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Showing 8001 to 8050 of 8471 works
Vorelsterzeitliche Karsttaschen mit Terra-fusca-Füllung in der Kreide von Meerdorf im Landkreis Braunschweig
Bei Meerdorf im Landkreis Braunschweig finden sich auf der Oberfläche von mergeligen Kalken der Mucronatenschichten sack- und trichterförmige Taschen, die bis 3 m tief und mit bra…
Über altpleistozäne Kiese in der Veluwe
Die altpleistozänen Kiese der Veluwe können als zugehörige grobklastische Petrofazies zwei lithostratigraphischen Einheiten zugeteilt werden: den Schichten von Harderwijk (mit der…
Stochastische Geschwindigkeitsfelder in der expandierenden Hülle entwickelter Sterne
Die physikalischen Ursachen für das Auftreten massiver Winde bei entwickelten Sternen sind weitgehend unverstanden. Aus diesem Grund ist es bisher noch nicht gelungen, von einer e…
Das Eisstaubecken von Zesch am See / Landkreis Teltow-Fläming
[...] Der Beitrag untersucht eine geomorphologische Besonderheit im Rückland der Brandenburger Eisrandlage südlich von Berlin. Während die Endmoränen bei Zesch am See markante Höh…
An ambitious new mission seeks the origin of the moons of Mars
Two mysterious moons whirl around Mars. Despite the many missions to the planet, not a single one has focused on its satellites — or, rather, not a single successful one. Three pr…
[Neue Nr. 4225] Moringen [Northeim West] / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…
[Neue Nr. 5029] Fröttstedt / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…
August Heinrich Christian Gelpke
Anhand der Biographie des Gymnasial- und Hochschullehrers August Heinrich Christian Gelpke (1769-1842) werden folgende Aspekte untersucht: Seine Auseinandersetzung mit der rasante…
Socio-technical energy scenarios: state-of-the-art and CIB-based approaches
Energy conversion is a major source of greenhouse gas (GHG) emissions, and energy transition scenarios are a key tool for gaining a greater understanding of the possible pathways …
Torfbildende Pflanzengesellschaften in einem Quellmoor
Torfe eines Quellmoores bei Schierhorn, Krs. Harburg (Bundesrepublik Deutschland), wurden auf ihre pflanzlichen Großreste untersucht. An der Torfbildung waren verschiedene Pflanze…
Paläobiologie der Pflanzen
In vorliegendem Buch ist der Versuch gemacht worden, die Pflanzen der Vorzeit in ihrer damaligen Umwelt darzustellen. Um die Lebensbedingungen ausgestorbener Pflanzengemeinschafte…
Shaping the Huara Intrusive Complex in the Hyperarid Atacama Desert—Erosional Near‐Stasis Contrasting High Topographic …
The Atacama Desert is one of the driest and oldest deserts on Earth, with extremely low precipitation rates (<2 mm/yr). Mostly abiotic hyperarid environmental conditions prevail, …
Eruption Forecasting of Strokkur Geyser, Iceland, Using Permutation Entropy
A volcanic eruption is usually preceded by seismic precursors, but their interpretation and use for forecasting the eruption onset time remain a challenge. A part of the eruptive …
Hf-W chronology of a macrochondrule from the L5/6 chondrite Northwest Africa 8192
A large, igneous-textured, and 2 cm-sized spherical object from the L5/6 chondrite NWA 8192 was investigated for its chemical composition, petrography, O isotopic composition, and…
Overcoming the Model‐Data‐Fit Problem in Porous Media: A Quantitative Method to Compare Invasion‐Percolation Models to …
Invasion percolation (IP) models offer a computationally inexpensive way to simulate multiphase flow in porous media, but only very few studies have compared their results to actu…
Bericht über die Jahrestagung der DGMT vom 23. - 26. September 2009 in Karlsruhe
Die DGMT-Jahrestagung mit Exkursionen fand vom 23. bis 26. September 2009 im Staatlichen Museum für Naturkunde in Karlsruhe, Baden-Württemberg, statt. Die Tagung war mit über 80 T…
Small lateral air pressure gradients generated by a large chamber system have a strong effect on CO2 transport in soil
<title xmlns:mml="http://www.w3.org/1998/Math/MathML">Abstract</title><p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en">Gas transport in soils is usually assumed to …
Explorative approach to the dust evolution in binary star systems
This thesis discusses dust formation in binary systems, in particular for binary systems consisting of a Mira like star and a brown dwarf. A Mira-like star is an intermediate mass…
Evaporation Study Based on Micromodel Experiments: Comparison of Theory and Experiment
Abstract Evaporation—a key process for water exchange between soil and atmosphere—is controlled by internal water fluxes and surface vapor fluxes. Recent studies demonstrated that…
Mechanism of Uranium Removal from the Aqueous Solution by Elemental Iron
The effectiveness of elemental iron (Fe0) to remove uranium (U) from the aqueous phase has been demonstrated. While the mitigation effect is sure, discrepancies in the removal m…
The Spectrum of Slip Behaviors of a Granular Fault Gouge Analogue Governed by Rate and State Friction
Currently, it is unknown how seismic and aseismic slip influences the recurrence and magnitude of earthquakes. Modern seismic hazard assessment is therefore based on statistics co…
MHD-Modellierung der Dynamik der solaren Korona
Gegenstand der Arbeit ist die Entwicklung eines symmetriefreien magnetohydrodynamischen Modells der solaren Korona, welches sich vor allem durch seine explizite Energiegleichung v…
Feasibility of pXRF to evaluate chosen heavy metals in soil highly influenced by municipal waste disposal—A monitoring …
Sewage disposal onto agricultural land may result in the high accumulation of organic wastes, which questions the applicability of typical elemental analysis used for the soil com…
A novel seismic full waveform inversion approach for assessing the internal structure of a medieval sea dike
<title xmlns:mml="http://www.w3.org/1998/Math/MathML">Abstract</title><p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en">Coastal protection in the form of dike constr…
A Decentralized Approach for Modeling Organized Convection Based on Thermal Populations on Microgrids
In this study, a spectral model for convective transport is coupled to a thermal population model on a two‐dimensional horizontal “microgrid,” covering the typical gridbox size of…
Simulating the soil phosphorus dynamics of four long‐term field experiments with a novel phosphorus model
Phosphorus is a nonrenewable resource, which is required for crop growth and to maintain high yields. The soil P cycle is very complex, and new model approaches can lead to a bett…
Modelling future lahars controlled by different volcanic eruption scenarios at Cotopaxi (Ecuador) calibrated with the m…
Lahars are among the most hazardous mass flow processes on earth and have caused up to 23 000 casualties in single events in the recent past. The Cotopaxi volcano, 60 km southeast…
Liste der Geotope im Landkreis Potsdam-Mittelmark einschließlich Brandenburg (Havel) und Potsdam (Geotopdatenbank des L…
[...] Der Autor präsentiert einen Auszug aus der Geotopdatenbank des Landesamtes für Geowissenschaften und Rohstoffe (LGRB) für die Region Potsdam und Potsdam-Mittelmark. Die List…
Satellite to satellite tracking in the space-wise approach
The launch of the champ mission in 2000 has renewed interest in the recovery of the geopotential field from satellite observations which has been a challenging research issue for …
The banking functions of the Hungarian urban network in the early 20th century
This paper examines the impact of the Hungarian banking system on regional and urban development in the early 20th century, when local banks were important territorial elements of…
A Stochastic Representation of Temperature Fluctuations Induced by Mesoscale Gravity Waves
Ubiquitous mesoscale gravity waves generate high cooling rates important for cirrus formation. We make use of long-duration balloon observations to devise a probabilistic model de…
Rezente und fossile Böden auf niederrheinischen Terrassen und deren Deckschichten
Im Rahmen dieser Arbeit wurden im Niederrheingebiet die fossilen Böden auf den Terrassen und in den Deckschichten untersucht. Die Untersuchungen im Gelände wurden im Laboratorium …
In situ-Spannungsmessungen in Thüringen und Sachsen
[...] Die Ergebnisse der Untersuchungen erweitern und verbessern die bisherige Kenntnis über den rezenten Spannungszustand eines Teilgebietes von Mitteleuropa. Die Messergebnisse …
Moore als Archive – ein Inventar aus den „Fercher Bergen“ bei Potsdam (Brandenburg)
Abstract: The function of mires as landscape historical archives is differently assessed in the peatland literature. An example of five mires is presented here, which are invest…
Zeitschrift für Geophysik 14
Dieser Band enthält 46 Beiträge zu Themengebieten der Physik der festen Erde, des magnetischen und elektrischen Felds der Erde, der Physik der Atmophäre, der Hydrographie und der …
Comparing Methods and Defining Practical Requirements for Extracting Harmonic Tidal Components from Groundwater Level M…
The groundwater pressure response to the ubiquitous Earth and atmospheric tides provides a largely untapped opportunity to passively characterize and quantify subsurface hydro-geo…
Paired 10Be sampling of polished bedrock and erratic boulders to improve dating of glacial landforms: an example from t…
Cosmogenic nuclide dating of glacial landforms may lead to ambiguous results for ice retreat histories. The persistence of significant cosmogenic concentrations inherited from pre…
Ein speläochronologischer Beitrag zur postglazialen Klimageschichte
Höhlensinter bietet gute Voraussetzungen für die Anwendung der Radiocarbon-Datierung. Es werden einige Ergebnisse von Messungen an Stalagmiten mitgeteilt; die Untersuchung erfolgt…
From Bright Windows to Dark Spots: Snow Cover Controls Melt Pond Optical Properties During Refreezing
Melt ponds have a strong impact on the Arctic surface energy balance and the ice‐associated ecosystem because they transmit more solar radiation compared to bare ice. In the exist…
Catshark egg capsules from a Late Eocene deep-water methane-seep deposit in western Washington State, USA
Fossil catshark egg capsules, Scyliorhinotheca goederti gen. et sp. nov., are reported from a Late Eocene deep−water methane−seep calcareous deposit in western Washington State, …
Mid-infrared reflectance spectroscopy of aubrite components
Aubrites Peña Blanca Spring and Norton County were studied in the mid-infrared reflectance as part of a database for the MERTIS (Mercury Radiometer and Thermal Infrared Spectromet…
Bewertung des Staueffekts von Verwallungen zur Wiedervernässung von Hochmooren in Schleswig-Holstein anhand bodenphysik…
In Schleswig-Holstein haben sich Verwallungen als ein vielversprechendes Konzept zur Wiedervernässung als einleitender Schritt zur Renaturierung von Hochmooren dargestellt. In die…
Evolution of the Tamtsag Basin / NE-Mongolia — part II: structure and hydrocarbon potential
The Tamtsag basin in NE Mongolia is part of a widespread basin system which formed during Late Jurassic and Cretaceous times (Graham et al. 2001, Qing-Ren et al. 2003). It is fill…
Distribution and transportation pathways of marine particulate matter off Northwest Africa
Marine snow, underwater cameras, particle flux, aggregation, suspended particulate matter, particle transport. - This study focusses on the vertical distribution and transportatio…
Decomposition of flood losses by environmental and economic drivers (FloodDrivers)
Final report for DFG project „Aufteilung von Hochwasserschäden auf Umwelt- und wirtschaftliche Faktoren" / „Decomposition of flood losses by environmental and economic drivers“ (F…
Pathogen and heavy metal contamination in urban agroecosystems of northern Ghana: Influence of biochar application and …
The benefit of biochar as a soil fertility enhancer is well known and has been broadly investigated. Equally, many tropical and subtropical countries use wastewater for irrigation…
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