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Showing 33951 to 34000 of 59105 works
Lake Level Fluctuations in the Northern Great Basin for the Last 25,000 years
During the Last Glacial Maximum (LGM; ~23,000 to 19,000 years ago or ka) and through the last deglaciation, the Great Basin physiographic region in the western United States was m…
Implicitly localized ensemble observational update to cope with nonlocal/nonlinear data constraints in large-size inver…
Many practical applications involve the resolution of large-size inverse problems, without providing more than a moderate-size sample to describe the prior probability distributio…
A constant Chinese Loess Plateau dust source since the Late Miocene
The Pliocene-Pleistocene boundary marks a major change in global climate and East Asian monsoon dynamic. However, the role of the global atmospheric dust-cycle over this time is u…
Single-Column Emulation of Reanalysis of the Northeast Pacific Marine Boundary Layer
An artificial neural network is trained to reproduce thermodynamic tendencies and boundary layer properties from ERA5 HIRES reanalysis data over the summertime Northeast Pacific s…
Effect of solution chemistry on the iodine release from iodoapatite in aqueous environments
To ensure the safe disposal of nuclear waste, understanding the release process of radionuclides retained in the nuclear waste forms is of vital importance. Iodoapatite Pb9.85(VO4…
A Temperature- and Pressure-Sensitive Visco-Plasticity Theory based on Interface Mechanisms for Sedimentary Rocks
Constitutive modelling in geotechnical engineering and applied earth sciences is facing the challenge of assessing the long-term potential of both man-made and natural geohazards.…
On the stability of deep-seated landslides. The cases of Vaiont (Italy) and Shuping (Three Gorges Dam, China)
Deep-seated catastrophic landslides are among the most powerful natural hazards on earth. These devastating events are not possible to be prevented yet, because of their large vol…
HESS Opinions: Improving the evaluation of groundwater representation in continental to global scale models
Continental- to global-scale hydrologic and land surface models increasingly include representations of the groundwater system, driven by crucial Earth science and sustainability …
The influence of basin settings and flow properties on the dimensions of submarine lobe elements
Submarine lobes have been identified within various deep-water settings, including the basin-floor, the base of slope and the continental slope. Their dimensions and geometries ar…
An assessment of the wind influence in local inertial 1D hydrodynamic flow routing
One-dimensional (1D) hydrodynamic modeling studies generally do not take into account the influence of wind, although literature experiences demonstrate the importance of this inf…
10 Jahre Bohrkern- und Probenarchiv in Wünsdorf
[...] Der Bericht dokumentiert die Jubiläumsveranstaltung zum zehnjährigen Bestehen des Bohrkern- und Probenarchivs in Wünsdorf, einer zentralen Einrichtung des Landesamtes für Be…
Dark carbon fixation contributes to sedimentary organic carbon in the Arabian Sea oxygen minimum zone
In response to rising CO2 concentrations and increasing global sea surface temperatures, oxygen minimum zones (OMZ), or “dead zones”, are expected to expand. OMZs are fueled by hi…
Using nano-XRM and high-contrast imaging to inform micro-porosity permeability during Stokes-Brinkman single and two-ph…
Carbonate rocks have particularly complex and multiscale pore systems which are weakly understood. In this study we use combined experimental, modelling, and pore space generation…
Well-being loss: a comprehensive metric for household disaster resilience
Natural disaster risk assessments typically consider environmental hazard and physical damage, neglecting to quantify how asset losses affect households’ well-being. However, for …
Shallow slow slip events along the Nankai Trough detected by the GNSS-A
Various slow earthquakes (SEQs), including tremors, very-low-frequency events, and slow slip events (SSEs), occur along megathrust zones. In a shallow plate boundary region, altho…
Pleistocene coastal evolution in the Makran subduction zone
Along the coast of the Makran subduction zone (SE Iran and SW Pakistan), active uplift combined with efficient erosion and vigorous sediment transport have led to marine terraces …
[Neue Nr. 5421] Ulrichstein / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Kart…
Forced folding and fracturing induced by differential compaction during post-depositional inflation of sandbodies: insi…
Three series of numerical models based on the discrete element method were constructed to simulate forced folding and fracturing triggered by postdepositional inflation of fludise…
Low-temperature thermochronology as a control on vertical movements for semi-quantitative Source-to-Sink analysis: A ca…
Continental passive margins and their hinterlands in the Atlantic realm are the locus of a significant amount of studies that evidence pre-, syn-, and post-rift episodic km-scale …
Extension at the coast of the Makran subduction zone (Iran)
In the Makran subduction zone, earthquake focal mechanisms and geodetic data indicate that the deforming prism currently experiences N-S compression. However, paleostress inversio…
Representation of European hydroclimatic patterns with Self-Organizing Maps
Self-Organizing Maps provide a powerful, non-linear technique of dimensionality reduction that can be used to identify clusters with similar attributes. Here, they were constructe…
Holocene sedimentary record and coastal evolution in the Makran subduction zone (Iran)
The Makran coast displays evidence of surface uplift since at least the Late Pleistocene, but it remains uncertain whether this displacement is accommodated by creep on the subduc…
A Novel Hybrid Finite Element-Spectral Boundary Integral Scheme for Modeling Earthquake Cycles: Application to Rate and…
We present a novel hybrid finite element (FE) - spectral boundary integral (SBI) scheme that enables efficient simulation of earthquake cycles. This combined FE-SBI approach captu…
Mechanisms of fault mirror formation and fault healing in carbonate rocks
The development of smooth, mirror-like surfaces provides insight into the mechanical behaviour of crustal faults during the seismic cycle. To determine the thermo-chemical mechani…
Using a Superconducting Gravimeter in Support of Absolute Gravity Campaigning — A feasibility study
Preparing for joint analysis of absolute gravity (AG) campaigns, this report investigates whether a stationary superconducting gravimeter (SCG) can provide a long-term stable meas…
Overburden deformation induced by dyke-fed conical sandstone intrusions: insights from numerical experiments
Conical sandstone intrusions, as a distinct type of hydrocarbon reservoirs and carbon sequestration sites, remain poorly understood regarding their emplacement mechanics. Here, we…
Controls on structural styles and decoupling in stratigraphic sequences with double décollements during thin-skinned co…
Six series of particle-based numerical experiments were performed to simulate thin-skinned contractional tectonics in stratigraphic sequences with double décollements during horiz…
Die Gründung der Deutschen Geophysikalischen Gesellschaft im Rahmen der internationalen Beziehungen zu Beginn des zwanz…
In diesem Jahr können wir den 100. Jahrestag der Gründung der Deutschen Geophysikalischen Gesellschaft (DGG) feiern. Die DGG wurde als Deutsche Seismologische Gesellschaft im Jahr…
Influence of nodular structures on fracture development in fine-grained rocks: numerical simulations based on the discr…
Discrete element experiments were performed to simulate fracturing processes in nodule-bearing, fine-grained rocks. Two models that contain a collection of bonded circular particl…
On the automatic and a priori design of unstructured mesh resolution for coastal ocean circulation models
This study investigates the design of unstructured mesh resolution and its impact on the modeling of barotropic tides along the United States East Coast and Gulf Coast (ECGC). A d…
Complex earthquake behavior on simple faults
While power-law distributions in seismic moment and interevent times are ubiquitous in regional catalogs, the statistics of individual faults remains controversial. Continuum faul…
Revising Contemporary Heat Flux Estimates for the Lena River, Northern Eurasia
The Lena River heat flux affects the Laptev Sea hydrology. Published long-term estimates range from 14.0 to 15.7 EJ·a-1, based on data from Kyusyur, at the river outlet. A novel d…
Growing primordial continental crust self-consistently in global mantle convection models
The majority of continental crust formed during the hotter Archean was composed of Tonalite-Trondhjemite-Granodiorite (TTG) rocks. In contrast to the present-day loci of crust for…
A spatially resolved fluid-solid interaction model for dense granular packs/Soft-Sand.
Fluid flow through dense granular packs or soft sands can be described as a Darcy s flow for low injection rates, as the friction between grain-grain and grain-walls dominate the …
A new method to study inhomogeneities in climate records: Brownian Motion or Random Deviations?
Climate data is affected by inhomogeneities due to historical changes in the way the measurements were performed. Understanding these inhomogeneities is important for accurate est…
Fracturing and crystal plastic behaviour of garnet under seismic stress in the dry lower continental crust (Musgrave Ra…
Garnet is a high strength mineral compared to other common minerals, such as quartz and feldspar, in the felsic crust. In felsic mylonites, garnet typically occurs as porphyroclas…
Nachweis junger geologischer Aktivitäten des Diapirs von Sperenberg (Brandenburg) mittels Laserscanaufnahmen
[...] Der Diapir von Sperenberg ist eine der markantesten Salzstrukturen Norddeutschlands, da er bis an die Erdoberfläche aufgestiegen ist. In der vorliegenden Untersuchung werden…
Investigation of the Likelihood of Green Infrastructure (GI) Enhancement along Linear Waterways or on Derelict Sites (D…
Studies evaluating potential of Green Infrastructure (GI) development using traditional Boolean logic-based multi-criteria analysis methods are not capable of predicting future GI…
Analysis of Persistence in the Flood Timing and the Role of Catchment Wetness on Flood Generation in a Large River Basi…
This study contributes to the understanding of the timing of occurrence of floods and role of the catchment wetness in flood processes (i.e., magnitude and the timing of floods) o…
Trends of hydroclimatic intensity in Colombia
Prediction of changes in precipitation in upcoming years and decades caused by global climate change associated with the greenhouse effect, deforestation and other anthropic pertu…
Reduction of spatially structured errors in wide-swath altimetric satellite data using data assimilation
The Surface Water and Ocean Topography (SWOT) mission is a next generation satellite mission expected to provide a 2km-resolution observation of the sea surface height (SSH) on a …
Drainage rearrangement as a driver of geomorphological evolution during the Upper Pleistocene in a small tropical basin
The development of river networks in contexts where intense tectonic activity converges with great lithological variability, such as the Ocoa River Basin in the south of the Domin…
Global distribution of sediment-hosted metals controlled by craton edge stability
Sustainable development and the transition to a clean-energy economy drives ever-increasing demand for base metals, significantly outstripping the discovery rate of new deposits a…
Three Billion Year Secular Evolution of the Triple Oxygen Isotope Composition of Marine Chert
The 18O/16O ratios of ancient marine minerals show a puzzling increase over geologic time. Long-term changes in temperature, seawater 18O/16O ratios, and post-depositional overpri…
Die rezente Bodenbildung in Lössen und Lössderivaten bei Almaty (Republik Kasachstan)
[...] Die Studie untersucht die rezenten Bodenbildungsprozesse in den Lössgebieten der Region Almaty als Indikatoren für die Klima- und Landschaftsgeschichte. Die Autorin analysie…
Causation of Late Quaternary Rapid-increase Radiocarbon Anomalies
Brief (<100 y) rapid-increase anomalies in the Earth’s atmospheric 14C production have previously been attributed to either gamma photon radiation from supernovae or to cosmic …
Identification and Characterization of a Buried Volcanic Field Using Seismic Reflection and Borehole Data
Buried volcanoes occur in great numbers within sedimentary basins globally. Knowledge of ancient buried volcanic systems has improved significantly over the past two decades. The …
Paleogeographic and Morphologic Reconstroction of a Buried Monogenetic Volcanic Field
Technological advances of our modern society motivated an unprecedented necessity to find natural resources in the subsurface of our planet. The search for these valuable resource…
Pre-existing intra-basement shear zones influence growth and geometry of non-colinear normal faults, western Utsira Hig…
Pre-existing intra-basement shear zones can induce mechanical and rheological heterogeneities that may influence rifting and the overall geometry of rift-related normal faults. Ho…
Microstructural Constraints on Magmatic Mushes under Kīlauea Volcano, Hawaiʻi
Distorted olivines of enigmatic origin are ubiquitous in erupted products from a wide range of volcanic systems (e.g., Hawaiʻi, Iceland, Andes). Investigation of these features at…
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