Geologie: Recent submissions
Anzeige der Dokumente 751-775 von 933
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Mass-transport deposits and reservoir quality of Upper Cretaceous Chalk within the German Central Graben, North Sea
(International Journal of Earth Sciences, 2015)The architecture of intra-chalk deposits in the ‘Entenschnabel’ area of the German North Sea is studied based on 3D seismic data. Adapted from seismic reflection characteristics, four types of mass-transport deposits (MTDs) ... -
Metallic iron for environmental remediation: the long walk to evidence
(2013-06-25)The science of metallic iron for environmental remediation is yet to be established. The prevailing theory of the Fe 0 /H 2 O system is characterized by its inability to fully rationalize the concept that holds up the ... -
Metallic Iron for Water Treatment: A Critical Review
(CLEAN - Soil, Air, Water, 2013)Water treatment with metallic iron (Fe0) is still based on the premise that Fe0 is a reducing agent. An alternative concept stipulates that contaminants are removed by adsorption, co-precipitation and size-exclusion in a ... -
δ 13 C chemostratigraphy in the upper Tremadocian through lower Katian (Ordovician) carbonate succession of the Siljan district, central Sweden
(Estonian Journal of Earth Sciences, 2014)Based on δ13C data from two drillcores recovered from the Siljan district, we present a first continuous carbon isotope record of the upper Tremadocian lower Katian limestone succession of central Sweden. New names for ... -
Do U/Pb-SHRIMP Dating and Pb Stepwise Leaching (PbSL) Analyses Confirm the Lack of Precambrian Basement Outcrops in Thailand?
(Open Journal of Geology, 2014)U/Pb-SHRIMP dating and Pb stepwise leaching (PbSL) experiments on zircons and garnets, respectively have confirmed the lack of Precambrian outcrops within the crystalline basement of Thailand. The obtained data for the ... -
DSR: enhanced modelling and refinement of disordered structures with SHELXL
(Journal of Applied Crystallography, 2015)One of the remaining challenges in single-crystal structure refinement is the proper description of disorder in crystal structures. This paper describes a computer program that performs semi-automatic modelling of ... -
Efficient synthesis of readily water-soluble sulfonic Acid carbamates.
(Molecules (Basel, Switzerland), 2015)A series of various readily water-soluble carbamates were synthesized with good yields. These compounds are useful chemical tracers for assessing the cooling progress in a georeservoir during geothermal power plant operation. ... -
Isotope and REE Characterization of Groundwater Aquifers within the Aquifer Storage and Recovery Programme in Sukhothai (N.-Thailand)
(Journal of Water Resource and Protection, 2016)Aquifer Storage and Recovery (ASR) was a pilot project for solving flood and drought problem in the northern part of Chao Phraya River basin, Thailand. This part of Thailand always faces flooding in rainy season and ... -
Franz Kossmat – Subdivision of the Variscan Mountains – a translation of the German text with supplementary notes
(History of Geo- and Space Sciences, 2017)This work is in honour of Franz Kossmat (1871–1938) and his esteemed paper the Gliederung des varistischen Gebirgsbaues published 1927 in Abhandlungen des Sächsischen Geologischen Landesamts, Volume 1, pages 1 to 39. It ... -
Modelling forest lines and forest distribution patterns with remote sensing data in a mountainous region of semi-arid Central Asia
(Biogeosciences Discussions, 2014)Satellite images and digital elevation models provide an excellent database to analyze forest distribution patterns and forest limits in the mountain regions of semiarid central Asia on the regional scale. For the ... -
Recent developments in neutron imaging with applications for porous media research
(Solid Earth, 2016)Computed tomography has become a routine method for probing processes in porous media, and the use of neutron imaging is especially suited to the study of the dynamics of hydrogenous fluids, and of fluids in a ... -
Relict high-Andean ecosystems challenge our concepts of naturalness and human impact
(Scientific Reports, 2017)What would current ecosystems be like without the impact of mankind? This question, which is critical for ecosystem management, has long remained unanswered due to a lack of present-day data from truly undisturbed ecosystems. ... -
Investigating the Release of Co-precipitated Uranium from Iron Oxides
(Journal of Radioanalytical and Nuclear Chemistry, 2006)The removal of uranium (VI) in zerovalent iron permeable reactive barriers and wetlands can be explained by its association with iron oxides. The long term stability of this immobilized U is yet to be addressed. The ... -
Testing Metallic Iron Filtration Systems for Decentralized Water Treatment at Pilot Scale
(Water, 2015)There are many factors to consider for the design of appropriate water treatment systems including: cost, the concentration and type of biological and/or chemical contamination, concentration limits at which contaminant(s) ... -
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 ... -
Designing laboratory metallic iron columns for better result comparability
(Journal of Hazardous Materials, 2011) -
Oxygenic photosynthesis as a protection mechanism for cyanobacteria against iron-encrustation in environments with high Fe(2+) concentrations.
(Frontiers in microbiology, 2014) -
Metallic iron for environmental remediation: learning from the Becher process.
(Journal of hazardous materials, 2009-09-15)Metallic iron (Fe(0)) is a moderately reducing agent that has been reported to be capable of reducing many environmental contaminants. Reduction by Fe(0) used for environmental remediation is a well-known process to organic ... -
A horizontal gene transfer supported the evolution of an early metazoan biomineralization strategy
(BMC Evolutionary Biology, 2011)Background The synchronous and widespread adoption of the ability to biomineralize was a defining event for metazoan evolution during the late Precambrian/early Cambrian 545 million years ago. However our understanding on ... -
Exhumation and uplift of the Sierras Pampeanas: preliminary implications from K–Ar fault gouge dating and low-T thermochronology in the Sierra de Comechingones (Argentina)
(International Journal of Earth Sciences, 2011)The Sierras Pampeanas in central and north-western Argentina constitute a distinct morphotectonic feature between 27°S and 33°S. The last stage of uplift and deformation in this area are interpreted to be closely related ... -
Die Bekämpfung des Hungers und der Streit um die Weltagrarmärkte in der Doha-Runde der WTO: Imperialistische Politik und ihre Kritiker
(ACME: An International E-Journal for Critical Geographies, 2008)Die World Trade Organization (WTO) und besonders die Doha- Verhandlungen über die Weltagrarmärkte stehen vielfach in der Kritik, gegenüber der dringlichen Aufgabe zu versagen, den Hunger in der Welt zu bekämpfen. Zum einen ... -
Trace elements and cathodoluminescence of quartz in stockwork veins of Mongolian porphyry-style deposits
(Mineralium Deposita, 2010)The combination of scanning electron microscope–cathodoluminescence (CL), fluid inclusion analysis and high-resolution electron probe microanalysis of Al, Ti, K and Fe in vein quartz has yielded results permitting a greater ... -
Particulate organic carbon (POC) in relation to other pore water carbon fractions in drained and rewetted fens in Southern Germany
(Biogeosciences, 2008)Numerous studies have dealt with carbon (C) contents in Histosols, but there are no studies quantifying the relative importance of the individual C components in pore waters. For this study, measurements were taken of ...