A5061212733- Geological and Geochemical Analysis
- Paleontology and Stratigraphy of Fossils
- Geochemistry and Geologic Mapping
- Geology and Paleoclimatology Research
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Geochemistry and Elemental Analysis
- Geological Formations and Processes Exploration
- Isotope Analysis in Ecology
- Geological Studies and Exploration
- Planetary Science and Exploration
- Geological and Geophysical Studies
- Heavy metals in environment
- Astro and Planetary Science
- Groundwater and Isotope Geochemistry
- Mercury impact and mitigation studies
- Analytical chemistry methods development
- Selenium in Biological Systems
- Hydrocarbon exploration and reservoir analysis
- Mass Spectrometry Techniques and Applications
- Marine and environmental studies
- Minerals Flotation and Separation Techniques
- Laser-induced spectroscopy and plasma
- Radioactive element chemistry and processing
- Geomagnetism and Paleomagnetism Studies
Utrecht University
2016-2025
University of Münster
2020
Commonwealth Scientific and Industrial Research Organisation
2004
Imperial College London
1998-1999
University of Liverpool
1997
Birkbeck, University of London
1996
This paper reports the results from a second characterisation of 91500 zircon, including data electron probe microanalysis, laser ablation inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS), secondary ion mass (SIMS) and fluorination analyses. The focus this initiative was to establish suitability large single zircon crystal for calibrating in situ analyses rare earth elements oxygen isotopes, as well provide working values key geochemical systems. In addition extensive testing...
We present new analytical data of major and trace elements for the geological MPI‐DING glasses KL2‐G, ML3B‐G, StHs6/80‐G, GOR128‐G, GOR132‐G, BM90/21‐G, T1‐G, ATHO‐G. Different methods were used to obtain a large spectrum element data, in particular, EPMA, SIMS, LA‐ICPMS, isotope dilution by TIMS ICPMS. Altogether, more than 60 qualified geochemical laboratories worldwide contributed analyses, allowing us reference information values their uncertainties (at 95% confidence level) up 74...
Geophysical data indicate that the lithosphere beneath North China Craton (NCC) is ∼80 km thick with high heat flow within craton. This somewhat in disagreement presence of Archaean crustal rocks and kimberlite-hosted xenoliths point to existence garnet–diamond-facies mantle craton, as recently Ordovician. Basalt-hosted entrained during Cenozoic may provide a clue Phanerozoic changes. Of particular note predominance spinel-facies peridotites (75–80 km) paucity garnet-facies peridotites. The...
A. J. G. Mank and P. R. D. Mason, Anal. At. Spectrom., 1999, 14, 1143 DOI: 10.1039/A903304A
Almandine garnet-bearing andesites and dacites occur frequently in the Neogene calc-alkaline volcanic series of northern Pannonian Basin (Hungary Slovakia). They were erupted during early stage volcanism along major tectonic lineaments. On basis petrographic geochemical characteristics, garnets from these rock types are classified into (1) primary phases, (2) composite minerals containing xenocrystic cores magmatic overgrowths (3) derived metamorphic crustal xenoliths. Coexisting phenocrysts...
Research Article| April 01, 2003 Single foraminiferal test chemistry records the marine environment Gert-Jan Reichart; Reichart 1Department of Geochemistry, Faculty Earth Sciences, Utrecht University, P.O. Box 80021, 3508TA Utrecht, The Netherlands Search for other works by this author on: GSW Google Scholar Frans Jorissen; Jorissen 2Laboratoire de Géologie, Faculté Université d'Angers, 2 Boulevard Lavoisier, 49045 Angers cedex, France Pierre Anschutz; Anschutz 3Département Géologie et...
We here provide strong evidence that seagrass beds act as nurseries providing fish to adult populations of a coral reef fish. studied this habitat connectivity by tracing life history movements the Caribbean Ocyurus chrysurus (yellowtail snapper). Carbon‐ and nitrogen‐stable isotope variations in muscle tissue otoliths (ear bones) record former food sources show 98% O. population has likely passed through juveniles during their first 2 yr life. Our findings indicate significant degree...
Although the composition of chlorite group minerals represents a known proxy for conditions in various geological environments, few comparative studies chlorites from different environments have been carried out. In this study, we compare hydrothermal system with those formed under low-grade metamorphic conditions. Both sets samples were collected Pilbara Craton, Western Australia. Near-infrared (NIR) spectroscopy was used to determine if spectral differences record compositional between two...
Miocene to Pleistocene calc-alkaline volcanism in the East Carpathian arc of Romania was related subduction a small ocean basin beneath continental Tisza–Dacia microlate. Volcanic products are predominantly andesitic dadtic composition, with rare basalts and rhyodacites (51–l71% SiO2; mg-number 0.65–0.26) have medium- high-K calcalkaline shoshonitic affinities. Mg, Cr Ni low all rock-types, indicating absence primary erupted compositions. Detailed trace element Sr, Nd, Pb 0 isotope data...
Harzburgites and plagioclase‐peridotites from the Othris Peridotite Massif in Central Greece preserve microstructural petrological evidence for interaction with a melt which became saturated orthopyroxene while migrating by km‐scale diffuse porous flow through thermal boundary layer (TBL) base of lithosphere. The precipitated orthopyroxene, eventually also plagioclase clinopyroxene within peridotites. Major trace element geochemistry suggests that was depleted melt, i.e., fraction melting...
A new method has been developed for the accurate and precise measurement of sulfur isotopes (32S, 33S, 34S) in solids on a scale down to 80–100 μm by laser ablation multiple collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS). The was independently two different sets instrumentation, both which give equivalent results with comparable accuracy precision. first instrumental set-up utilizes Xe gas hexapole collision reaction cell interference attenuation discrimination...
The geodynamic evolution of the South Armenian Block (SAB) within Tethyan realm during Palaeozoic to present-day is poorly constrained. Much SAB covered by Cenozoic sediments so that relationships between and neighbouring terranes Central Iran, Pontides Taurides are unclear. Here we present new geochronological, palaeomagnetic, geochemical constraints shed light on Gondwanan Cimmerian provenance SAB, timing its rifting, since Permian. We report 40Ar/39Ar zircon U-Pb ages compositional data...
Sulfur isotope ratios are difficult to determine by quadrupole ICP-MS due interfering O 2 + and NO molecular ions of high signal intensity at isotopes 32 S 34 S. Rf-only hexapole devices have recently been introduced into instrumentation facilitate ion transfer from interface analyser. By introducing a mixture 'reactive' gases the hexapole, series ion-molecule reactions can be induced reduce or remove polyatomic species. The effects various gas mixtures (He, H Xe) on sulfur through breakdown...