mbo (BM) and Nyos Lake (from Cameroon Volcanic Line) coupled with study of the water content of their nominally anhydrous minerals (NAMs). Results in...
In this study, the C-O-isotopic data from calcite at Yungul and Wilmott (Speewah. Western-Australia) are integrated with microthermometry, H2O-, CO2-content and H-He-Ar-isotopic data from fluid inclusions in genetically related calcite and fluorite to map the origin and crystallization paths of the fluids. In addition to the hydrogen isotopic compo...
Garnet brought to the surface by late Miocene granitoids at La Galite Archipelago (Central Mediterranean, Tunisia) contains abundant primary melt and fluid inclusions. Microstructural observations and mineral chemistry define the host garnet as a peritectic phase produced by biotite incongruent melting at about 800°C and 0.5 GPa, under fluid-presen...
The evolution of a carbonated nephelinitic magma can be followed by the study of a statistically significant number of melt inclusions, entrapped in co-precipitated perovskite, nepheline and magnetite in a clinopyroxene- and nepheline-rich rock (afrikandite) from Kerimasi volcano (Tanzania). Temperatures are estimated to be 1,100°C for the early st...
Upper mantle peridotite xenoliths from the Tihany Maar Volcanic Complex, Bakony–Balaton Highland Volcanic Field (Central Pannonian Basin, Hungary) contain abundant pyroxene-hosted negative crystal shaped CO2-rich fluid inclusions. The good correlation between enrichment of the clinopyroxenes in Al2O3, TiO2, Na2O, MREE and Zr, and the presence of fl...
The Plio-Pleistocene alkali basalts in the Carpa-thian–Pannonian Region brought a large amount of lithospheric mantle xenoliths to the surface. The east-ernmost and youngest alkaline basaltic volcanic field is developed in the Perşani Mountains (Eastern Transylva-nian Basin, Romania), where numerous upper mantle xenoliths have been studied (SZABÓ e...
Representative peridotite xenoliths have been selected for detailed study from three different alkali basaltic outcrops of Jeju Island (South Korea). Based on the modal composition, the majority of the studied xenoliths here is spinel lherzolite with minor amount of spinel harzburgite. All of them shows coarse grained protogranular-porphyroclastic...
Kerimasi calciocarbonatite consists principally of calcite together with lesser apatite, magnetite, and monticellite. Calcite hosts fluid and S-bearing Na-K-Ca-carbonate inclusions. Carbonatite melt and fluid inclusions occur in apatite and magnetite, and silicate melt inclusions in magnetite. This study presents statistically significant compositi...
Raman spectroscopic analysis at low (−100 °C) or high (100–200 °C) temperature is shown to be effective for detecting small amounts of H2O in CO2-rich fluid inclusions from the deep lithosphere, which have previously been thought to be water-free. Copyright © 2009 John Wiley & Sons, Ltd.
