These data are from two nearby paleoclimate archives located in southern Hungary. Both exhibit mi... more These data are from two nearby paleoclimate archives located in southern Hungary. Both exhibit millennial/sub-millennial scale, D-O-like climate variability, with significiant warming over interstadial periods. As such, dataset 1 provides stable and clumped isotope data measured at the Institute of Geological and Geochemical Research and the ETH and related calculations from land snail shell carbonates recovered from the Dunaszekcső loess record, Hungary. Dataset 2 contains 230Th/232Th activity ratios and calculated U-Th ages and stable C-O isotope data as functions of distance from top (mm) and age of the PK-6 flowstone, Bükkösd, Hungary
The data are related to an ammonium-bifluoride-based rock digestion procedure. Table S1/S2 descri... more The data are related to an ammonium-bifluoride-based rock digestion procedure. Table S1/S2 describe ion exchange chemistry procedures for hafnium, strontium and neodymium separations and purifications using micro-columns filled with AG-50W-X8 (Sr) and Ln (Hf-Nd) resins. Table S4/S4 provide information on a procedure of amplifier gain calibrations using a combination of 10(13) Ohm amplifiers for masses 172-176, as applied on the JMC-475 hafnium isotopic standard, and calculated gain factors for each measurement cycle. Table S5 lists data of calculated blank contributions for 5 USGS geological rock reference materials (GRMs), including AGV-2, BCR-2, GSP-2, RGM-2 and STM-2, based on measured total chemistry blanks and elemental concentrations of the GRMs.
Aeolian mineral dust particles below the size of 10-20 μm often experience longer distance transp... more Aeolian mineral dust particles below the size of 10-20 μm often experience longer distance transport in the atmosphere, and thus Aeolian dust is considered an important tracer of large-scale atmospheric circulation. Since ice core dust is purely Aeolian in origin, discrimination of its potential source region(s) can contribute to a better understanding of past dust activity and climatic/environmental causes. Furthermore, ice core dust source information provides critical experimental constraints for model simulations of past atmospheric circulation patterns [1,2]. However, to identify dust sources in past dust archives such as ice cores, the mineralogy and geochemistry of the wind-blown dust material must be characterized. While the amount of dust in marine cores or common terrestrial archives is sufficient for different types of analyses and even for multiple repeat measurements, dust content in ice cores is usually extremely low even for the peak dusty periods such as the Last Gla...
Our study was directed to improve the residual flexural strength and the heat resistant propertie... more Our study was directed to improve the residual flexural strength and the heat resistant properties of concrete exposed to high temperatures using different fiber cocktail loadings including steel, polymer or cellulose fibers. At first the morphology and the thermal properties of the fibers and the fiber/cement composites were investigated by SEM and TG/DTA-MS. Then the influence of fiber type and amount on residual flexural strength were tested after cooling back from 150, 500 or 800 °C temperature loadings. By adding steel, cellulose and polymer (polypropylene) fibers to cement, improvements both in post-cracking residual flexural strength and in insensitivity against explosive spalling were reached.
<p>The generally cold climate of the last glacial period was interrupted by numerous abrupt... more <p>The generally cold climate of the last glacial period was interrupted by numerous abrupt shifts to warmer interstadial conditions in the North Atlantic. The effects of this Dansgaard&#8211;Oeschger (D&#8211;O) type climatic variability have been found in a number of European and Asian terrestrial paleoclimate archives, including speleothems, lakes and loess deposits. However, only very few of the already sparse precisely dated records provide quantitative information on stadial-interstadial temperature variations over this time period. This is a major impediment to resolving the cause and geographical propagation of D-O events, as well as to understanding the impact they have on continental climates and environments.</p><p>Here we present carbonate clumped isotope (<em>&#916;<sub>47</sub></em>)-based active season paleotemperature (AST) estimates from land snails recovered from Greenland Stadial/Interstadial (GS/GI) 5 and 3 age loess at the Dunaszekcs&#337; loess site (Hungary), based on a uniquely detailed AMS <sup>14</sup>C age dataset, alongside a new flowstone (PK-6, B&#252;kk&#246;sd, Hungary) stable isotope-based temperature change record <sup>230</sup>Th-dated to 30-26 ka. Stadial ASTs of the investigated periods were found to be in the range of 7&#8211;13 &#176;C, corresponding to <em>T<sub>annual</sub></em> of 0&#8211;6 &#176;C and <em>T<sub>July</sub></em> of 11&#8211;17 &#176;C, agreeing well with the range of model simulation results for the region. Interstadial AST values reconstructed for GI-5.1 and 3 (16&#8211;18 &#176;C) indicate warm summers (<em>T<sub>July</sub></em>: 20&#8211;22 &#176;C) and relatively high annual mean temperatures (<em>T<sub>annual</sub></em>: 9&#8211;11 &#176;C), matching present-day values. The PK-6 flowstone &#948;<sup>18</sup>O<sub>calcite</sub>-based temperature change estimates (~0.2 &#8240; &#176;C<sup>&#8211;1 </sup>&#948;<sup>18</sup>O/T gradient) reveal a 7&#8211;10 &#176;C <em>T<sub>annual</sub></em> rise for the warmest phases of GI-3 and 4 compared to stadial temperatures, in very good agreement with the land snail <em>T&#916;<sub>47</sub></em> values.</p><p>Our results show that stadial-interstadial climate variability in East Central Europe was of comparable magnitude to that in Greenland. We propose that large scale ocean-atmospheric variability (NAO-AMO) imparts a major control on transmitting abrupt North Atlantic climate event signals into continental Europe during the last glacial.</p><p>&#160;</p><p>This study was funded by the Hungarian National Research, Development and Innovation Office to G&#218; (OTKA PD-108639) and SK (OTKA KH-125584). TS is grateful for the support of the Swedish Research Council (2017-03888).</p>
&lt;p&gt;In the continental stratigraphic record, paleosols are unique archives allowing ... more &lt;p&gt;In the continental stratigraphic record, paleosols are unique archives allowing for the reconstruction of ancient surface processes, paleo-ecosystems, and local- to global-scale paleoclimate conditions. Geochemical proxies derived from paleosol chemistry are powerful indicators of chemical weathering and various environmental parameters (rainfall, temperature, acidity) and provide a wealth of information to understand Earth's climatic history, but these paleosol archives also have their own limitations. Many paleosol-based proxies are applied to a limited number of paleosol profiles, as determined by outcrop exposure and quality, and most of them are not well-constrained on landscape or basin-scales, which are often the scales of interest for paleoclimate and paleoenvironmental reconstruction. Paleosol proxies including e.g., traditional stable and clumped isotopes in soil carbonates or organic matter, phytoliths, mineralogical indicators such as the goethite/hematite ratio have great potential to improve our understanding of how different terrestrial biogeochemical processes are linked in landscape scales, and how their different preservation biases could impact the interpretation of the paleosol proxy records. Here, we present geochemical data from pedogenic goethite pisoliths and nodules from Plio-Pleistocene red paleosols of the Carpathian Basin, East-Central Europe. Pisoliths and nodules are generally dominated by Fe oxides and oxihydroxides. Inorganic geochemistry and mineralogical data of these goethite pisoliths can provide a context for the depositional environment, climate, age, and origin of the red clays. Size, morphology, abundance, and location of goethite (hematite) nodules within a paleosol profile can yield valuable information on pedogenic processes and environmental conditions during soil development. Goethite is the main mineral in pisoliths and nodules beside quartz, hematite muscovite, and kaolinite. The Fe-hydroxides and Fe-oxides dominate in the samples, which is typical of aerobic environments. The goethite content varies from 55% to 82%, and the hematite from 5% to 12%. The hematite/goethite ratio is very low (0.062&amp;#8211;0.160) in the samples showing highly weathered source sediment (paleosol). Clay minerals, such as kaolinite, indicate subtropical weathering of the parent material. The major element composition demonstrates that the soluble constituents (CaO, MgO, Na&lt;sub&gt;2&lt;/sub&gt;O, and K&lt;sub&gt;2&lt;/sub&gt;O) are leached, while the insoluble constituents (SiO&lt;sub&gt;2&lt;/sub&gt;, Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;, and Fe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;) are accumulated as oxides/hydroxides during surface and sub-surface weathering processes. A concentric laminae fabric was not observed in any of the examined samples, which indicates the development of pisoliths above the water table in the unsaturated zone. The analyzed pisoliths and nodules have no protolith relics and contain less than 10&amp;#8211;15% detrital grains, showing homogeneous structures with mottled and syneresis fabrics. According to our previous research on these paleosols, the mean annual paleoprecipitation was 1100&amp;#8211;1400 mm and the mean annual paleotemperature was 13&amp;#8211;15&amp;#176;C. The studied red paleosols are weathered in a tropical/subtropical climate. In such conditions, fersiallisation and ferruginisation are the most important processes during the diagenesis of the pisoliths and nodules.&lt;/p&gt;&lt;p&gt;This research was funded by National Research, Development and Innovation Office, grant number NKFI K120213.&lt;/p&gt;
These two datasets contain the analytical results of clay mineralogy and 87Sr/86Sr, 143Nd/144Nd, ... more These two datasets contain the analytical results of clay mineralogy and 87Sr/86Sr, 143Nd/144Nd, 176Hf/177Hf and D/H (2H/1H) isotope measurements performed on last glacial dust recovered from the NGRIP ice core and fine fractions (<5 and <2 micron) of potential source area samples (modern/last glacial) collected around the Northern Hemisphere. The datasets include Monte Carlo simulation results to calculate squared Mahalanobis distances and mixing calculations between two end-members in the Sr-Nd-Hf isotopic space
The paper describes the investigation of the mass movements of one of the most dangerous high ban... more The paper describes the investigation of the mass movements of one of the most dangerous high banks along the River Danube at Dunaszekcso in Hungary. Cracks appeared on this part of the high bank in 2007, indicating the beginning of a new landslide. In autumn of the same year, a geodetic network for observation of the movements was created. The network was measured with GNSS-equipment, Total Stations (direction and distance measurements) and precision levels. In addition, two borehole tiltmeters were installed for continuous measurements. The relationships between the movements and the variations of hydrological, meteorological parameters and the effect of the vegetation were studied to reveal the causes of the movements. It has been found that the ground water level variation relative to the water level of the Danube strongly affects the stability of the high bank.
Highlights • Mars-analogue particulate sediments, including basaltic in origin were analyzed. • M... more Highlights • Mars-analogue particulate sediments, including basaltic in origin were analyzed. • Morphometric differences in the shapes of aeolian and fluvial grains were identified. • The ExoMars CLUPI camera will be able to distinguish the agents of deposition for grains of 100-200 micrometre size. • Aeolian grains are expected to be more mature, and differ from fluvial grains on Mars. • Local sedimentary features give important context information to assist the identification of grain origin.
Accelerator mass spectrometry (AMS) radiocarbon dating of charcoals and 10 mollusc species (+2 id... more Accelerator mass spectrometry (AMS) radiocarbon dating of charcoals and 10 mollusc species (+2 identified at the family level) yield 64 new ages from the Dunaszekcső loess record, Hungary. Charcoal 14 C ages are found to be protocol-dependent, with ages obtained from the high temperature (800 ºC) fraction of the two-step combustion (TSC) protocol being always the oldest and likely most reliable. One step combustion (OSC) at 1000 ºC produces comparable ages with those obtained from the low temperature (400 ºC) fraction of the TSC protocol. Discrepancies between the ABA-TSC 400 and TSC 800 ages become larger for older, and less well-preserved charcoal fragments. Testing of shell ages against those of charcoals reveals that Succineidae sp., Chondrula tridens, Trochulus hispidus and members of the family Clausiliidae yield 14 C ages that are statistically indistinguishable from charcoals recovered from the same stratigraphic interval, or with the ABA-TSC 800 charcoal age. Thus, *Manuscript Click here to view linked References these species show great potential for creating accurate and precise chronologies for loess records within the useful range (<~40 ka) of 14 C-dating of land snails. Conservative estimates of 95% uncertainties of the resulting Bayesian age-depth models are in the range of 500-800 yr. However, these uncertainties are strongly dependent on the number of dates available and the resolution of sampling, but they are usually well below those of luminescence chronologies.
Day two 13 2.3 Field stop 3: Pécs-Vasas, open pit coal mine; Lower Jurassic coal-bearing sequence... more Day two 13 2.3 Field stop 3: Pécs-Vasas, open pit coal mine; Lower Jurassic coal-bearing sequence 13 2.4 Field stop 4: Apátvarasd, Réka Valley; Black shale and associated sediments related to the Early Toarcian Anoxic Event 15 2.5 Cultural programmes 17 3. References 18 Appendix-Itinerary for IMA2010 MECC Field trip 23 Évi Jelentése 1982-ről, 237-243 (in Hungarian).
Interfaith dialogue is increasingly being recognised by governments across Europe as crucial to d... more Interfaith dialogue is increasingly being recognised by governments across Europe as crucial to developing cohesive communities. This article critically analyses approaches for developing strategies to promote interfaith dialogue between individuals and/or organisations within civil society. It does this by drawing on a series of theoretical questions concerning those who are involved (and missing), what the dialogue is for, and how the dynamics of participation and representation are handled. In the process, the article considers the conditions, spaces, processes, relationships and understandings of identity that can enable successful interfaith dialogue, and how these might be developed in ways which address the issues raised. The original theoretical analysis presented in this article is supported by examples from the author's cumulative research with policymakers and practitioners across Europe since 2004.
Millennial scale warm-cold oscillations in air temperature over Greenland and rapid sea surface t... more Millennial scale warm-cold oscillations in air temperature over Greenland and rapid sea surface temperature changes were recorded in ice cores and North Atlantic sediments for the last glaciation. These events must have been associated with profound environmental changes in Europe. Indeed, millennial scale oscillations in grain size records were found in loess deposits of Europe and Asia. Unfortunately, the timing of these events are still unresolved due to chronological uncertainties on the order of thousands of years. Here we present a high precision loess chronology and derived Bayesian age-depth model from the Dunaszekcso loess record based on 48 AMS 14C ages from charcoals and mollusc shells. The age modeling used Bacon and mean 95% confidence ranges are 485 yr. Sedimentation rates calculated from the age-depth model vary between 0.6-1.7 mm year−1 and estimated bulk dust flux range from 892 to 2525 g m−2 yr−1. Both the sedimentation rate and dust flux display millennial scale v...
Можно полагать, что несколько улучшились объемные и скоростные показатели СВФ. Индекс состояния б... more Можно полагать, что несколько улучшились объемные и скоростные показатели СВФ. Индекс состояния бронхиальной проходимости был в период учебы в 93% в норме и условной норме, а умеренное нарушение бронхиальной проходимости отмечалось у 7% обследуемых. В период рекреации индекс состояния бронхиальной проходимости был у 92% обследуемых в состоянии нормы и условной нормы, а у 8%-состоянии умеренного нарушения бронхиальной проходимости. Проба Тиффно, МОС75,50,25, МОС 25-75, ПОС выдоха и ПОС вдоха являются наиболее информативными, отражающими состояние трахео-бронхиальной системы (особенно 4-х первых). Можно полагать, что двухнедельный активный отдых не позволил существенно измениться функции внешнего дыхания и тем более морфометрическим показателям после применения оптимальной ДА и рекреаций, поиски улучшения функциональных показателей СВД продолжаются. Следует также отметить, что ДА студентов была повышенной в период учебы и поэтому существенных изменений СВД не наблюдалось.
GRAINS BY SCANNING ELECTRON MICROSCOPY. Zs. Kapui, A. Kereszturi, S. Józsa, Cs. Király, Z. Szalai... more GRAINS BY SCANNING ELECTRON MICROSCOPY. Zs. Kapui, A. Kereszturi, S. Józsa, Cs. Király, Z. Szalai, G. Újvári, 1 MTA Research Centre for Astronomy and Earth Sciences, Institute for Geological and Geochemical Research ([email protected]), MTA Research Centre for Astronomy and Earth Sciences, Konkoly Observatory Eötvös Loránd University, Department of Petrology and Geochemistry, MTA Research Centre for Astronomy and Earth Sciences, Geographical Institute.
These data are from two nearby paleoclimate archives located in southern Hungary. Both exhibit mi... more These data are from two nearby paleoclimate archives located in southern Hungary. Both exhibit millennial/sub-millennial scale, D-O-like climate variability, with significiant warming over interstadial periods. As such, dataset 1 provides stable and clumped isotope data measured at the Institute of Geological and Geochemical Research and the ETH and related calculations from land snail shell carbonates recovered from the Dunaszekcső loess record, Hungary. Dataset 2 contains 230Th/232Th activity ratios and calculated U-Th ages and stable C-O isotope data as functions of distance from top (mm) and age of the PK-6 flowstone, Bükkösd, Hungary
The data are related to an ammonium-bifluoride-based rock digestion procedure. Table S1/S2 descri... more The data are related to an ammonium-bifluoride-based rock digestion procedure. Table S1/S2 describe ion exchange chemistry procedures for hafnium, strontium and neodymium separations and purifications using micro-columns filled with AG-50W-X8 (Sr) and Ln (Hf-Nd) resins. Table S4/S4 provide information on a procedure of amplifier gain calibrations using a combination of 10(13) Ohm amplifiers for masses 172-176, as applied on the JMC-475 hafnium isotopic standard, and calculated gain factors for each measurement cycle. Table S5 lists data of calculated blank contributions for 5 USGS geological rock reference materials (GRMs), including AGV-2, BCR-2, GSP-2, RGM-2 and STM-2, based on measured total chemistry blanks and elemental concentrations of the GRMs.
Aeolian mineral dust particles below the size of 10-20 μm often experience longer distance transp... more Aeolian mineral dust particles below the size of 10-20 μm often experience longer distance transport in the atmosphere, and thus Aeolian dust is considered an important tracer of large-scale atmospheric circulation. Since ice core dust is purely Aeolian in origin, discrimination of its potential source region(s) can contribute to a better understanding of past dust activity and climatic/environmental causes. Furthermore, ice core dust source information provides critical experimental constraints for model simulations of past atmospheric circulation patterns [1,2]. However, to identify dust sources in past dust archives such as ice cores, the mineralogy and geochemistry of the wind-blown dust material must be characterized. While the amount of dust in marine cores or common terrestrial archives is sufficient for different types of analyses and even for multiple repeat measurements, dust content in ice cores is usually extremely low even for the peak dusty periods such as the Last Gla...
Our study was directed to improve the residual flexural strength and the heat resistant propertie... more Our study was directed to improve the residual flexural strength and the heat resistant properties of concrete exposed to high temperatures using different fiber cocktail loadings including steel, polymer or cellulose fibers. At first the morphology and the thermal properties of the fibers and the fiber/cement composites were investigated by SEM and TG/DTA-MS. Then the influence of fiber type and amount on residual flexural strength were tested after cooling back from 150, 500 or 800 °C temperature loadings. By adding steel, cellulose and polymer (polypropylene) fibers to cement, improvements both in post-cracking residual flexural strength and in insensitivity against explosive spalling were reached.
<p>The generally cold climate of the last glacial period was interrupted by numerous abrupt... more <p>The generally cold climate of the last glacial period was interrupted by numerous abrupt shifts to warmer interstadial conditions in the North Atlantic. The effects of this Dansgaard&#8211;Oeschger (D&#8211;O) type climatic variability have been found in a number of European and Asian terrestrial paleoclimate archives, including speleothems, lakes and loess deposits. However, only very few of the already sparse precisely dated records provide quantitative information on stadial-interstadial temperature variations over this time period. This is a major impediment to resolving the cause and geographical propagation of D-O events, as well as to understanding the impact they have on continental climates and environments.</p><p>Here we present carbonate clumped isotope (<em>&#916;<sub>47</sub></em>)-based active season paleotemperature (AST) estimates from land snails recovered from Greenland Stadial/Interstadial (GS/GI) 5 and 3 age loess at the Dunaszekcs&#337; loess site (Hungary), based on a uniquely detailed AMS <sup>14</sup>C age dataset, alongside a new flowstone (PK-6, B&#252;kk&#246;sd, Hungary) stable isotope-based temperature change record <sup>230</sup>Th-dated to 30-26 ka. Stadial ASTs of the investigated periods were found to be in the range of 7&#8211;13 &#176;C, corresponding to <em>T<sub>annual</sub></em> of 0&#8211;6 &#176;C and <em>T<sub>July</sub></em> of 11&#8211;17 &#176;C, agreeing well with the range of model simulation results for the region. Interstadial AST values reconstructed for GI-5.1 and 3 (16&#8211;18 &#176;C) indicate warm summers (<em>T<sub>July</sub></em>: 20&#8211;22 &#176;C) and relatively high annual mean temperatures (<em>T<sub>annual</sub></em>: 9&#8211;11 &#176;C), matching present-day values. The PK-6 flowstone &#948;<sup>18</sup>O<sub>calcite</sub>-based temperature change estimates (~0.2 &#8240; &#176;C<sup>&#8211;1 </sup>&#948;<sup>18</sup>O/T gradient) reveal a 7&#8211;10 &#176;C <em>T<sub>annual</sub></em> rise for the warmest phases of GI-3 and 4 compared to stadial temperatures, in very good agreement with the land snail <em>T&#916;<sub>47</sub></em> values.</p><p>Our results show that stadial-interstadial climate variability in East Central Europe was of comparable magnitude to that in Greenland. We propose that large scale ocean-atmospheric variability (NAO-AMO) imparts a major control on transmitting abrupt North Atlantic climate event signals into continental Europe during the last glacial.</p><p>&#160;</p><p>This study was funded by the Hungarian National Research, Development and Innovation Office to G&#218; (OTKA PD-108639) and SK (OTKA KH-125584). TS is grateful for the support of the Swedish Research Council (2017-03888).</p>
&lt;p&gt;In the continental stratigraphic record, paleosols are unique archives allowing ... more &lt;p&gt;In the continental stratigraphic record, paleosols are unique archives allowing for the reconstruction of ancient surface processes, paleo-ecosystems, and local- to global-scale paleoclimate conditions. Geochemical proxies derived from paleosol chemistry are powerful indicators of chemical weathering and various environmental parameters (rainfall, temperature, acidity) and provide a wealth of information to understand Earth's climatic history, but these paleosol archives also have their own limitations. Many paleosol-based proxies are applied to a limited number of paleosol profiles, as determined by outcrop exposure and quality, and most of them are not well-constrained on landscape or basin-scales, which are often the scales of interest for paleoclimate and paleoenvironmental reconstruction. Paleosol proxies including e.g., traditional stable and clumped isotopes in soil carbonates or organic matter, phytoliths, mineralogical indicators such as the goethite/hematite ratio have great potential to improve our understanding of how different terrestrial biogeochemical processes are linked in landscape scales, and how their different preservation biases could impact the interpretation of the paleosol proxy records. Here, we present geochemical data from pedogenic goethite pisoliths and nodules from Plio-Pleistocene red paleosols of the Carpathian Basin, East-Central Europe. Pisoliths and nodules are generally dominated by Fe oxides and oxihydroxides. Inorganic geochemistry and mineralogical data of these goethite pisoliths can provide a context for the depositional environment, climate, age, and origin of the red clays. Size, morphology, abundance, and location of goethite (hematite) nodules within a paleosol profile can yield valuable information on pedogenic processes and environmental conditions during soil development. Goethite is the main mineral in pisoliths and nodules beside quartz, hematite muscovite, and kaolinite. The Fe-hydroxides and Fe-oxides dominate in the samples, which is typical of aerobic environments. The goethite content varies from 55% to 82%, and the hematite from 5% to 12%. The hematite/goethite ratio is very low (0.062&amp;#8211;0.160) in the samples showing highly weathered source sediment (paleosol). Clay minerals, such as kaolinite, indicate subtropical weathering of the parent material. The major element composition demonstrates that the soluble constituents (CaO, MgO, Na&lt;sub&gt;2&lt;/sub&gt;O, and K&lt;sub&gt;2&lt;/sub&gt;O) are leached, while the insoluble constituents (SiO&lt;sub&gt;2&lt;/sub&gt;, Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;, and Fe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;) are accumulated as oxides/hydroxides during surface and sub-surface weathering processes. A concentric laminae fabric was not observed in any of the examined samples, which indicates the development of pisoliths above the water table in the unsaturated zone. The analyzed pisoliths and nodules have no protolith relics and contain less than 10&amp;#8211;15% detrital grains, showing homogeneous structures with mottled and syneresis fabrics. According to our previous research on these paleosols, the mean annual paleoprecipitation was 1100&amp;#8211;1400 mm and the mean annual paleotemperature was 13&amp;#8211;15&amp;#176;C. The studied red paleosols are weathered in a tropical/subtropical climate. In such conditions, fersiallisation and ferruginisation are the most important processes during the diagenesis of the pisoliths and nodules.&lt;/p&gt;&lt;p&gt;This research was funded by National Research, Development and Innovation Office, grant number NKFI K120213.&lt;/p&gt;
These two datasets contain the analytical results of clay mineralogy and 87Sr/86Sr, 143Nd/144Nd, ... more These two datasets contain the analytical results of clay mineralogy and 87Sr/86Sr, 143Nd/144Nd, 176Hf/177Hf and D/H (2H/1H) isotope measurements performed on last glacial dust recovered from the NGRIP ice core and fine fractions (<5 and <2 micron) of potential source area samples (modern/last glacial) collected around the Northern Hemisphere. The datasets include Monte Carlo simulation results to calculate squared Mahalanobis distances and mixing calculations between two end-members in the Sr-Nd-Hf isotopic space
The paper describes the investigation of the mass movements of one of the most dangerous high ban... more The paper describes the investigation of the mass movements of one of the most dangerous high banks along the River Danube at Dunaszekcso in Hungary. Cracks appeared on this part of the high bank in 2007, indicating the beginning of a new landslide. In autumn of the same year, a geodetic network for observation of the movements was created. The network was measured with GNSS-equipment, Total Stations (direction and distance measurements) and precision levels. In addition, two borehole tiltmeters were installed for continuous measurements. The relationships between the movements and the variations of hydrological, meteorological parameters and the effect of the vegetation were studied to reveal the causes of the movements. It has been found that the ground water level variation relative to the water level of the Danube strongly affects the stability of the high bank.
Highlights • Mars-analogue particulate sediments, including basaltic in origin were analyzed. • M... more Highlights • Mars-analogue particulate sediments, including basaltic in origin were analyzed. • Morphometric differences in the shapes of aeolian and fluvial grains were identified. • The ExoMars CLUPI camera will be able to distinguish the agents of deposition for grains of 100-200 micrometre size. • Aeolian grains are expected to be more mature, and differ from fluvial grains on Mars. • Local sedimentary features give important context information to assist the identification of grain origin.
Accelerator mass spectrometry (AMS) radiocarbon dating of charcoals and 10 mollusc species (+2 id... more Accelerator mass spectrometry (AMS) radiocarbon dating of charcoals and 10 mollusc species (+2 identified at the family level) yield 64 new ages from the Dunaszekcső loess record, Hungary. Charcoal 14 C ages are found to be protocol-dependent, with ages obtained from the high temperature (800 ºC) fraction of the two-step combustion (TSC) protocol being always the oldest and likely most reliable. One step combustion (OSC) at 1000 ºC produces comparable ages with those obtained from the low temperature (400 ºC) fraction of the TSC protocol. Discrepancies between the ABA-TSC 400 and TSC 800 ages become larger for older, and less well-preserved charcoal fragments. Testing of shell ages against those of charcoals reveals that Succineidae sp., Chondrula tridens, Trochulus hispidus and members of the family Clausiliidae yield 14 C ages that are statistically indistinguishable from charcoals recovered from the same stratigraphic interval, or with the ABA-TSC 800 charcoal age. Thus, *Manuscript Click here to view linked References these species show great potential for creating accurate and precise chronologies for loess records within the useful range (<~40 ka) of 14 C-dating of land snails. Conservative estimates of 95% uncertainties of the resulting Bayesian age-depth models are in the range of 500-800 yr. However, these uncertainties are strongly dependent on the number of dates available and the resolution of sampling, but they are usually well below those of luminescence chronologies.
Day two 13 2.3 Field stop 3: Pécs-Vasas, open pit coal mine; Lower Jurassic coal-bearing sequence... more Day two 13 2.3 Field stop 3: Pécs-Vasas, open pit coal mine; Lower Jurassic coal-bearing sequence 13 2.4 Field stop 4: Apátvarasd, Réka Valley; Black shale and associated sediments related to the Early Toarcian Anoxic Event 15 2.5 Cultural programmes 17 3. References 18 Appendix-Itinerary for IMA2010 MECC Field trip 23 Évi Jelentése 1982-ről, 237-243 (in Hungarian).
Interfaith dialogue is increasingly being recognised by governments across Europe as crucial to d... more Interfaith dialogue is increasingly being recognised by governments across Europe as crucial to developing cohesive communities. This article critically analyses approaches for developing strategies to promote interfaith dialogue between individuals and/or organisations within civil society. It does this by drawing on a series of theoretical questions concerning those who are involved (and missing), what the dialogue is for, and how the dynamics of participation and representation are handled. In the process, the article considers the conditions, spaces, processes, relationships and understandings of identity that can enable successful interfaith dialogue, and how these might be developed in ways which address the issues raised. The original theoretical analysis presented in this article is supported by examples from the author's cumulative research with policymakers and practitioners across Europe since 2004.
Millennial scale warm-cold oscillations in air temperature over Greenland and rapid sea surface t... more Millennial scale warm-cold oscillations in air temperature over Greenland and rapid sea surface temperature changes were recorded in ice cores and North Atlantic sediments for the last glaciation. These events must have been associated with profound environmental changes in Europe. Indeed, millennial scale oscillations in grain size records were found in loess deposits of Europe and Asia. Unfortunately, the timing of these events are still unresolved due to chronological uncertainties on the order of thousands of years. Here we present a high precision loess chronology and derived Bayesian age-depth model from the Dunaszekcso loess record based on 48 AMS 14C ages from charcoals and mollusc shells. The age modeling used Bacon and mean 95% confidence ranges are 485 yr. Sedimentation rates calculated from the age-depth model vary between 0.6-1.7 mm year−1 and estimated bulk dust flux range from 892 to 2525 g m−2 yr−1. Both the sedimentation rate and dust flux display millennial scale v...
Можно полагать, что несколько улучшились объемные и скоростные показатели СВФ. Индекс состояния б... more Можно полагать, что несколько улучшились объемные и скоростные показатели СВФ. Индекс состояния бронхиальной проходимости был в период учебы в 93% в норме и условной норме, а умеренное нарушение бронхиальной проходимости отмечалось у 7% обследуемых. В период рекреации индекс состояния бронхиальной проходимости был у 92% обследуемых в состоянии нормы и условной нормы, а у 8%-состоянии умеренного нарушения бронхиальной проходимости. Проба Тиффно, МОС75,50,25, МОС 25-75, ПОС выдоха и ПОС вдоха являются наиболее информативными, отражающими состояние трахео-бронхиальной системы (особенно 4-х первых). Можно полагать, что двухнедельный активный отдых не позволил существенно измениться функции внешнего дыхания и тем более морфометрическим показателям после применения оптимальной ДА и рекреаций, поиски улучшения функциональных показателей СВД продолжаются. Следует также отметить, что ДА студентов была повышенной в период учебы и поэтому существенных изменений СВД не наблюдалось.
GRAINS BY SCANNING ELECTRON MICROSCOPY. Zs. Kapui, A. Kereszturi, S. Józsa, Cs. Király, Z. Szalai... more GRAINS BY SCANNING ELECTRON MICROSCOPY. Zs. Kapui, A. Kereszturi, S. Józsa, Cs. Király, Z. Szalai, G. Újvári, 1 MTA Research Centre for Astronomy and Earth Sciences, Institute for Geological and Geochemical Research ([email protected]), MTA Research Centre for Astronomy and Earth Sciences, Konkoly Observatory Eötvös Loránd University, Department of Petrology and Geochemistry, MTA Research Centre for Astronomy and Earth Sciences, Geographical Institute.
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