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Showing 34001 to 34050 of 59105 works
Dating and morpho-stratigraphy of uplifted marine terraces in the Makran subduction zone (Iran)
The western part of the Makran subduction zone (Iran) is currently experiencing active surface uplift, as attested by the presence of emerged marine terraces along the coast. To b…
Zu einigen Problemen des Altbergbaus ohne Rechtsnachfolger im Land Brandenburg
[…] Vom alten Braunkohlentiefbau in Brandenburg ausgehende Gefahren für die öffentliche Sicherheit werden in Art und Umfing dargestellt sowie Wege zur Erfassung und Sanierung alt…
A first look at dissolved Ge isotopes in marine sediments
The removal of chemical species from seawater during the precipitation of authigenic minerals is difficult to constrain but may play a major role in the global biogeochemical cycl…
Probabilistic space- and time-interaction modeling of main-shock earthquake rupture occurrence
This paper presents a probabilistic formulation for modeling earthquake rupture processes of mainshocks. A correlated multivariate Bernoulli distribution is used to model rupture …
J. H. Schroeder & A. Heinke (Hrsg.) (2002): Führer zur Geologie von Berlin und Brandenburg, Nr. 8: Geowissenschaftliche…
[...] Die Rezension stellt den 8. Band der Reihe „Führer zur Geologie von Berlin und Brandenburg“ vor, der pünktlich zum Jahr der Geowissenschaften 2002 erschien. Das Werk dokumen…
Terrestrial environmental change across the onset of the PETM and the associated impact on biomarker proxies: a caution…
The Paleocene-Eocene Thermal Maximum (PETM; ~ 56 million years ago (Ma) is the most severe carbon cycle perturbation event of the Cenozoic. Although the PETM is associated with wa…
A long-term, high-latitude record of Eocene hydrological change in the Greenland region
A range of proxy approaches have been used to reconstruct short-term changes to Earth’s hydrological cycle during the early Eocene hyperthermals. However, little is known about th…
Stratigraphy of Architectural Elements of a Buried Monogenetic Volcanic System and Implications for Geoenergy Explorati…
Large volumes of magma emplaced and deposited within sedimentary basins can have an impact on their architectural style and geological evolution. Over the last decade, continuous …
Application of multivariate statistical methods to hydrogeological property parameterisation from geotechnical and geop…
Hydrogeological data sets are often relatively sparse compared to the scale of investigation, resulting in degrees of uncertainty which, although constrained, may be considered as…
Bayesian parameter estimation for space and time interacting earthquake rupture model using historical and physics-base…
This paper presents a robust parameter estimation technique for a probabilistic earthquake hazard model that captures time and space interactions between earthquake mainshocks. Th…
Influence of dissolution on frictional properties of carbonate faults
Velocity stepping experiments have been performed on a simulated calcite gouge using an annular shear apparatus to investigate the effect of dissolution on the frictional properti…
Erscheinungen des weichselzeitigen Esrückzuges in Ostbrandenburg
[…] Neue geologische Daten aus Bohrungen und Aufschlüssen in Ostbrandenburg erhärten die von mehreren Autoren auch für westlich und östlich angrenzende Räume ausgesprochene These …
A heuristic model inversion for coupled thermo-hydro-mechanical modeling of triaxial experiments
As multiphysics geomechanical models get developed, their increasing complexity and number of parameters make it particularly difficult to calibrate against experimental data. In …
Radiation Hazard evaluation and spatial dose rate mapping in mineralized region of Siwaliks: A case study from Una, Kan…
The following work is a part of wider uranium prospecting programme of the Atomic Mineral Directorate for Exploration and Research (AMD) for mapping radioactive anomalies in miner…
The Incredible Lightness of Water Vapor
The molar mass of water vapor is significantly less than that of dry air. This makes a moist parcel lighter than a dry parcel of the same temperature and pressure. This effect is …
A physics-based approach of deep interseismic creep for viscoelastic strike-slip earthquake cycle models
Most geodetic inversions of surface deformation rates consider the depth distribution of interseismic fault slip-rate to be time invariant. However, some numerical simulations sho…
The El Niño – La Niña cycle and recent trends in supply and demand of net primary productivity in African drylands
The role of El Niño-Southern Oscillation (ENSO) in the balance between supply and demand of net primary productivity (NPP) over Africa is unclear. Here, we analyze the impact of E…
Anomalous structure of MgCO3 liquid and the buoyancy of carbonatite melts
MgCO3 is one of the most important components of mantle-derived carbonatite melts, and yet also one of the most difficult to study experimentally. Attempts to constrain its thermo…
Tätigkeitsbericht des Hessischen Landesamtes für Bodenforschung für das Geschäftsjahr 1991 (1.1.–31.12.1991)
[…] Der Tätigkeitsbericht dokumentiert die Arbeiten des Hessischen Landesamtes für Bodenforschung im Geschäftsjahr 1991 Schwerpunkte waren geologische und bodenkundliche Landesauf…
Impacts of Coal Resource Development on Surface Water Quality in a Multi-jurisdictional Watershed in the Western United…
This study focuses on water quality and quantity impacts from natural resource development on watersheds originating on Crow tribal lands in southeastern Montana. My field researc…
Field and LiDAR data observations of erosion on anthropogenic valley fills and associated landscape produced by mountai…
Mountaintop removal/valley fill coal mining (MTR/VF) in Central Appalachia has buried an estimated 4000 km of headwater streams, but the geomorphic implications of the constructed…
High-angular resolution electron backscatter diffraction as a new tool for mapping lattice distortion in geological min…
Analysis of distortions of the crystal lattice within individual mineral grains is central to the investigation of microscale processes that control and record tectonic events. Th…
Route Schematization With Polygonal Landmarks
GPS-based navigation devices use large-scale visualizations of the route, where the focus lies on turn instructions. Although efficient on the wayfinding task, this approach does …
A Scalable Algorithm for Cross-correlations of Compressed Ambient Seismic Noise
Companies and academic geophysicists are increasingly collecting continuous seismic data on denser arrays, and are looking to a variety of lossy compression methods to store and q…
Deeply buried ancient volcanoes control hydrocarbon migration in the South China Sea
Buried volcanoes are increasingly identified in the sedimentary basins both on lands and continental margins. However, their roles on the post-eruption fluid flows are still poorl…
Decomposition of Amino Acids in Water with Application to In-Situ Measurements of Enceladus, Europa and Other Hydrother…
To test the potential of using amino acid abundances as a biosignature at icy ocean worlds, we investigate whether primordial amino acids (accreted or formed by early aqueous proc…
Oberflächennahe Steine- und Erden-Rohstoffe im Land Brandenburg
[...] Die Gewinnung von Steine- und Erden-Rohstoffen stellt für das Land Brandenburg einen bedeutenden Wirtschaftsfaktor dar. Aufgrund der spezifischen geologischen Verhältnisse, …
Finite frequency inversion of cross-correlation amplitudes for ambient noise source directivity estimation
We present a new method for determining the azimuthal variation of ambient seismic noise sources, that combines the computational speed and simplicity of traditional approaches wi…
Efficient 3D large-scale forward-modeling and inversion of gravitational fields in spherical coordinates with applicati…
An efficient forward modeling algorithm for calculation of gravitational fields in spherical coordinates is developed for 3D large‐scale gravity inversion problems. 3D Gauss‐Legen…
Explaining long-range fluid pressure transients caused by oilfield wastewater disposal using the hydrogeologic principl…
Injection-induced earthquakes are now a regular occurrence across the midcontinent United States. This phenomenon is primarily caused by oilfield wastewater disposal into deep geo…
Are Detected Trends in Flood Magnitude and Shifts in the Timing of Floods of A Major River Basin in India, Linked To An…
Analyzing of trends in flood magnitude and the timing of the dates of flood occurrences of large river basins across the globe are essential for understanding changes in water ava…
Geophysikalische multi-Sensor Untersuchungen in der bodenkundlichen Landesaufnahme
[…] Der Beitrag stellt ein Pilotprojekt des LBGR vor, das erstmals 2D-seismische Untersuchungen in der Niederlausitz zur tiefengeologischen Landesaufnahme und zur Bewertung geothe…
The stratigraphic evolution of onlap in siliciclastic deep-water systems: Autogenic modulation of allogenic signals
Seafloor topography affects the sediment gravity flows that interact with it. Understanding this interaction is critical for accurate predictions of sediment distribution, paleoge…
Characterising strong force networks produced during granular shear using percolation methods: Revealing the bridge bet…
Faults, landslides and subglacial till often contain accumulations of granular debris. Their macroscopic motion is at least to some extent determined by the processes operating in…
What has Global Sensitivity Analysis ever done for us? A systematic review to support scientific advancement and to inf…
Computer models are essential tools in the earth system sciences. They underpin our search for understanding of earth system functioning and support decision- and policy-making ac…
Illuminating water cycle modifications and Earth System resilience in the Anthropocene
Fresh water – the bloodstream of the biosphere – is at the centre of the planetary drama of the Anthropocene. Water fluxes and stores regulate the Earth’s climate and are essentia…
Fast non-linear gravity inversion in spherical coordinates with application to the South American Moho
Estimating the relief of the Moho from gravity data is a computationally intensive non-linear inverse problem. What is more, the modeling must take the Earths curvature into accou…
Comment on “Earthquake-induced prompt gravity signals identified in dense array data in Japan” by Kimura et al.
A recent work by Kimura et al. (2019) (hereafter referred to as K19) claims to provide the first observational constraints on the prompt elastogravity signals (PEGS) induced by an…
Zur glazitektonischen Überprägung des oberflächennahen Untergrundes in Hamburg
[…] Der Artikel von Alf Grube behandelt die glazitektonische Überprägung des oberflächennahen Untergrundes in Hamburg. Es werden Abweichungen in der Schichtenfolge tertiärer und…
Scaled Random Number Simulation of High Correlation Coefficients for Gasoline Range Compound Concentrations
It has been common practice to plot gasoline range parameters as absolute concentrations within crude oils of either single compounds, sums of compound pairs, or the square root o…
Comparison of estimation methods for a nonstationary index-flood model in flood frequency analysis using peaks over thr…
Accurate estimation of flood frequency is crucial for designing safe infrastructures. To reduce model uncertainty, threshold modeling techniques are often useful in bringing more …
Matlab/R workflows to assess critical choices in Global Sensitivity Analysis using the SAFE toolbox
Global Sensitivity Analysis (GSA) is a set of statistical techniques to investigate the effects of the uncertainty in the input factors of a mathematical model on the model’s outp…
The vulnerability of tidal flats and multi-channel estuaries to dredging and disposal
Shipping fairways in estuaries are continuously dredged to maintain access for large vessels to major ports. However, several estuaries worldwide show adverse side effects to dred…
Geologisches Jahrbuch Hessen 2002
Band 130 enthält geowissenschaftliche Untersuchungen zu Struktur, Sedimentation und Hydrogeologie im hessischen Untergrund. Wichtige Beiträge befassen sich mit der geologischen Do…
Earthquake cycle modeling of the Cascadia subduction zone
The Cascadia subduction zone hosts great $\mathrm{M}_\mathrm{W} > 8.5$ earthquakes, but studying these events is hindered by our short observational record. Earthquake cycle si…
Dispersion, accumulation and the ultimate fate of microplastics in deep-marine environments: A review and future direct…
An estimated 8.3 billion tonnes of non-biodegradable plastic has been produced over the last 65 years. Much of this is not recycled and is disposed into the sedimentary system, ha…
Mapping geospatial processes affecting the environmental fate of agricultural pesticides in Africa
The application of agricultural pesticides in Africa has high negative effects on human health and the environment. To analyse the effect, spatial data characterizing the environm…
Determining cooling rates from mica 40Ar/39Ar thermochronology data: effect of cooling path shape
Tectonic models are commonly underpinned by metamorphic cooling rates derived from diffusive-loss thermochronology data. Such cooling ages are usually linked to temperature via Do…
Ridge Subduction and Afterslip Control Aftershock Distribution of the 2016 Mw 7.8 Ecuador Earthquake
We characterise the aftershock sequence following the 2016 Mw=7.8 Pedernales earthquake. More than 10,000 events were detected and located, with magnitudes up to 6.9. Most of the …
Taxa der Phacopinae Hawle & Corda, 1847 (Trilobita) aus dem Grenzbereich Emsium/Eifelium sowie Unter-Eifelium (Unter-/M…
[…] Aus Sammlungen des Forschungsinstituts Senckenberg werden verschiedene Vertreter der Phacopinae aus dem sogenannten Greifenstein-Kalk von Günterod, dem Greifenstein-Kalk von B…
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