Browsing by Title
Now showing items 1922-1941 of 4816
-
Ice Age geomorphological Ahorn Valley and Ailsbach River terrace evolution – and its importance for the cave use possibilities by cave bears, top predators (hyenas, wolves and lions) and humans (Neanderthals, Late Palaeolithics) in the Frankonian Karst
(E&G – Quaternary Science Journal; Vol.62)The Sophie’s Cave in Upper Franconia, Bavaria (South Germany) eroded into Upper Jurassic reef dolomite and is a perfect model including all three stages of cave development ranging from a 1. ponor cave, to 2. intermediate ... -
Ice Age‐Holocene Similarity of Foraminifera‐Bound Nitrogen Isotope Ratios in the Eastern Equatorial Pacific
; ; ; ; ; ; ; (Paleoceanography and Paleoclimatology, 2021-05-19)
Bulk sediment δ15N records from the eastern tropical Pacific (ETP) extending back to the last ice age most often show low glacial δ15N, then a deglacial δ15N maximum, followed by a gradual decline to a late Holocene δ15N ... -
Ice Particle Properties Inferred From Aggregation Modelling
; ; ; ; ; (Journal of Advances in Modeling Earth Systems, 2020)
We generated a large number 105,000 of aggregates composed of various monomer types and sizes using an aggregation model. Combined with hydrodynamic theory, we derived ice particle properties such as mass, projected area, ... -
Ice-Rafted Erratics and Bergmounds from Pleistocene Outburst Floods, Rattlesnake Mountain, Washington, USA
(E&G – Quaternary Science Journal; Vol.63)Exotic ice-rafted debris from the breakup of ice-dammed glacial lakes Missoula and Columbia is common in slackwater areas along the 1,100-km route for outburst floods in the northwestern US. A detailed analysis was performed ... -
Idealistic vision or reality? - life-long learning among the Romany ethnic groups
(Discussion Papers / Centre for Regional Studies of Hungarian Academy of Science; 53) -
Ideas and perspectives: hydrothermally driven redistribution and sequestration of early Archaean biomass – the “hydrothermal pump hypothesis”
; ; Bauersachs, Thorsten; Mißbach, Helge; Reinhardt, Manuel; Schäfer, Nadine; Van Kranendonk, Martin J.; (Biogeosciences, 2018)
Archaean hydrothermal chert veins commonly contain abundant organic carbon of uncertain origin (abiotic vs. biotic). In this study, we analysed kerogen contained in a hydrothermal chert vein from the ca. 3.5 Ga ... -
Identification of groundwater mean transit times of precipitation and riverbank infiltration by two-component lumped parameter models
; ; ; ; ; ; (Hydrological Processes, 2019)
Groundwater transit time is an essential hydrologic metric for groundwater resources management. However, especially in tropical environments, studies on the transit time distribution (TTD) of groundwater infiltration and ... -
Identification of uppercrustal discontinuities using dip curvature analysis of isostatic residual gravity: examples from the central Andes
; Götze, Hans-Joachim; ; ; Hongn, Fernado; Petrinovic, Ivan (11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)
Structural analysts are often faced with the problem of identifying prominent structural discontinuities covered by post-tectonic sedimentary or volcanic rocks. Gravity fields are often used to delineate the trace of buried ... -
Identifying Radiation Belt Electron Source and Loss Processes by Assimilating Spacecraft Data in a Three-Dimensional Diffusion Model
; ; ; ; ; (Journal of Geophysical Research: Space Physics, 2020)
Data assimilation aims to blend incomplete and inaccurate data with physics-based dynamical models. In the Earth's radiation belts, it is used to reconstruct electron phase space density, and it has become an increasingly ... -
Imaging of Cenozoic climatic events and bottom water activities at the northeastern flank of Walvis Ridge: A correlation of seismic data with borehole data measurements
(Univ. Bremen, 2008)Seismic, marine, walvis ridge, bottom currents, climatic events. - The history of sedimentation and current activities at the northeastern flank of Walvis Ridge is investigated by a correlation of multichannel seismic data ... -
Imaging of vertical seismic profiling data using the common-reflection-surface stack
(Univ. Karlsruhe, 2008)Diese Dissertation beschäftigt sich mit der Entwicklung eines automatisierten, datenorientierten Abbildungsverfahrens, das auf der sogenannten Common-Reflection-Surface (CRS) Stapelung basiert. Durch die Miteinbeziehung ... -
Imbalanced nutrients as triggers for black shale formation in a shallow shelf setting during the OAE 2 (Wunstorf, Germany)
(Biogeosciences, 2012-10-29)During the oceanic anoxic event 2 (OAE 2) in the Mid-Cretaceous Period, widespread black shale (BS) formation occurred, reflecting perturbations in major biogeochemical cycles. Here we present geochemical and biomarker ... -
Impact Experiment on Gneiss: The Effects of Foliation on Cratering Process
Agarwal, Amar; Poelchau, Michael H.;; Rae, Auriol; Ebert, Matthias (Journal of Geophysical Research: Solid Earth, 2019)
Two impact experiments were carried out on blocks of Maggia gneiss to assess the influence of mechanical target anisotropies on the cratering process. The experiments were done within the framework of Multidisciplinary ... -
Impact Forecasting to Support Emergency Management of Natural Hazards
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; (Reviews of Geophysics, 2020)
Forecasting and early warning systems are important investments to protect lives, properties, and livelihood. While early warning systems are frequently used to predict the magnitude, location, and timing of potentially ... -
Impact of an 0.2 km3 Rock Avalanche on Lake Eibsee (Bavarian Alps, Germany) – Part I: Reconstruction of the paleolake and Effects of the Impact
; Mamot, Philipp; Lempe, Bernhard; (Earth Surface Processes and Landforms, 2020-11-16)
Rock avalanches destroy and reshape landscapes in only a few minutes and are among the most hazardous processes on Earth. The surface morphology of rock avalanche deposits and the interaction with the underlying material ... -
Impact of an 0.2 km3 Rock Avalanche on Lake Eibsee (Bavarian Alps, Germany) – Part II: Catchment Response to Consecutive Debris Avalanche and Debris Flow
; ; Lempe, Bernhard; (Earth Surface Processes and Landforms, 2020-11-16)
The ~0.2 km3 Eibsee rock avalanche impacted Paleolake Eibsee and completely displaced its waters. This study analyses the lake impact and the consequences, and the catchment response to the landslide. A quasi‐3D seismic ... -
Impact of biochar on nutrient supply, crop yield and microbial respiration on sandy soils of northern Germany
; Priyadarshani, S.H. Renuka; Haefele, Stephan M.; Schröder, Nicola; Pfeiffer, Eva‐Maria (European Journal of Soil Science, 2021-02-08)
The application of biochar to agricultural soils to increase nutrient availability, crop production and carbon sequestration has gained increasing interest but data from field experiments on temperate, marginal soils are ... -
Impact of different chloride salts and their concentrations on nitrification and trace gas emissions from a sandy soil under a controlled environment
Guo, Yafei; Becker‐Fazekas, Stefan; (Soil Use and Management, 2021-03-10)
Potassium chloride (KCl) and magnesium chloride (MgCl2) can be used to reduce carbon dioxide (CO2) and nitrous oxide (N2O) emissions, but their efficacy can be strongly affected by their Cl− concentration. This study aimed ... -
Impact of Eurasian Ice Sheet and North Atlantic Climate Dynamics on Black Sea Temperature Variability During the Penultimate Glacial (MIS 6, 130–184 ka BP)
; ; ; (Paleoceanography and Paleoclimatology, 2020)
Understanding hemisphere-wide millennial-scale temperature variability during past glacials in response to ice sheet dynamics and orbital forcing is one of the key targets for Quaternary climate research. While an inland ...