Geologie: Recent submissions
Now showing items 1-25 of 743
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Scaling Laws in Aeolian Sand Transport Under Low Sand Availability
(Geophysical Research Letters, 2022-05-31)The transport of sand by wind shapes the Earth's surface and constitutes one major factor for the emission of dust aerosols. The accurate modeling of wind‐blown sand transport is thus important to achieve reliable climate ... -
From Dynamic Groundwater Level Measurements to Regional Aquifer Parameters— Assessing the Power of Spectral Analysis
; ; ; ; (Water Resources Research, 2022-05-24)
Large‐scale groundwater models are required to estimate groundwater availability and to inform water management strategies on the national scale. However, parameterization of large‐scale groundwater models covering areas ... -
Strain Signals Governed by Frictional‐Elastoplastic Interaction of the Upper Plate and Shallow Subduction Megathrust Interface Over Seismic Cycles
; ; (Tectonics, 2022-05-03)
The behavior of the shallow portion of the subduction zone, which generates the largest earthquakes and devastating tsunamis, is still insufficiently constrained. Monitoring only a fraction of a single megathrust earthquake ... -
High groundwater levels: Processes, consequences, and management
; ; ; (Wiley Interdisciplinary Reviews: Water, 2022-08-19)
In recent years, the issue of high groundwater levels has caught attention. Unfavorable consequences of high groundwater levels are especially damage to buildings, infrastructure, and the environment. Processes that lead ... -
Spatial Markov Model for the Prediction of Travel‐Time‐Based Solute Dispersion in Three‐Dimensional Heterogeneous Media
; ; (Water Resources Research, 2022-06-13)
In recent years, Spatial Markov Models have gained popularity in simulating solute transport in heterogeneous formations. They describe the transition times of particles between equidistant observation planes by statistical ... -
Holocene variability in sea‐ice conditions in the eastern Baffin Bay‐Labrador Sea – A north–south biomarker transect study
; ; ; ; ; (Boreas, 2022-02-10)
Reconstructions of sea‐surface conditions during the Holocene were achieved using three sediment cores from northeastern Baffin Bay (GeoB19948‐3 and GeoB19927‐3) and the Labrador Sea (GeoB19905‐1) along a north–south ... -
Reassessing evidence of Moon–Earth dynamics from tidal bundles at 3.2 Ga (Moodies Group, Barberton Greenstone Belt, South Africa)
; ; ; ; ; ; ; ; ; ; ; (Sedimentology, 2022-04-05)
Past orbital parameters of the Moon are difficult to reconstruct from geological records because relevant data sets of tidal strata are scarce or incomplete. The sole Archean data point is from the Moodies Group (ca 3.22 Ga) ... -
The Hidden Giant: How a rift pulse triggered a cascade of sector collapses and voluminous secondary mass‐transport events in the early evolution of Santorini
; ; ; ; ; ; (Basin Research, 2022-04-19)
Volcanic island sector collapses have the potential to trigger devastating tsunamis and volcanic eruptions that threaten coastal communities and infrastructure. Considered one of the most hazardous volcano‐tectonic regions ... -
Plate corner subduction and rapid localized exhumation: Insights from 3D coupled geodynamic and geomorphological modelling
; ; (Terra Nova, 2022-02-25)
Rapid, localized exhumation has been reported at many plate corners between adjacent subduction/collision segments. Here we use a fully‐coupled geodynamic and geomorphological modelling approach to investigate overriding ... -
Evolution of Rift Systems and Their Fault Networks in Response to Surface Processes
; ; ; ; ; (Tectonics, 2022-02-24)
Continental rifting is responsible for the generation of major sedimentary basins, both during rift inception and during the formation of rifted continental margins. Geophysical and field studies revealed that rifts feature ... -
Thickness of Fluvial Deposits Records Climate Oscillations
; ; ; ; (Journal of Geophysical Research: Solid Earth, 2022-04-08)
Fluvial deposits offer Earth’s best‐preserved geomorphic record of past climate change over geological timescales. However, quantitatively extracting this information remains challenging in part due to the complexity of ... -
An Adaptive Hybrid Vertical Equilibrium/Full‐Dimensional Model for Compositional Multiphase Flow
; ; ; ; (Water Resources Research, 2022-01-21)
Efficient compositional models are required to simulate underground gas storage in porous formations where, for example, gas quality (such as purity) and loss of gas due to dissolution are of interest. We first extend the ... -
A Combined Cosmogenic Nuclides Approach for Determining the Temperature‐Dependence of Erosion
; (Journal of Geophysical Research: Earth Surface, 2022-04-07)
Physical weathering in cold, steep bedrock hillslopes occurs at rates that are thought to depend on temperature, but our ability to quantify the temperature‐dependence of erosion remains limited when integrating over ... -
Controls of the Foreland Deformation Pattern in the Orogen‐Foreland Shortening System: Constraints From High‐Resolution Geodynamic Models
; ; ; (Tectonics, 2022-02-17)
Controls on the deformation pattern (shortening mode and tectonic style) of orogenic forelands during lithospheric shortening remain poorly understood. Here, we use high‐resolution 2D thermomechanical models to demonstrate ... -
Impact of Spreading Rate and Age‐Offset on Oceanic Transform Fault Morphology
; ; (Geophysical Research Letters, 2022-01-24)
Oceanic transform faults (OTFs) are an inherent part of seafloor spreading and plate tectonics, whereas the process controlling their morphology remains enigmatic. Here, we systematically quantify variations in transform ... -
The effect of formation processes on the frequency of palaeolithic cave sites in semiarid zones: Insights from Kazakhstan
; ; ; ; ; (Geoarchaeology, 2022-04-05)
Central Asian caves with Palaeolithic deposits are few, but they provide a rich record of human fossils and cultural assemblages that has been used to model Late Pleistocene hominin dispersals. However, previous research ... -
The fluvial architecture of buried floodplain sediments of the Weiße Elster River (Germany) revealed by a novel method combination of drill cores with two‐dimensional and spatially resolved geophysical measurements
; ; ; ; ; ; ; ; ; ; ; ; (Earth Surface Processes and Landforms, 2022-01-05)
The complex and non‐linear fluvial river dynamics are characterized by repeated periods of fluvial erosion and re‐deposition in different parts of the floodplain. Understanding the fluvial architecture (i.e. the three‐dimensional ... -
Tracing southern Gondwanan sedimentary paths: A case study of northern Namibian late Palaeozoic sedimentary rocks
; ; ; ; ; (Sedimentology, 2022-02-15)
The northern Namibian Karoo‐aged successions are part of a Gondwana‐wide sedimentary system emerging at the Carboniferous–Permian boundary and existing for more than 50 Ma. The Karoo Supergroup sedimentary successions are ... -
Impacts of Peak‐Flow Events on Hyporheic Denitrification Potential
; ; ; ; (Water Resources Research, 2022-03-24)
Subsurface flows, particularly hyporheic exchange fluxes, driven by streambed topography, permeability, channel gradient and dynamic flow conditions provide prominent ecological services such as nitrate removal from streams ... -
Zur nachhaltigen Nutzung von Hochmooren als Tiefumbruchkultur
(2022)
Die Nutzung landwirtschaftliche Nutzung der Hochmoore führt zu hohen Freisetzungsraten an Treibhausgasen. Gegenüber der Deutschen Hochmoorkultur (Grünland auf Hochmoor) lassen sich die Freisetzungsraten durch Tiefumbruch ... -
How to Find Aquifer Statistics Utilizing Pumping Tests? Two Field Studies Using welltestpy
;; ; ; (Groundwater, 2021-07-14)
We present a workflow to estimate geostatistical aquifer parameters from pumping test data using the Python package welltestpy. The procedure of pumping test analysis is exemplified for two data sets from the Horkheimer ... -
The terrestrial impact crater record: A statistical analysis of morphologies, structures, ages, lithologies, and more
(Meteoritics & Planetary Science, 2021-06-30)
Abstract The number of newly discovered and confirmed impact structures on earth is growing continuously. In this review paper, the main attributes of 198 confirmed impact structures and 10 further structures, for which ... -
Spatial variability in river bed porosity determined by nuclear density gauging: A case study from a French gravel‐bed river
; ; ; (Sedimentology, 2021-09-16)
Porosity is one of the key properties of fluvial sediments. It is defined as the ratio of pore volume to total volume. In river science, porosity is often assumed to be spatially constant, which might be a gross simplification ... -
The Role of Fluid Seepage in the Erosion of Mesozoic Carbonate Escarpments
; ; ; (Journal of Geophysical Research: Earth Surface, 2021-11-12)
Mesozoic submarine carbonate escarpments are erosional features that host box canyons, the formation of which had been attributed to seepage erosion in view of their similarity to subaerial box canyons. The latter had been ... -
Size–frequency distribution of shallow landslides in the Black Forest, Germany
;; ; (Earth Surface Processes and Landforms, 2021-10-09)
Landslides are a major hazard in mountainous regions, represent a threat to human life, and cause substantial economic costs. While some landslide hazard assessments, including hazards maps, are available for Germany, their ...