Hungarian Office for Mining and Geology

Budapest, Hungary

Hungarian Office for Mining and Geology

Budapest, Hungary
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Blengini G.A.,Polytechnic University of Turin | Blengini G.A.,CNR Institute of Environmental Geology and Geoengineering | Garbarino E.,Provincia di Turin | Solar S.,Geological Survey of Slovenia | And 4 more authors.
Journal of Cleaner Production | Year: 2012

The mining/quarrying industry is a sector of industry where there are very few Life Cycle Assessment (LCA) tools, and where the role of LCA has been poorly investigated. A key issue is the integration of three inter-dependent life cycles: Project, Asset and Product. Given the unique features of mining LCAs, this Note from the Field presents a common methodology implemented within the Sustainable Aggregates Resource Management (SARMa) Project (www.sarmaproject.eu) in order to boost adoption of LCA in the aggregate industry in South Eastern Europe. The proposed methodology emphasises the importance of resource efficiency and recycling in the context of a Sustainable Supply Mix of aggregates for the construction industry. Through its adoption, aggregate producers, recyclers, and governmental planners would gain confidence with LCA tools and conduct consistent and meaningful life cycle analyses of natural and recycled aggregates. © 2011 Elsevier Ltd. All rights reserved.


Grant
Agency: European Commission | Branch: FP7 | Program: CSA-CA | Phase: NMP.2011.4.0-6 | Award Amount: 1.69M | Year: 2011

ERA-MIN will, for the first time, bring together a significant number of funding / programming agencies in support of the development of the European non-energy mineral raw materials research area and provide a discussion forum with other European stakeholders involved in non-energy mineral raw materials research. It will aim at building a mirror group to the ETP-SMR, and liaise with non-energy mineral raw materials relevant European Commission (EC) policies and programs as well as with the projects funded by the EC. This will clearly contribute to pool EU capacities, foster EU competitiveness in line with sustainable development ethics, and contribute to the EU security of supplies. ERA-MIN will contribute to the Raw Materials for a Modern Society Partnership Initiative as it develops, providing inputs from national and regional research programming agencies and their related expert institutions, establishing comprehensive coordination as a permanent feature of the European non-energy mineral raw materials research community (ENERC). ERA-MIN will provide systematic information on its activities to the ESFRI, the OECD Global Science Forum, and the ERC. ERA-MIN will pave the way for coordinated actions between several of its participants, as well as pan-European programs, in the domains of research, outreach, training, mobility, or evaluation procedures. Through these measures, ERA-MIN will help to mobilise the intellectual resources of the whole of Europe in the preparation of the plans for the future, needed to address the non-energy mineral resources related global challenges; and foster initiatives by which a unified Europe will be progressively able to act as an equal partner in collaborative enterprises with the USA, Japan, and developing countries. It will as well be a source of support to developing countries in line with the Action Plan decided by the African and EU in November 2010.


Thamo-Bozso E.,Geological and Geophysical Institute of Hungary | Kovacs L.T.,Hungarian Office for Mining and Geology | Magyari T.,MOL Plc | Marsi I.,Geological and Geophysical Institute of Hungary
Quaternary International | Year: 2014

Heavy mineral composition of the fine sand fraction in the Hungarian loess sediments provides important data about the closer sources of the loess in the Carpathian Basin. Quantitative detrital heavy mineral compositions of 216 loess, loess-like sediment, and paleosol samples were compared to each other, and to recent fluvial sands and different Cenozoic sands and sandstones of Hungary using statistical methods: cluster analysis, principal component analysis and discriminant analysis.Usually, garnet is the most frequent detrital heavy mineral in the studied loess sections, followed by chlorite, magnetite, epidote, and amphiboles. Old Loess and Young Loess have similar compositions, indicating uniform or similar sources. Based on the similarities, the garnet-rich loess sediments could originate from aeolian reworking of the floodplain sediments of the Danube and other rivers of Transdanubia, and the local Cenozoic sands of the uplifting Transdanubian Central Range and Transdanubian Hilly Region. The biotite- and tourmaline-rich loess in South Transdanubia, and the loess with high pyroxene content in the North Hungarian Range, had some material from nearby sources: weathered granitoids and volcanic rocks, respectively, or sediments of local rivers, which carried detritus of these rocks. The new results presented in this paper confirm numerous earlier ideas about the origin of loess in the Carpathian Basin, but also suggest newly identified sources of the loess particles at several locations. © 2013 Elsevier Ltd and INQUA.


Cardona A.,Autonomous University of San Luis Potosi | Cardona A.,RWTH Aachen | Varsanyi I.,University of Szeged | Kovacs L.O.,Hungarian Office for Mining and Geology | And 6 more authors.
Water-Rock Interaction - Proceedings of the 13th International Conference on Water-Rock Interaction, WRI-13 | Year: 2010

Ahydrochemical comparison between a carbonate (Mexico) and a non-carbonate (Hungary) system is presented. Major and trace elements, δ 2H and δ 18Ovalues were studied. Although the geological conditions and the concentration of the major elements were different, common features and/or processes were recognized. The main similarity was the distribution of the stable isotope δ values (meteoric and non-meteoric water), and the behavior of As and Mo oxy-anions. Mixing with highly saline water of sea origin is an important process in both areas. © 2010 Taylor & Francis Group, London.


Varsanyi I.,University of Szeged | Palcsu L.,Hungarian Academy of Sciences | Kovacs L.T.,Hungarian Office for Mining and Geology
Applied Geochemistry | Year: 2011

To establish the increase in temperature and the time span of the transition between the Late Glacial Maximum (LGM) and the Holocene, the noble gas content, 18O, 2H, 13C δ values, 3H and 14C activity and chemistry were studied in a groundwater flow system in Quaternary sediments in Hungary. The study area is a sub-basin of the Pannonian Basin, where the C isotope ratios are not influenced by carbonate reactions along the flow path, because the only water-rock interaction is ion exchange. The δ18O and δ2H values indicate a cold infiltration period, followed by warming, and, finally, warm temperature conditions. The noble gas data show that the average infiltration temperature was 3.3°C in the cold, 12.9°C in the warm, and intermediate in the transitional stage. Using the noble gas temperatures, geochemical batch modelling was performed to simulate the chemical processes. Based on the geochemical model, δ13C and 14C0 (initial radiocarbon activity) in the recharging water were calculated. Transport modelling was used to simulate the distribution of chemical components, δ18O, δ2H and 14C0, along the flow path. It was found that the main processes determining the chemical composition of the groundwater were dissolution/precipitation of calcite and dolomite during infiltration near the surface, and ion exchange along the flow path. In the recharge area the δ13C and 14C0 were controlled by dissolution and precipitation of carbonate minerals, C speciation, and fractionation processes. All these processes were influenced by the recharge temperature. NGTs calculated from the dissolved noble gas concentrations showed an average of 3.3°C for cold, and 12.9°C for warm infiltration, i.e. for the LGM and for the Holocene. The temperature difference was thus 9.1±0.8°C, which is one of the largest degree of warming detected by noble gases so far. The alkalinity indicates that carbonate reactions were unimportant along the flow path. Owing to the temperature dependence of the equilibrium constants, temperature conditions during infiltration have to be taken into consideration in radiocarbon age calculation. Dispersive transport along the flow path modified the chemical and isotopic composition of infiltrated water. The contribution of the old pore water, which was free of the 14C isotope, resulted in uncertainties in radiocarbon age determination. It was concluded that determination of the radiocarbon age or mean residence time requires detailed knowledge of the hydraulic conditions of groundwater. © 2010 Elsevier Ltd.


Kovacs G.,Hungarian Office for Mining and Geology | Radovics B.G.,MOL Hungarian Oil and Gas Public Ltd Company | Toth T.M.,University of Szeged
Journal of Geosciences (Czech Republic) | Year: 2016

Magnetic anomalies in the south-western part of the Tisia Mega Unit were drilled in different geological situations: the Helesfa serpentinite body is surrounded by a Variscan granite, while the host rocks of the Gyód serpentinite body are paragneiss and amphibolite. Nevertheless, these anomalies are on opposite sides of the Mecsekalja Shear Zone, which developed during the Variscan Orogeny. Olivine, enstatite and spinel occur as relicts in the Gyód serpentinite, while the primary ultramafic rock of the Helesfa serpentinite is totally serpentinized. Based on the major-element whole-rock geochemical data, the protolith of the two serpentinites was mainly harzburgite. Based on the similar petrography, textures, mineral composition, major-element geochemistry, as well as metamorphic and structural evolution, a close genetic relationship between the Gyód and Helesfa serpentinite bodies can be supposed. Serpentinite with pseudomorphous lizardite and chrysotile textures possibly formed during the ocean-floor metamorphism. Afterwards, an antigorite ± talc assemblage developed from the pseudomorphous serpentine texture, which is sheared and mylonitized, supposedly due to subduction. Serpentinites with similar composition and evolution are widespread in the Bohemian Massif (especially in the Polish Central-Sudetic ophiolites). © 2016, Czech Geological Society. All rights reserved.


Varsanyi I.,University of Szeged | Kovacs L.O.,Hungarian Office for Mining and Geology | Balint A.,University of Szeged
Hydrogeology Journal | Year: 2015

Hydro-chemical and isotopic data from different aquifers in the Great Hungarian Plain (the central part of the Pannonian Basin) were evaluated down to a depth of 2,740 m. The chemical and isotopic composition of water is influenced by its origin and by chemical and mixing processes. The analytical data and chemical considerations, together with geology, pressure conditions and evolution history of the area, explain the evolution of the subsurface water. Most of the samples are of meteoric origin, but there were some samples with a non-meteoric contribution, as indicated by the water stable isotopes, and these were identified as seawater trapped during the sedimentation in Lake Pannon. The sea contribution is traceable by the shifts in δ18O and δ2H and the chemical composition of the water, and is explained with an upward-driving force. Chemical considerations and spatial variability of the dissolved components suggest that distinct water bodies, each with a specific origin and chemical evolution, can be separately identified. Although in the Quaternary layers there are water bodies that can be considered to display complete flow systems (from recharge to discharge), in most water bodies present infiltration was not identified. The lack of recent recharge to several water bodies in various places and depths suggests a separation of the recharge and the discharge that occurred not in space, but in time. A possible explanation of the cessation of recharge is a significant change in the hydraulic circumstances, probably the surface elevation. © 2014, Springer-Verlag Berlin Heidelberg.

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