A5066512991- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Radioactive element chemistry and processing
- Geochemistry and Elemental Analysis
- Metal Extraction and Bioleaching
- Mineralogy and Gemology Studies
- Minerals Flotation and Separation Techniques
- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Analytical chemistry methods development
- Mineral Processing and Grinding
- Geological Studies and Exploration
- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Geological and Tectonic Studies in Latin America
- Groundwater and Isotope Geochemistry
- Mine drainage and remediation techniques
- Geological and Geophysical Studies
- Geochemistry and Geochronology of Asian Mineral Deposits
- Metallurgical Processes and Thermodynamics
- Nuclear Physics and Applications
- Nuclear Materials and Properties
- Extraction and Separation Processes
University of Tasmania
2015-2024
Australian Research Council
2007-2021
Hobart Private Hospital
2016-2017
Siberian Branch of the Russian Academy of Sciences
2007
Australian National University
2007
Max Planck Institute for Chemistry
2007
V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry
1993-1994
Russian Academy of Sciences
1994
Plate tectonic processes introduce basaltic crust (as eclogite) into the peridotitic mantle. The proportions of these two sources in mantle melts are poorly understood. Silica-rich formed from eclogite react with peridotite, converting it to olivine-free pyroxenite. Partial this hybrid pyroxenite higher nickel and silicon but poorer manganese, calcium, magnesium than peridotite. Olivine phenocrysts' compositions record differences were used quantify contributions pyroxenite-derived mid-ocean...
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...
Laser ablation ICP-MS imaging of gold and other trace elements in pyrite from four different sedimenthosted gold-arsenic deposits has revealed two distinct episodes enrichment each deposit: an early synsedimentary stage where invisible is concentrated arsenian diagenetic along with elements, particular, As, Ni, Pb, Zn, Ag, Mo, Te, V, Se; a later hydrothermal forms as either free grains cracks overgrowth metamorphic and/or or narrow goldarsenic rims on the outermost parts pyrite.Compared to...
This paper introduces Petrolog3, software for modeling (1) fractional and equilibrium crystallization, (2) reverse crystallization at variable pressure, melt oxidation state H2O contents, (3) postentrapment reequilibration of inclusions in olivine. Petrolog3 offers an algorithm that allows calculations with a potentially unlimited number mineral-melt models major trace elements describing physical parameters such as density viscosity, state, solubility fluid components silicate melts. The...
Gold mineralization at Sukhoi Log in eastern Siberia is hosted a deformed Neoproterowic organic -bear ing and pyritic black shale siltstone sequence that folded into tight overturned anticline, The deposit contains about 30 million ounces of gold an average grade 2.0 glt Au one the largest known un developed resources, high-grade zone forms gently dipping tabular body core anticline , best grades occur narrow, bedding-parallel pyrite-quartz veinlets have been during main deformation...
Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) analyses of 1,407 sedimentary (diagenetic and syngenetic) pyrites from 45 carbonaceous shale unconsolidated sulfidic sediment samples, ranging in age Paleoarchean to present day, show a considerable range trace element compositions. Arsenic, Ni, Pb, Cu, Co are among the most abundant trace elements, with medians 100 1,000 ppm. Less elements Mo, Sb, Zn, Se have median ranges 10 to ppm, Ag, Bi, Te, Cd, Au 0.01 Our...
Very well preserved fossil vent chimneys from the Silurian Yaman-Kasy volcanogenic-hosted massive sulfide deposit in Southern Urals range decreasing temperatures chalcopyrite-pyrite black smoker to sphalerite- chalcopyrite-marcasite-pyrite gray sphalerite-quartz-barite white assemblages. Laserablation ICPMS analyses show systematic trace element distribution patterns across chimneys. Coarse-grained layers of chalcopyrite central conduits are relatively high Se and Sn but low other...
ABSTRACT The paper describes a calibration standard for quantitative in-situ multi-element analysis of sulphide minerals by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Standard STDGL2b2 is mixture 25% Zn concentrate and 75% pyrrhotite doped with number additional trace elements fused into an X-ray fluorescence (XRF) glass disk. homogeneity the disk has been tested 55 interest. All except Se, Tl, Au Pt are homogenous ( For pyrite, pyrrhotite, chalcopyrite, galena...
The Xincheng gold deposit, hosted by the Early Cretaceous 132 to 123 Ma Guojialing-type granitoids in northwest Jiaodong Peninsula, southeast North China craton, formed about 2 billion years later than regional metamorphism of Archean basement rocks. deposit comprises mineralized zones with three types hydrothermal pyrite associated gold, tellurides, and a variety sulfides: py1 as disseminated euhedral subhedral grains altered around quartz veins; py2 brittle cataclastic textures fractures...
Journal Article Petrology and Geochemistry of Boninites from the North Termination Tonga Trench: Constraints on Generation Conditions Primary High-Ca Boninite Magmas Get access ALEXANDER V. SOBOLEV, SOBOLEV 1Vernadsky Institute Analytical Chemistry, Russian Academy SciencesKosygin st. 19, Moscow 117975, Russia Search for other works by this author on: Oxford Academic Google Scholar LEONID DANYUSHEVSKY Russia2Department Geology, University TasmaniaGPO Box 252C, Hobart, Tasmania, 7001,...
Research Article| October 01, 2004 Kimberlite melts rich in alkali chlorides and carbonates: A potent metasomatic agent the mantle Maya B. Kamenetsky; Kamenetsky 1Max Planck Institut für Chemie, Mainz 55020, Germany, Centre for Ore Deposit Research, University of Tasmania, Hobart, Tasmania 7001, Australia Search other works by this author on: GSW Google Scholar Alexander V. Sobolev; Sobolev 2Max Vernadsky Institute Geochemistry, Moscow 117975, Russia Vadim S. 3Max Roland Maas; Maas 4School...
The Chang'an gold deposit, Yunnan province is one of five large deposits in the Ailaoshan belt that most important ore Sanjiang Tethyan metallogenic domain. Geochemical study pyrite deposit was conducted using laser ablation inductively coupled plasma mass spectroscopy. Three types hydrothermal were identified ores and wall rocks, i.e., coarse euhedral crystals syenite (Py1), grains disseminated altered sandstones or sandstone (Py2), fine-grained (Py3). Their trace elements exhibit different...
We report new geochemical data for boninites and backarc basin‐type basalts recovered from the northern termination of Tonga trench Lau Basin. Boninitic pillow lavas, ranging high‐Mg compositions to andesites dacites, have been erupted within large submarine volcanic edifices (calderas volcanoes) associated with active rifting both end Tofua arc in a position relative volcanoes on Ridge. The mantle sources area are complex mixture (1) “normal” Tongan wedge source that has “Pacific”‐type...
Adakitic rocks were recovered by dredging from the northern termination of Tonga Trench during 1984 voyage R.V. Natsushima and 1996 Melville. These contain magmatic zircons that have been dated at 2·5 Ma U–Pb methods, indicating they are contemporaneous with boninite magmatism previously described this area. This is first time adakites high-Ca boninites reported same active tectonic setting. The classified as high-SiO2 adakites, compositionally consistent an origin partial melts subducted...