A5020609698- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- Astro and Planetary Science
- Planetary Science and Exploration
- Paleontology and Stratigraphy of Fossils
- Mineralogy and Gemology Studies
- Radioactive element chemistry and processing
- Geochemistry and Elemental Analysis
- Geology and Paleoclimatology Research
- Geological Formations and Processes Exploration
- Isotope Analysis in Ecology
- Metallurgical Processes and Thermodynamics
- Geological Studies and Exploration
- Glass properties and applications
- Building materials and conservation
- Earthquake Detection and Analysis
- Recycling and utilization of industrial and municipal waste in materials production
- Hydrocarbon exploration and reservoir analysis
- Thermal and Kinetic Analysis
- Geomagnetism and Paleomagnetism Studies
- Metal Extraction and Bioleaching
- Spacecraft and Cryogenic Technologies
- Electronic Packaging and Soldering Technologies
Ruhr University Bochum
2020-2024
University of Cologne
2018-2024
University of Copenhagen
2024
University of Bonn
2010-2021
Lundin Mining (Portugal)
2017
Australian National University
2006-2009
In low temperature aqueous solutions, it has long been recognized by in situ experiments that many minerals are preceded crystalline nanometre-sized particles and non-crystalline nanophases. For magmatic systems, precursors have not yet demonstrated to exist, although the suggestion around for some time. Here we demonstrate high quench platinum arsenic self-organize nanoparticles, well before melt reached a Pt-As concentration at which discrete Pt arsenide become stable phases. If all highly...
Sulfides are among the most important petrogenetic agents in magmatic systems. They ubiquitous upper-mantle rock types, common as inclusions diamonds and they host significant amounts of geochemically economically chalcophile (‘sulfur-loving’) elements, such Cu, Ni, Pb, In, Au platinum-group elements. Despite their low abundance (<< 1% bulk rock), residual sulfides have a disproportionate control over element budget upper mantle lithologies, well that melts derived from Earth's mantle.
Since ultra-high pressure (UHP) minerals have been discovered in ophiolites from Tibet and the Polar Urals, it is speculated that mantle sections of may originate deep within mantle.The UHP are frequently found together with ultra-reduced silicides, carbides, nitrides.Consequently, argued mantle, or at least domains it, must be highly reduced, so reduced practically all transition elements depth present metallic state.We find problematic to rewrite history ophiolite complexes based on these...
Alteration zones of archeological glasses often show intriguing lamellar patterns in backscattered electron images. Here, we report results static glass corrosion experiments with two different silicate that revealed laminar porosity and subordinately chemical inside silica‐based resemble those seen naturally altered, ancient glasses. Aside from common patterns, more complex were observed developed along a fracture network. The formation such cannot be explained by any the existing models....