Geologie: Recent submissions
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Observations of Laboratory and Natural Slow Slip Events: Hikurangi Subduction Zone, New Zealand
(Geochemistry, Geophysics, Geosystems, 2020)Slow slip events (SSEs) are recognized as an important component of plate boundary fault slip, and there is a need for laboratory friction data on natural samples to guide comparisons with natural SSEs. Here, we compile a ... -
Partitioning the Uncertainty of Ensemble Projections of Global Glacier Mass Change
(Earth's Future, 2020)Glacier mass loss is recognized as a major contributor to current sea level rise. However, large uncertainties remain in projections of glacier mass loss on global and regional scales. We present an ensemble of 288 glacier ... -
Width control on event-scale deposition and evacuation of sediment in bedrock-confined channels
(Earth Surface Processes and Landforms, 2020)Abstract In mixed bedrock–alluvial rivers, the response of the system to a flood event can be affected by a number of factors, including coarse sediment availability in the channel, sediment supply from the hillslopes and ... -
New fjords, new coasts, new landscapes: The geomorphology of paraglacial coasts formed after recent glacier retreat in Brepollen (Hornsund, southern Svalbard)
(Earth Surface Processes and Landforms, 2020)Changes in the properties and dynamics of tidewater glacier systems are key indicators of the state of Arctic climate and environment. Calving of tidewater glacier fronts is currently the dominant form of ice mass loss and ... -
The Late Mesozoic-Cenozoic Arctic Ocean Climate and Sea Ice History: A Challenge for Past and Future Scientific Ocean Drilling
(Paleoceanography and Paleoclimatology, 2019)Over the past 3–4 decades, coincident with global warming and atmospheric CO2 increase, Arctic sea ice has significantly decreased in its extent as well as in thickness. When extrapolating this alarming trend, the central ... -
Monitoring the sedimentary budget and dislocated boulders in western Greece – results since 2008
(Sedimentology, 2020)Dislocated boulders are one sign of high-energy wave impacts on coasts. These high-energy impacts, caused by severe storms or tsunamis, can trigger initial cracking and transport of boulders. Monitoring of these boulders, ... -
Ramgarh, Rajasthan, India: A 10 km diameter complex impact structure
(Meteoritics & Planetary Science, 2020)The Ramgarh structure is a morphological landmark in southeastern Rajasthan, India. Its 200 m high and 3.5–4 km wide annular collar has provoked many hypotheses regarding its origin, including impact. Here, we document ... -
A post-IR IRSL chronology and dust mass accumulation rates of the Nosak loess-palaeosol sequence in northeastern Serbia
(Boreas, 2020)In the Middle Danube Basin, Quaternary deposits are widely distributed in the Vojvodina region where they cover about 95% of the area. Major research during the last two decades has been focused on loess deposits in the ... -
Pinpointing Deep Geothermal Upflow in Zones of Complex Tectono-Volcanic Degassing: New Insights from Aluto Volcano, Main Ethiopian Rift
(Geochemistry, Geophysics, Geosystems, 2019)Active rifts release large amounts of gases from deep sources to the atmosphere by advection and diffusion processes along permeable fracture zones. The objective of this study is to develop geothermal exploration concepts ... -
The Permeability of Columnar Jointed Lava
(Journal of Geophysical Research: Solid Earth, 2019)Columnar jointed lava is an important facies in many geothermal reservoir systems. The permeability of jointed lavas is dominated by the contribution from fracture networks. We use a scaling for the permeability of a set ... -
Plume-Induced Subduction Initiation: Single-Slab or Multi-Slab Subduction?
(Geochemistry, Geophysics, Geosystems, 2020)Initiation of subduction following the impingement of a hot buoyant mantle plume is one of the few scenarios that allow breaking the lithosphere and recycling a stagnant lid without requiring any preexisting weak zones. ... -
Rates of rockwall slope erosion in the upper Bhagirathi catchment, Garhwal Himalaya
(Earth Surface Processes and Landforms, 2019)Rockwall slope erosion is defined for the upper Bhagirathi catchment using cosmogenic Beryllium-10 (10Be) concentrations in sediment from medial moraines on Gangotri glacier. Beryllium-10 concentrations range from 1.1 ± ... -
Mantle Convection Patterns Reveal the Mechanism of the Red Sea Rifting
(Tectonics, 2020)We present a new model of the stress state and present-day tectonics of the Red Sea Rift (RSR) based on an instantaneous geodynamic mantle flow model. The initial density and viscosity variations in the mantle are derived ... -
How a river submerges into the sea: a geological record of changing a fluvial to a marine paleoenvironment during early Holocene sea level rise
(Journal of Quaternary Science, 2019)Coastal seas, and in particular estuarine systems, were significantly affected by Quaternary sea level changes. Furthermore, the dynamics of shelf and coastal evolution have had a strong impact on coastal landscapes inhabited ... -
Three-Dimensional Flow Above River Bedforms: Insights From Numerical Modeling of a Natural Dune Field (Río Paraná, Argentina)
(Journal of Geophysical Research: Earth Surface, 2019)Bedforms are ubiquitous features in rivers and shallow seas, as mobile sediment is transported by flowing water. The mutual interaction of hydrodynamics and bedform has been widely studied in the laboratory over two-dimensional ... -
The Alichur Dome, South Pamir, Western India–Asia Collisional Zone: Detailing the Neogene Shakhdara–Alichur Syn-collisional Gneiss-Dome Complex and Connection to Lithospheric Processes
(Tectonics, 2020)Neogene, syn-collisional extensional exhumation of Asian lower–middle crust produced the Shakhdara–Alichur gneiss-dome complex in the South Pamir. The <1 km-thick, mylonitic–brittle, top-NNE, normal-sense Alichur shear ... -
Limnological response to the Laacher See eruption (LSE) in an annually laminated Allerød sediment sequence from the Nahe palaeolake, northern Germany
(Boreas, 2020)This paper presents evidence for a limnological response to the Laacher See eruption (LSE) as detected in lake sediments from Nahe, northern Germany. The sediment section of the Allerød period dating to between 13 422 and ... -
Controls on the lateral channel-migration rate of braided channel systems in coarse non-cohesive sediment
(Earth Surface Processes and Landforms, 2019)Lateral movements of alluvial river channels control the extent and reworking rates of alluvial fans, floodplains, deltas, and alluvial sections of bedrock rivers. These lateral movements can occur by gradual channel ... -
Impact of Nested Moisture Cycles on Coastal Chalk Cliff Failure Revealed by Multiseasonal Seismic and Topographic Surveys
(Journal of Geophysical Research: Earth Surface, 2020)Cliff failure is a fundamental process shaping many coastlines worldwide. Improved insight into direct links between cliff failure and forcing mechanisms requires precise information on the timing of individual failures, ... -
Revisiting the Middle Eocene Climatic Optimum “Carbon Cycle Conundrum” With New Estimates of Atmospheric pCO2 From Boron Isotopes
(Paleoceanography and Paleoclimatology, 2020)The Middle Eocene Climatic Optimum (MECO) was a gradual warming event and carbon cycle perturbation that occurred between 40.5 and 40.1 Ma. A number of characteristics, including greater-than-expected deep-sea carbonate ... -
An ~130 kyr Record of Surface Water Temperature and δ18O From the Northern Bay of Bengal: Investigating the Linkage Between Heinrich Events and Weak Monsoon Intervals in Asia
(Paleoceanography and Paleoclimatology, 2020)Millennial-scale reductions in monsoon precipitation, so-called Weak Monsoon Intervals (WMIs), have been identified in numerous paleoclimate records across the Afro-Asian monsoon domain throughout the last glacial-interglacial ... -
The Importance of Monitoring Interval for Rockfall Magnitude-Frequency Estimation
(Journal of Geophysical Research: Earth Surface, 2019)Rockfalls commonly exhibit power law volume-frequency distributions, where fewer large events are observed relative to more numerous small events. Within most inventories, the smallest rockfalls are the most difficult to ... -
Relative quantification of wind erosion in argan woodlands in the Souss Basin, Morocco
(Earth Surface Processes and Landforms, 2020)The endemic argan woodlands cover large parts of South Morocco and create a characteristic landscape with areas of sparsely vegetated and bare soil surfaces between single trees. This unique ecosystem has been under extensive ... -
Upper Plate Controls on the Formation of Broken Foreland Basins in the Andean Retroarc Between 26°S and 28°S: From Cretaceous Rifting to Paleogene and Miocene Broken Foreland Basins
(Geochemistry, Geophysics, Geosystems, 2020)Marked along-strike changes in stratigraphy, mountain belt morphology, basement exhumation, and deformation styles characterize the Andean retroarc; these changes have previously been related to spatiotemporal variations ... -
Bayesian Calibration and Sensitivity Analysis for a Karst Aquifer Model Using Active Subspaces
(Water Resources Research, 2019)In this article, we perform a parameter study for a recently developed karst hydrological model. The study consists of a high-dimensional Bayesian inverse problem and a global sensitivity analysis. For the first time in ...