Browsing Geologie by Title
Now showing items 49-68 of 931
-
Anmerkungen zur Schätzung von Schadstofffrachten im Grundwasser - Beobachtungen am Gartenzaun
(Altlasten Spektrum, 2020)Die Bundes-Bodenschutz- und Altlastenverordnung (BBodSchV) sieht in der Prüfung der Verhältnismäßigkeit von Maßnahmen neben Konzentrationen auch Frachten als Entscheidungskriterium vor. Die Schätzung von Frachten im ... -
Antarctic ice sheet expansions in the Middle Miocene and Pliocene
(Univ. Bremen, 2008)This study focuses on the interactions between climate and ice sheets in order to obtain a better understanding of the processes involved. Two periods in the geological past are explored; the Middle Miocene and the ... -
Anti‐Phased Miocene Ice Volume and CO2 Changes by Transient Antarctic Ice Sheet Variability
(Paleoceanography and Paleoclimatology, 2020-11-24)Geological evidence indicates large continental‐scale Antarctic ice volume variations during the early and mid‐Miocene. On million‐year timescales, these variations can largely be explained by equilibrium Antarctic ice ... -
Apology letter.
(Journal of hazardous materials, 2012-09-30) -
Aqueous contaminant removal by metallic iron: Is the paradigm shifting?
(Water SA, 2011)Chemical reduction has long dominated the thinking about the mechanism of aqueous contaminant removal in the presence of metallic iron (e.g. Fe0/H2O systems). However, a large body of experimental evidence indicates that ... -
Archaea in past and present geobiochemical processes and elemental cycles.
(Archaea (Vancouver, B.C.), 2013)For a long time, Archaea have been considered as an ancient prokaryotic group comprising specialists restricted to narrow ecological niches. This opinion might have been supported by the characteristics of the first ... -
Arctic Sea Ice in CMIP6
(Geophysical Research Letters, 2020-05-14)We examine CMIP6 simulations of Arctic sea‐ice area and volume. We find that CMIP6 models produce a wide spread of mean Arctic sea‐ice area, capturing the observational estimate within the multimodel ensemble spread. The ... -
Arsenic Release from a Natural Rock under Near-natural Oxidizing Conditions
(Engineering in Life Sciences, 2008)The effects of carbonate concentration and the presence of iron hydroxide phases on the process of arsenic release from an ore material were investigated under experimental oxic conditions and in the pH range from 6.0 to ... -
Ascomycete fungi on dimension stone of the “Burg Gleichen”, Thuringia
(Environmental Earth Sciences, 2011)In the present study, the diversity of ascomycete fungi was investigated on two wall areas of the “Burg Gleichen”, Thuringia (Germany), made of various types of sandstones, travertine and Grenzdolomit. From a W-exposed, ... -
Aspects of pelagic sedimentation in the Devonian of Western Europe
(Reading : Geological Institute, 1971)During the Devonian of the Rhenich geosyncline (sediments exposed in the Rheinisches Schiefergebirge and Harz Mountains, Central Germany) condensed pelagic limestones, locally rich in cephalopods (Cephalopodenkalk), ... -
Assessing the utility of trace and rare earth elements as biosignatures in microbial iron oxyhydroxides
(Frontiers in Earth Science, 2015)Microbial iron oxyhydroxides are common deposits in natural waters, recent sediments, and mine drainage systems. Along with these minerals, trace and rare earth elements (TREE) are being accumulated within the mineralizing ... -
Assessment of the heterogeneity of hydraulic properties in gravelly outwash plains: a regionally scaled sedimentological analysis in the Munich gravel plain, Germany
(Hydrogeology Journal, 2020-08-11)The favorable overall conditions for the utilization of groundwater in fluvioglacial aquifers are impacted by significant heterogeneity in the hydraulic conductivity, which is related to small-scale facies changes. Knowledge ... -
Atmospheric CO2 fertilization effects on biomass yields of 10 crops in northern Germany
(Frontiers in Environmental Science, 2015)The quality and quantity of the influence that atmospheric CO2 has on crop growth is still a matter of debate. This study's aim is to estimate if [CO2] will have an effect on biomass yields at all, to quantify and spatially ... -
Atmospheric Ionic Deposition in Tropical Sites of Central Sulawesi Determined by Ion Exchange Resin Collectors and Bulk Water Collector
(Water, Air, & Soil Pollution, 2012)In the light of global change, the necessity to monitor atmospheric depositions that have relevant effects on ecosystems is ever increasing particularly for tropical sites. For this study, atmospheric ionic depositions ... -
Aufbau und Betrieb einer Virtuellen Fachbibliothek am Beispiel des Geo- und Montanwissenschaftlichen Portals GEO-LEO
(Bibliothek : Forschung und Praxis, 2007)Die Virtuelle Fachbibliothek GEO-LEO bietet Geo- und Montanwissenschaftlern eine integrierte Suche über Bibliothekskataloge, Literatur-Datenbanken und Volltextserver. Die Sondersammelgebietsbibliotheken in Freiberg und ... -
Auswertung von Pumpversuchen mit computergestützten Verfahren, Version 1.1.
(2008-07-21)Die Durchführung und Auswertung hydraulischer Pumpversuche sind Standardaufgaben in der Hydrogeologie bzw. Grundwasserhydraulik. In den vergangenen 20 Jahren hat sich der Einsatz von computergestützen Verfahren zur Auswertung ... -
Authors’ Reply to the Discussion by Crisci et al. (2021) on “Experimental Deformation of Opalinus Clay at Elevated Temperature and Pressure Conditions Mechanical Properties and the Influence of Rock Fabric”
(Rock Mechanics and Rock Engineering, 2021-11-02)This is a repond to the comments raised in Crisci´s et al. paper “Discussion on “Experimental Deformation of Opalinus Clay at Elevated Temperature and Pressure Conditions ¬ Mechanical Properties and the Influence of Rock ... -
Automated digital data acquisition for landslide inventories
(Landslides, 2020-06-11)Landslide research relies on landslide inventories for a multitude of spatial, temporal, or process analyses. Generally, it takes high effort to populate a landslide inventory with relevant data. In this context, the present ... -
Automated facies identification by Direct Push‐based sensing methods (CPT, HPT) and multivariate linear discriminant analysis to decipher geomorphological changes and storm surge impact on a medieval coastal landscape
(Earth Surface Processes and Landforms, 2021-09-23)In ad 1362, a major storm surge drowned wide areas of cultivated medieval marshland along the north‐western coast of Germany and turned them into tidal flats. This study presents a new methodological approach for the ... -
AVISA: anisotropic visco-ISA model and its performance at cyclic loading
(Acta Geotechnica, 2020-02-19)In this work, a constitutive model able to capture the strain rate dependency, small strain effects and the inherent anisotropy is proposed considering the influence of the overconsolidation ratio (OCR). Small strain effects ...