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Showing 34801 to 34850 of 59105 works
Novel insights from Fe-isotopes into the lithological heterogeneity of Ocean Island Basalts and plume-influenced MORBs
The extent of lithological heterogeneity in the Earth’s convecting mantle is highly debated. Whilst the presence of pyroxenite in the mantle source regions of Ocean Island Basalts…
Entangled external and internal controls on submarine fan evolution: an experimental perspective
Submarine fans are formed by sediment-laden flows shed from continental margins into ocean basins. Their morphology represents the interplay of external controls such as tectonics…
Pedogenese und Diagenese der Solling-Folge (Buntsandstein, Trias) in Nordosthessen
[…] Der Beitrag untersucht pedogenetische und diagenetische Prozesse in der Solling-Folge des Buntsandsteins in Nordosthessen anhand sedimentologischer und mikroskopischer Analyse…
Integrating suspended sediment flux in large alluvial river channels: Application of a synoptic Rouse-based model to th…
A large portion of freshwater and sediment is exported to the ocean by a small number of major rivers. Many of these mega-rivers are subject to substantial anthropogenic pressures…
Fate of organic compounds during transformation of ferrihydrite in iron formations
The absence of organic compounds from Precambrian iron formations (IF) challenges the hypothesis of the biogenic origin of IF. Here we address the fate of adsorbed organic compoun…
Monitoring seasonal variations in seismic velocity and groundwater levels in Harvey, Western Australia using borehole a…
In order to explore the relationships between environmental subsurface changes and seismic velocities, we use nearly four years (2015-2018) of continuous ambient seismic noise dat…
Der seismische Katalog Hessen (SKHe)
[…] Für den seismischen Katalog Hessen (SKHe) wurden verschiedene historische und instrumentelle Erdbebenkataloge zusammengeführt und nach einer an den Schweizer Erdbebenkatalog E…
Sensitivity Analysis of a Conceptual, Lumped Model Using VARS-TOOL Applied to Western Ghats Catchments of India
The present work considers the application of Variogram Analysis of Response Surfaces Toolbox (VARS-TOOL) to identify the sensitive parameters of a rainfall-runoff model in the Ne…
Avalonia, get bent! Paleomagnetism from SW Iberia confirms the Greater Cantabrian Orocline
The amalgamation of Pangea formed the contorted Variscan-Alleghanian orogen, suturing Gondwana and Laurussia during the Carboniferous. From all swirls of this orogen, a double cur…
High Attenuation Recycled Materials as landfill liners (the HARM project) – A new concept for improved landfill liner d…
A new approach in landfill liner design which combines hydraulic containment of leachate with contaminant attenuation to improve the performance of these environmental control sys…
Event-based contact angle measurements inside porous media using time-resolved micro-computed tomography
Hypothesis Capillary-dominated multiphase flow in porous materials is strongly affected by the pore walls’ wettability. Recent micro-computed tomography (mCT) studies found unexpe…
Suspended-sediment induced stratification inferred from concentration and velocity profile measurements in the lower Ye…
Despite a multitude of models predicting sediment transport dynamics in an open-channel flow, the interaction between fluid and sediment, so to produce self-organized vertical den…
Evaluating the INLA-SPDE approach for Bayesian modeling of earthquake damages from geolocated cluster data
Modeled damage estimates are an important source of information in the hours to weeks following major earthquake disasters, but often lack sufficient spatial resolution for highli…
Das Geotopkataster des UNESCO Global Geoparks Muskauer Faltenbogen/Łuk Mużakowa, Teil 2: Seine Anwendung in der Bildung…
[…] Der Beitrag beschreibt die Anwendung des Geotopkatasters des UNESCO Global Geoparks Muskauer Faltenbogen/Łuk Mużakowa in der Bildung für nachhaltige Entwicklung (BNE). Auf Gru…
Variations in the magnetic properties of meteoritic cloudy zone
Iron and stony-iron meteorites form the Widmanstätten pattern during slow cooling. This pattern is comprised of several microstructures whose length-scale, composition and magneti…
Post-critical SsPmp and its Applications to Virtual Deep Seismic Sounding (VDSS)–3: Back-projection Imaging of the Crus…
Virtual Deep Seismic Sounding (VDSS) uses the arrival time of post-critical SsPmp relative to the direct S wave to infer Moho depth at the Pmp reflection point. Due to the large o…
Rainsplash Erosion for Natural Slopes and Rainfall Conditions
Rainsplash is significant for interrill erosion since it facilitates the movement of loosened soil frangments. Because it is a technically dicult process to measure, many studies …
Dynamics of displacement in mixed-wet porous media
We identify a distinct two-phase flow invasion pattern in a mixed-wet porous medium. Time-resolved high-resolution synchrotron X--ray imaging is used to study the invasion of wate…
Dilation of subglacial sediment governs incipient surge motion in glaciers with deformable beds
Glacier surges are quasi-periodic episodes of rapid ice flow that arise from increases in slip-rate at the ice-bed interface. The mechanisms that trigger and sustain surges are no…
Pleistocene - Holocene volcanism at the Karkar geothermal prospect, Armenia
Quaternary volcanic centres north of the Bitlis-Zagros suture in Turkey, Iran and the Caucasus represent both volcanic hazards and potential or actual geothermal energy resources.…
Spatially distributed chaos and turbulence in clouds
Spatially distributed chaos (turbulence) in the cumulus, stratocumulus, stratiform, cirrus and cirrus mammatus clouds have been studied using results of direct numerical simulatio…
Software GEBAH Vers. 1.1 am LBGR in Anwendung
[...] Dieser Bericht aus dem Landesamt für Bergbau, Geologie und Rohstoffe (LBGR) stellt die anwenderorientierte Software „GEBAH Vers. 1.1“ vor. Das Programm dient der geochemisch…
serac: a R package for ShortlivEd RAdionuclide Chronology of recent sediment cores
Short-lived radionuclides are measured in surface sediment to provide a geochronology for the past century. Age-depth models can be produced from 210Pbex activity-derived sediment…
Seismic source tracking with six degree-of-freedom ground motion observations
Back azimuth (BAz) information can be determined from combined measurements of rotations and translations at a single site. Such six degree-of-freedom (6-DoF) measurements are rea…
The architecture of an intrusion in magmatic mush
Magmatic reservoirs located in the upper crust have been shown to result from the repeated intrusions of new magmas, and spend much of the time as a crystal-rich mush. The geometr…
A Multivariate Outlier Detection Approach for Water Footprint Assessments in Shale Formations: Case Eagle Ford Play (Te…
The increasing trend on water use for hydraulic fracturing (HF) in multiple plays across the U.S. has raised the need to improve the HF water management model. Such approaches req…
Neue Daten zur Altersstellung des Rixdorfer Horizontes von Niederlehme
[...] Der Artikel präsentiert Ergebnisse absoluter Altersbestimmungen an einer autochthonen Molluskenfauna, die innerhalb des Rixdorfer Horizontes bei Niederlehme gefunden wurde. …
20 Jahre Globales Geopark Netzwerk - ein Blick zurück
[…] Das Jahr 2024 stellt einen wichtigen Meilenstein für das Globale Geopark Netzwerk dar, denn es markiert das 20-jährige Bestehen unseres weltweiten Netzwerks. 20 Jahre der Zusa…
Zwei vermeintliche Erdbeben in den Jahren 1789 in Plaue/Havel und 1876 in Werder/Havel
[...] Der Beitrag untersucht kritisch zwei in älteren Erdbebenkatalogen (z. B. von Sieberg) geführte Ereignisse im Land Brandenburg. Durch detaillierte Recherchen in historischen …
Enhanced iceberg discharge in the western North Atlantic during all Heinrich events of the last glaciation
A series of catastrophic iceberg discharges to the North Atlantic, termed Heinrich events, punctuated the last ice age. During Heinrich events, coarse terrigenous debris released …
Abyssal Circulation Driven By Near-Boundary Mixing: Water Mass Transformations and Interior Stratification
The emerging view of the abyssal circulation is that it is associated with bottom enhanced mixing, which results in downwelling in the stratified ocean interior and upwelling in a…
Geologische Specialkarte des Grossherzogthums Hessen und der angrenzenden Landesgebiete im Maassstabe von 1:50000 / Mit…
Geologische Karte 1: 50 000 mit Erläuterungen. Section Alzey der topographischen Karte des Kurfürstenthum Hessen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften…
Discriminating stacked distributary channel from palaeovalley fill sand bodies in foreland basin settings
Stacked fluvial distributary channel deposits and palaeovalley fills can form major, multi-storey sand bodies with similar thicknesses, and with lateral extents often greater than…
The role of natural clays in the sustainability of landfill liners
Engineered synthetic liners on their own are not the ideal solution to protect land, water and living beings against landfill leachate pollution. Despite their impermeability, eng…
The environmental impacts of palm oil in context
Delivering the Sustainable Development Goals (SDGs) requires balancing demands on land between agriculture (SDG 2) and biodiversity (SDG 15). The production of vegetable oils in g…
Risk Assessment for Scientific Data
This is a preprint draft of the paper that was officially published in the Data Science Journal. Please quote from the published version: http://doi.org/10.5334/dsj-2020-010. Abst…
Tectono-magmatic, sedimentary and hydrothermal history of Arsinoes and Pyrrhae Chaos, Mars
Arsinoes and Pyrrhae Chaos are two adjacent chaotic terrains located east of Valles Marineris and west of Arabia Terra, on Mars. In this work we produced a morpho‐stratigraphic ma…
On the changing role of the stratosphere on the tropospheric ozone budget: 1979-2010
We study the evolution of tropospheric ozone over the period 1979-2010 using a chemistry-climate model employing a stratosphere-troposphere chemistry scheme. By running with speci…
Rainfall and rainfall erosivity time series analysis of a small semi-arid watershed of the American Southwest
The long-term dense precipitation records provide important information to understand rainfall erosivity and soil erosion in semi-arid rangelands. This paper investigates the temp…
Nachruf Arno Semmel
[…] Der Nachruf würdigt das wissenschaftliche Lebenswerk des Geographen, Quartärgeologen und Bodenkundlers Arno Semmel. Hervorgehoben werden seine Forschungen zu periglazialen Dec…
Hydro-morphodynamics 2D modelling using a discontinuous Galerkin discretisation
The development of morphodynamic models to simulate sediment transport accurately is a challenging process that is becoming ever more important because of our increasing exploitat…
Economic incentives for raising coastal flood defenses in Europe
Extreme sea levels (ESLs) in Europe could rise by as much as one meter or more due to climate change by the end of this century. Without adaptation measures, annual damages from c…
Lessons learned from monitoring of turbidity currents and guidance for future platform designs
Turbidity currents transport globally significant volumes of sediment and organic carbon into the deep-sea and pose a hazard to critical infrastructure. Despite advances in techno…
Detection of VLF attenuation in the Earth-ionosphere waveguide caused by X-class solar flares using a global lightning …
Solar flares, energetic particles and Earth-impacting coronal mass ejections enhance ionization in the lower ionosphere, inhibiting radio wave propagation in the Earth-ionosphere …
Impact of nested moisture cycles on coastal chalk cliff failure revealed by multi seasonal seismic and topographic surv…
Cliff failure is a fundamental process shaping many coastlines worldwide. Improved insight into direct links between cliff failure and forcing mechanisms requires precise informat…
Chancengleichheit in der Deutschen Geophysikalischen Gesellschaft
Im Frühling 2017 trafen sich 15 Geophysikerinnen mit dem damaligen DGG-Präsidenten Michael Weber, um über Chancengleichheit und die Situation von weiblichen Mitgliedern innerhalb …
Uncertainty in the response of sudden stratospheric warmings and stratosphere-troposphere coupling to quadrupled CO2 co…
Major sudden stratospheric warmings (SSWs), vortex formation and final breakdown dates are key highlight points of the stratospheric polar vortex. These phenomena are relevant for…
Magnetite biomineralization in ferruginous waters and early Earth evolution
Burial of large quantities of magnetite (Fe(II)Fe(III)2O4) in iron formations (IFs) likely contributed to the protracted oxidation of Earth’s surface during the Precambrian Eons. …
E 6 – Der historische Bergbau auf Alaun- und Braunkohleflözen im Muskauer Berg-und Badepark – eine unterschätzte Lokali…
[…] Die Exkursion führte in den Berg- und Badepark von Bad Muskau, einem zentralen Teil des Muskauer Landschaftsparks, dessen geologische und montanhistorische Bedeutung lange unt…
Modelling the ecological impacts of tidal energy barrages
Tidal energy has the potential to form a key component of the energy mix of a number of countries, including the UK. Nonetheless, the deployment of tidal energy systems is associa…
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