Auflistung nach Titel
Anzeige der Dokumente 792-811 von 7025
-
Chaotic three-dimensional distribution of Ba, Rb, and Sr in feldspar megacrysts grown in an open magmatic system
(Contributions to Mineralogy and Petrology, 2011)As has been demonstrated in recent years, the heterogeneities of coeval magmas can be more successfully revealed by zoned megacrysts rather than by analysis of the whole rocks hosting them. Here, the geochemical ... -
Characeae-derived carbonate deposits in Lake Ganau, Kurdistan Region, Iraq
Khanaqa, Polla; Karim, Kamal;
(Facies, 2012)
Characeae, a family of calcifying green algae, are common in carbonate-rich freshwaters. The southwestern shoreline of Lake Ganau (Kurdistan Region, northeastern Iraq) harbors dense and thick mats of these algae (genus ... -
Characterisation of an artesian groundwater system in the Valle de Iglesia in the Central Andes of Argentina
; ; ; ; (International Journal of Earth Sciences, 2021-06-04)
Despite its location in the “Arid Diagonal” of South America, the Valle de Iglesia contains a number of artesian springs, the most important of which are the Baños Pismanta thermal springs, which release water at ~ 45 °C. ... -
Characterising the reactivity of metallic iron in Fe0/As-rock/H2O systems by long-term column experiments
(Water SA, 2012)
The intrinsic reactivity of four metallic iron materials (Fe0) was investigated in batch and column experiments. The Fe0 reactivity was characterized by the extent of aqueous fixation of in-situ leached arsenic (As). ... -
Characteristics and origin of a Saalian glaciolacustrine to glaciofluvial succession in the Hümmling region, NW Germany
(E&G – Quaternary Science Journal; Vol.47, No. 1)Im Tiefland Nordwestdeutschlands sind von der saalezeitlichen Vereisung aufgebauten glazifluvialen Geestplatten und Stauchmoränen von flachen Niederungen umgeben. Im Untersuchungsgebiet im Hümmling besteht die Geestplatte ... -
Characteristics of the Matuyama‐Brunhes Magnetic Field Reversal Based on a Global Data Compilation
; ; (Journal of Geophysical Research: Solid Earth, 2023-02-01)
Magnetic field reversals are irregular events in Earth's history when the geomagnetic field changes its polarity. Reversals are recorded by spot and continuous remanent magnetization data collected from lava flows and ... -
Characterization and Evolution of Organized Shallow Convection in the Downstream North Atlantic Trades
; ; (Journal of Geophysical Research: Atmospheres, 2021-08-26)
Four previously identified patterns of meso‐scale cloud organization in the trades — called Sugar, Gravel, Flowers, and Fish — are studied using long‐term records of ground‐based measurements, satellite observations and ... -
Characterization of (paleo)lacustrine landforms using sedimentological and portable OSL investigations at Schweriner See, north‐eastern Germany
; ; ; (Earth Surface Processes and Landforms, 2021-11-03)
We investigated four subaerial (paleo)lacustrine landforms at the north‐eastern shoreline of Schweriner See, north‐eastern Germany. These included two beach ridges, one subaerial nearshore bar and a silting up sequence ... -
Characterization of a landslide-triggered debris flow at a rainforest-covered mountain region in Brazil
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; (Natural Hazards, 2021-05-30)
Debris flows represent great hazard to humans due to their high destructive power. Understanding their hydrogeomorphic dynamics is fundamental in hazard assessment studies, especially in subtropical and tropical regions ... -
Characterization of a novel autonomous analyzer for seawater total alkalinity: Results from laboratory and field tests
; Aßmann, Steffen; Körtzinger, Arne (Limnology and Oceanography: Methods, 2019)
Abstract High-quality seawater total alkalinity (AT) measurements are essential for reliable ocean carbon and acidification observations. Well-established manual multipoint potentiometric titration methods already fulfill ... -
Characterization of differential throughfall drop size distributions beneath European beech and Norway spruce
; ; ; ; ; (Hydrological Processes, 2019)
Forest canopies present irregular surfaces that alter both the quantity and spatiotemporal variability of precipitation inputs. The drop size distribution (DSD) of rainfall varies with rainfall event characteristics and ... -
Characterization of Late Cretaceous to Miocene source rocks in the Eastern Mediterranean Sea: An integrated numerical approach of stratigraphic forward modelling and petroleum system modelling
; ; ; ; ; (Basin Research, 2020)
Stratigraphic forward modelling was used to simulate the deposition of Upper Cretaceous, Eocene and Oligo-Miocene source rocks in the Eastern Mediterranean Sea and, thus, obtain a process-based 3D prediction of the quantity ... -
Characterization of silty to fine-sandy sediments with SH waves: full waveform inversion in comparison with other geophysical methods
; ; ; Wilken, Dennis; ; Schmidts, Thomas; ; Basaran, Sait; (Near Surface Geophysics, 2020)
We apply seismic full waveform inversion to SH- and Love-wave data for investigating the near-surface lithology at an archaeological site. We evaluate the resolution of the applied full waveform inversion algorithm through ... -
Characterization of the pigmented shell-forming proteome of the common grove snail Cepaea nemoralis
(BMC Genomics, 2014)Background With a diversity of pigmented shell morphotypes governed by Mendelian patterns of inheritance, the common grove snail, Cepaea nemoralis, has served as a model for evolutionary biologists and population geneticists ... -
Characterization of the stellar variability in CoRoT fields with BEST telescopes
(Univ. Berlin, 2009)The first extrasolar planet 51 Peg b around the G-type star has been reported in 1995. The planet with few Jupiter masses orbiting its star very closely was detected by measurement of the oscillation in the radial velocity ... -
Characterization on organic matrix proteins enclosed in high Mg-calcite crystals of the coralline sponge Spirastrella (Acanthochaetetes) wellsi
Bergbauer, Matthias; Lange, Robert; (Globale und regionale Steuerungsfaktoren biogener Sedimentation / Teil 1: Riff-EvolutionGlobale und regionale Steuerungsfaktoren biogener Sedimentation / Teil 1: Riff-Evolution, 1996)
-
Characterization on organic matrix proteins enclosed in high Mg-calcite crystals of the coralline sponge Spirastrella (Acanthochaetetes) wellsi
Bergbauer, Matthias; Lange, Robert; (Globale und regionale Steuerungsfaktoren biogener Sedimentation, 1996)
Protein components found in freeze-dried specimens of the coralline sponge Spirastrella (Acanthochaetetes) wellsi were separated and characterized . Proteins extracted from skeleton crystals (matrix proteins) contained ... -
Characterizing As, Cu, Fe and U solubilization by natural waters
; Schöner, A.; Schubert, M. (Springer-Verlag, Berlin/HeidelbergSpringer, Berlin/Heidelberg2008)
The effects of carbonate concentration and the presence of in-situ generated iron oxide and hydroxide phases (iron oxyhydroxides) on arsenic (As), copper (Cu), and uranium (U) release from natural rocks were investigated ... -
Characterizing As, Cu, Fe and U solubilization by natural waters
; Schöner, A.; Schubert, M. (Uranium, Mining and Hydrogeology, 2008)
The effects of carbonate concentration and the presence of in-situ generated iron oxide and hydroxide phases (iron oxyhydroxides) on arsenic (As), copper (Cu), and uranium (U) release from natural rocks were investigated ... -
Characterizing hydrological processes within kettle holes using stable water isotopes in the Uckermark of northern Brandenburg, Germany
Vyse, Stuart Andrew;; Lischeid, Gunnar; (Hydrological Processes, 2020-02-18)
Understanding the hydrologic connectivity between kettle holes and shallow groundwater, particularly in reaction to the highly variable local meteorological conditions, is of paramount importance for tracing water in a ...
