A5032006649- Geochemistry and Geologic Mapping
- Mine drainage and remediation techniques
- Metal Extraction and Bioleaching
- Laser-induced spectroscopy and plasma
- Geological and Geochemical Analysis
- Minerals Flotation and Separation Techniques
- Groundwater flow and contamination studies
- Geophysical and Geoelectrical Methods
- Mineral Processing and Grinding
- Tailings Management and Properties
- Cultural Heritage Materials Analysis
- Hydrocarbon exploration and reservoir analysis
- Advanced X-ray and CT Imaging
- X-ray Spectroscopy and Fluorescence Analysis
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- Heavy metals in environment
- Geochemistry and Elemental Analysis
- Geomagnetism and Paleomagnetism Studies
- Soil and Unsaturated Flow
- Mineralogy and Gemology Studies
- Geological formations and processes
- CO2 Sequestration and Geologic Interactions
- Geotechnical and Geomechanical Engineering
- Radioactivity and Radon Measurements
Leibniz University Hannover
2022-2025
Federal Institute for Geosciences and Natural Resources
2011-2024
Hannover Re (Germany)
2021
Laser- und Medizin-Technologie (Germany)
2016
Culture Resource
2012
Universität Innsbruck
1982
Abstract The Ötztal Nappe (Austroalpine Superunit, Eastern Alps) is volumetrically the largest polymetamorphic nappe of western Austroalpine stack and consists paragneisses micaschists with various intercalations orthogneisses, amphibolites rare marbles. main foliation these rocks cross-cut by numerous dikes basaltic to andesitic composition. Field- textural investigations reveal that underwent only Eoalpine metamorphism deformation are not part earlier Variscan history region. While...
Epigenetic, N-S, NNE-SSW quartz veins crosscut metapelites and metagabbro in Maru area. The objectives of this work were to study field, mineralogy, geochemical characteristics gold bearing soils. Euhedral polygonal magnetite with hematite constituted the major ore minerals. Quartz occurred as main gangue phase appreciable sericite chlorite. mineralogy soil retrieved from twelve minor fields examined X-ray diffraction is ± albite microcline muscovite hornblende illite kaolinite halloysite...
Abstract. Recent developments in the application of micro-energy-dispersive X-ray fluorescence spectrometry mapping (µ-EDXRF) have opened up new opportunities for fast geoscientific analyses. Acquiring spatially resolved spectral and chemical information non-destructively large samples to 20 cm length provides valuable interpretation. Using supervised classification information, mineral distribution maps can be obtained. In this work, thin sections plutonic rocks are analyzed by µ-EDXRF...
Energy-dispersive X-ray fluorescence (EDXRF) analysis is one of the standard techniques for evaluation mineral deposits. The advantage EDXRF fast delivery information about bulk elemental composition as well each class. With micro energy-dispersive (µ-EDXRF) analysis, can be obtained with a micrometer resolution. However, it has some limitations. EDXRF, light elements (e.g., lithium) cannot detected, and count rates carbon, fluorine sodium are very low. This might lead to misinterpretation...
A new approach using scanning Laser Induced Breakdown Spectroscopy (LIBS) was developed to unravel cryptic variations in the mineral chemistry of chromite, orthopyroxene, and plagioclase drill core from Merensky Reef UG-2. The LIBS method provides continuous spatially resolved chemical data, elucidating element partitioning, taking into account textural features rock itself, individual minerals, immediate neighbourhoods. Since is relatively fast easy apply numerous sections, it special...
Laser-induced breakdown spectroscopy (LIBS) is expanded for rapid determination of key mineral species in copper ores.
Abstract Purpose The production of apple fruits in orchards or plants tree nurseries is negatively affected by replant disease (ARD), worldwide. Our objective was to develop a method counteract ARD without applying chemical soil disinfection. We tested if an addition clays with high release plant available silicon reduces symptoms and biochemical effect on the defence reaction occurs. Methods In greenhouse experiment, rootstocks ‘M26’ were grown for 8 weeks sandy soil, heat disinfected...
Electrical conductivity can easily be measured, but interpretation is ambiguous since saturation, fluid conductivity, and material properties are interacting parameters. This study aims to indirectly obtain evolution in time space column experiments by repetitively applying two independent non‐destructive multi‐level methods. Water derived from the difference x‐ray attenuation dry, partially fully saturated sand filled columns. Also, it used calculate electrical intervals for each depth...
Abstract Based on petrographic, mineralogical and geochemical data, two groups of rodingites have been documented from the polymetamorphic Vumba Schist Belt Botswana. Group I contain relict chromite grains with zoned uvarovite-grossular + clinopyroxene epidote/zoisite ± quartz, whereas group II no uvarovite. Although presence Cr/(Cr Al Fe 3+ ) ratio > 90, similar to chromites found in komatiites, suggests a possible komatiitic origin rodingites, major trace element chemical data most...