Geologie: Recent submissions
Anzeige der Dokumente 326-350 von 933
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New results concerning the pedo‐ and chronostratigraphy of the loess–palaeosol sequence Attenfeld (Bavaria, Germany) derived from a multi‐methodological approach
; Klasen, Nicole; ; (Journal of Quaternary Science, 2021-03-18)
Loess–palaeosol sequences (LPS) represent important records of palaeoenvironmental dynamics throughout the Quaternary. During the Pleistocene's dry and cold phases, the Danube's riverbed was one of the major sources for ... -
Choice of Pedotransfer Functions Matters when Simulating Soil Water Balance Fluxes
; ; ; ; ; ; ; (Journal of Advances in Modeling Earth Systems, 2021-03-22)
Modeling of the land surface water‐, energy‐, and carbon balance provides insight into the behavior of the Earth System, under current and future conditions. Currently, there exists a substantial variability between model ... -
Geometry of obstacle marks at instream boulders—integration of laboratory investigations and field observations
; ; ; (Earth Surface Processes and Landforms, 2021-02-05)
Obstacle marks are instream bedforms, typically composed of an upstream frontal scour hole and a downstream sediment accumulation in the vicinity of an obstacle. Local scouring at infrastructure (e.g. bridge piers) is a ... -
Deep Heat: Proxies, Miocene Ice, and an End in Sight for Paleoclimate Paradoxes?
(Paleoceanography and Paleoclimatology, 2021-03-16)
The mid Miocene represents an important target for paleoclimatic study because the atmospheric CO2 concentration ranged from near modern values to ∼800 ppm, while a large, dynamic Antarctic ice sheet was likely to have ... -
Microseismicity and Lava Flows Hint at Magmato‐Tectonic Processes Near the Southern Tip of the Fonualei Rift and Spreading Center in the Lau Basin
; Cremanns, M.; ; ; ; (Journal of Geophysical Research: Solid Earth, 2021-04-27)
Spreading centers in the proximity of back‐rolling subduction zones constitute an ideal natural laboratory to investigate the interaction of magmatism and tectonism during the early evolution of back‐arc basins. Using ... -
Mega‐scale glacial lineations formed by ice shelf grounding in the Canadian Beaufort Sea during multiple glaciations
; Dallimore, Scott; Wamsteeker, Michael; Taylor, Gary; King, Edward L.; Rohr, Kristin M. M.; Hong, Jong Kuk; Jin, Young Keun (Earth Surface Processes and Landforms, 2021-05-05)
Mega‐scale glacial lineations formed by the raking of ice shelves across the seafloor have been reported from multiple polar regions. Here, we present the first evidence of continental slope situated buried lineations in ... -
Improved understanding of dynamic water and mass budgets of high‐alpine karst systems obtained from studying a well‐defined catchment area
; Goeppert, Nadine; (Hydrological Processes, 2021-04-29)
Large areas of Europe, especially in the Alps, are covered by carbonate rocks and in many alpine regions, karst springs are important sources for drinking water supply. Because of their high variability and heterogeneity, ... -
Subsurface Moisture Regulates Himalayan Groundwater Storage and Discharge
; ; Sens‐Schönfelder, C.; ; Baidya, K. P.; ; (AGU Advances, 2021-05-18)
Through the release of groundwater, most mountain rivers run year‐round despite their small catchments and sporadic precipitation. This makes mountain ranges important sources of reliable freshwater for downstream populations ... -
Turning the Orogenic Switch: Slab‐Reversal in the Eastern Alps Recorded by Low‐Temperature Thermochronology
; ; Büttner, Lukas; ; (Geophysical Research Letters, 2021-03-15)
Many convergent orogens, such as the eastern European Alps, display an asymmetric doubly vergent wedge geometry. In doubly vergent orogens, deepest exhumation occurs above the retro‐wedge. Deep‐seismic interpretations ... -
Internal structure and palsa development at Orravatnsrústir Palsa Site (Central Iceland), investigated by means of integrated resistivity and ground‐penetrating radar methods
; (Permafrost and Periglacial Processes, 2021-03-29)
The natural cyclical development of palsas makes it difficult to use visible signs of decay as reference points for environmental change. Thus, to determine the actual development stage of a palsa, investigations of the ... -
Upscaling Sediment‐Flux‐Dependent Fluvial Bedrock Incision to Long Timescales
(Journal of Geophysical Research: Earth Surface, 2021-05-12)
Fluvial bedrock incision is driven by the impact of moving bedload particles. Mechanistic, sediment‐flux‐dependent incision models have been proposed, but the stream power incision model (SPIM) is frequently used to model ... -
Estimating water balance components in irrigated agriculture using a combined approach of soil moisture and energy balance monitoring, and numerical modelling
; Becker, Rike; Richard‐Cerda, Juan Carlos; Usman, Muhammad; aus der Beek, Tim; Merz, Ralf; (Hydrological Processes, 2021-03-11)
Information on water balance components such as evapotranspiration and groundwater recharge are crucial for water management. Due to differences in physical conditions, but also due to limited budgets, there is not one ... -
Widening of Hydrous Shear Zones During Incipient Eclogitization of Metastable Dry and Rigid Lower Crust—Holsnøy, Western Norway
; ; ; ; ; ; (Tectonics, 2021-03-15)
The partially eclogitized crustal rocks on Holsnøy in the Bergen Arcs, Norway, indicate that eclogitization is caused by the interplay of brittle and ductile deformation promoted by fluid infiltration and fluid‐rock ... -
Modelling of sediment supply from torrent catchments in the Western Alps using the sediment contributing area (SCA) approach
; Haas, Florian; ; Liébault, Frédéric; Becht, Michael (Earth Surface Processes and Landforms, 2021-02-08)
The production of coarse sediment in mountain landscapes depends mainly on the type and activity of geomorphic processes and topographic and natural conditions (e.g. vegetation cover) of these catchments. The supply of ... -
Slip Rate of the Danghe Nan Shan Thrust Fault from 10Be Exposure Dating of Folded River Terraces: Implications for the Strain Distribution in Northern Tibet
; ; Hampel, A.; (Tectonics, 2021-03-23)
The northeastward motion of the Tibetan Plateau along the Altyn Tagh strike‐slip fault causes thrust faulting in three parallel mountain ranges (Qilian Shan, Daxue Shan, and Danghe Nan Shan) in the plateau interior, and ... -
3D-Baugrundmodell der quartären Sediment des Leinetals bei Göttingen
Nix, Thomas;; Lange, Torsten; Fritz, Joachim; Sauter, Martin (2009)
Qualitativ hochwertige geowissenschaftliche Informationen zum Untergrund erhalten in der geotechnischen und planerischen Praxis zunehmende Bedeutung. Eine nachhaltige Entwicklung und Nutzung des Untergrundes erfordert, ... -
Ingenieurgeologisches 3D-Modell der Stadt Göttingen - Vom geologischen zum Parametermodell
Khojasteh, Enayat R.; Lange, Torsten;; Ptak-Fix, Thomas; Fritz, Joachim; Nix, Thomas (2008)
Dieser Beitrag erweitert die, in Fritz, J. (2007) vorgestellten Arbeiten im Rahmen eines Kooperationsprojektes zwischen dem Niedersächsischen Landesamt für Bergbau, Energie und Geologie sowie der Abteilung Angewandte ... -
Ingenieurgeologische 3D-Modellierung im Quartär des Leinetals bei Göttingen
Nix, Thomas;; Lange, Torsten; Fritz, Joachim; Sauter, Martin (2008)
Städtische Räume bieten auf den ersten Blick ungünstige Bedingungen für großräumige geowissenschaftliche Untersuchungen und die räumliche Visualisierung des Untergrundes. Dichte Bebauung, anthropogene und quasinatürliche ... -
Ingenieurgeologische Modellierung und Ansätze für die Zuordnung von Eigenschaften am Beispiel der Stadt Göttingen
Fritz, Joachim; Lange, Torsten; Nix, Thomas; Sauter, Martin; (2007)
In urbanen Räumen werden zahlreiche geologische, hydrogeologische und ingenieurgeologische Punkt- und Flächendaten unabhängig voneinander erhoben und in verschiedenen Archivierungssystemen dezentral abgelegt. In der Regel ... -
Räumliche ingenieurgeologische Modellierung im Stadtgebiet von Göttingen
; Fritz, Joachim; Nix, Thomas; Sauter, Martin (2008)
In städtischen Räumen erhobene geologische, hydrogeologische und ingenieurgeologische Punkt- und Flächendaten werden meist dezentral verwaltet. Erst durch das Überführen der unterschiedlichen Punkt- und Flächendaten in ein ... -
Kreidesandsteine auf der Lausitz (Sachsen): Hinweise zu Paläogeographie und Inversionstektonik.
(Freiberger Forschungshefte, Reihe C, 2018)Abstract: Cretaceous sandstones occur in western Lusatia as erosional relicts through mainly as pebbles and large blocks in Cenozoic river gravels. The exposed Weißig-Schullwitz Cretaceous sandstones northeast of the ... -
A chronological and palaeoenvironmental re‐evaluation of two loess‐palaeosol records in the northern Harz foreland, Germany, based on innovative modelling tools
; ; ; ; (Boreas, 2021-02-04)
The continuing development of analytical methods for investigating sedimentary records calls for iterative re‐examination of existing data sets obtained on loess‐palaeosol sequences (LPS) as archives of palaeoenvironmental ... -
Late Pleistocene to Recent Deformation in the Thick‐Skinned Fold‐and‐Thrust Belt of Northwestern Argentina (Central Calchaquí Valley, 26°S)
; ; ; ; ; ; Aranda‐Viana, R. Germán; (Tectonics, 2020-12-29)
The thick‐skinned fold‐and‐thrust belt on the eastern flank of the Andean Plateau in northwestern Argentina (NWA) is a zone of active contractional deformation characterized by fault‐bounded mountain ranges with no systematic ... -
ogs5py: A Python‐API for the OpenGeoSys 5 Scientific Modeling Package
Müller, Sebastian; Zech, Alraune; (Groundwater, 2020-06-16)
High‐performance numerical codes are an indispensable tool for hydrogeologists when modeling subsurface flow and transport systems. But as they are written in compiled languages, like C/C++ or Fortran, established software ... -
Crustal‐Scale Sheath Folding at HP Conditions in an Exhumed Alpine Subduction Zone (Tauern Window, Eastern Alps)
; ; ; Pestal, Gerhard; Pleuger, Jan (Tectonics, 2020-02-21)
We investigate a well‐preserved paleo subduction channel that preserves a coherent part of the European continental margin exposed in the central Tauern Window (Eastern Alps), with the aim of testing models of sheath fold ...
