Auflistung Geologie nach Erscheinungsdatum
Anzeige der Dokumente 81-100 von 931
-
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 ... -
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 ... -
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 ... -
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) ... -
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 ... -
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 ... -
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 ... -
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 ... -
Effects of CO2 and Ocean Mixing on Miocene and Pliocene Temperature Gradients
(Paleoceanography and Paleoclimatology, 2022-02-11)Cenozoic climate changes have been linked to tectonic activity and variations in atmospheric CO2 concentrations. Here, we present Miocene and Pliocene sensitivity experiments performed with the climate model COSMOS. The ... -
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 ... -
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 ... -
New insights into particle transport in karst conduits using comparative tracer tests with natural sediments and solutes during low‐flow and high‐flow conditions
(Hydrological Processes, 2022-01-23)Colloidal particles are an important vector for the transport of contaminants in karst aquifers, characterized by a high degree of hydrologic variability. Understanding this heterogeneity and hydrogeological functioning ... -
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 ... -
Faulting and Magmatic Accretion Across the Overlapping Spreading Center Between Vance Segment and Axial South Rift, Juan de Fuca Ridge
(Geochemistry, Geophysics, Geosystems, 2022-01-12)Plate divergence along mid‐ocean ridges is accommodated through faulting and magmatic accretion, and, at overlapping spreading centers (OSC), is distributed across two curvilinear overlapping ridge axes. One‐meter resolution ... -
Rock Glacier Characteristics Under Semiarid Climate Conditions in the Western Nyainqêntanglha Range, Tibetan Plateau
(Journal of Geophysical Research: Earth Surface, 2022-01-07)Rock glaciers are receiving increased attention as a potential source of water and indicator of climate change in periglacial landscapes. They consist of an ice‐debris mixture, which creeps downslope. Although rock glaciers ... -
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 ... -
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 ... -
The Di models method: geological 3-D modeling of detrital systems consisting of varying grain fractions to predict the relative lithological variability for a multipurpose usability
(Bulletin of Engineering Geology and the Environment, 2021-12-21)The coexistence of a wide variety of subsurface uses in urban areas requires increasingly demanding geological prediction capacities for characterizing the geological heterogeneities at a small-scale. In particular, detrital ... -
Quantification of Fracture Roughness by Change Probabilities and Hurst Exponents
(Mathematical Geosciences, 2021-12-17)The objective of the current study is to utilize an innovative method called “change probabilities” for describing fracture roughness. In order to detect and visualize anisotropy of rock joint surfaces, the roughness of ...