Web Access Research Portal

Researcher: Stepanov, A (Mr Sasha Stepanov)

Fields of Research

Igneous and Metamorphic Petrology
Inorganic Geochemistry
Exploration Geochemistry
Ore Deposit Petrology
Mineralogy and Crystallography
Tectonics
Geology
Electrochemistry
Geochemistry

Research Objectives

Expanding Knowledge in the Earth Sciences
Diamond Exploration
Mineral Exploration
Precious (Noble) Metal Ore Exploration
Mineral Resources (excl. Energy Resources)
Mining and Extraction of Precious (Noble) Metal Ores
Copper Ore Exploration
Primary Mining and Extraction of Mineral Resources
Mining and Extraction of Titanium Minerals, Zircon, and Rare Earth Metal Ores (e.g. Monazite)
Titanium Minerals, Zircon, and Rare Earth Metal Ore (e.g. Monazite) Exploration
Management of Solid Waste from Energy Activities

Career Best Publications

Brown diamonds from an eclogite xenolith from Udachnaya kimberlite, Yakutia, Russia; Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Experimental study of monazite/melt partitioning with implications for the REE, Th and U geochemistry of crustal rocks; Chemical Geology
Fractionation of Nb and Ta by biotite and phengite: implications for the “missing Nb paradox”; Geology
Geochemistry of ultrahigh-pressure anatexis: fractionation of elements in the Kokchetav gneisses during melting at diamond-facies conditions; Contributions to Mineralogy and Petrology
Metapyroxenite in the mantle transition zone revealed from majorite inclusions in diamonds; Geology
The key role of mica during igneous concentration of tantalum; Contributions to Mineralogy and Petrology
The origin of shoshonites: new insights from the Tertiary high-potassium intrusions of eastern Tibet; Contributions to Mineralogy and Petrology

Research Publications

Brown diamonds from an eclogite xenolith from Udachnaya kimberlite, Yakutia, Russia; Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Causes of variations in morphology and impurities of diamonds from the Udachnaya Pipe eclogite; Russian Geology and Geophysics
Chemical heterogeneity in the diamondiferous eclogite xenolith from the Udachnaya Kimberlite Pipe; Doklady Earth Sciences
CHLORITE AND EPIDOTE CHEMISTRY FOR QUANTUM PACIFIC EXPLORATION, February 2016
CODES report to Newcrest: Lienetz, Lihir PNG pyrite study
Contrasting P-T paths within the Barchi-Kol UHP terrain (Kokchetav Complex): Implications for subduction and exhumation of continental crust; American Mineralogist
Cycles of nutrient trace elements in the Phanerozoic ocean; Gondwana Research
Evaluating porphyry Cu fertility using epidote and chlorite geochemistry for BHP Chile, Dec 2015 - batch 21
Evaluating porphyry Cu-Au fertility using epidote and chlorite geochemistry for Mt Kasi project, report to Newcrest
Experimental study of monazite/melt partitioning with implications for the REE, Th and U geochemistry of crustal rocks; Chemical Geology
Exploring the porphyry environment: Cadia Valley green rock case study final report, March 2015
Final report on the Telfer pyrite project
Fractionation of Nb and Ta by biotite and phengite: implications for the “missing Nb paradox”; Geology
Geochemistry of ultrahigh-pressure anatexis: fractionation of elements in the Kokchetav gneisses during melting at diamond-facies conditions; Contributions to Mineralogy and Petrology
Gold and Arsenopyrite Exsolution and Limits of Arsenic Solubility in Pyrite Investigated by SEM, EPMA, and LA-ICPMS; Microscopy & Microanalysis
Growth rate of the preserved continental crust: II. Constraints from Hf and O isotopes in detrital zircons from Greater Russian Rivers; Geochimica et Cosmochimica Acta
Imaging of trace element distribution in zircon by LA-ICP-MS: insights into ultrahigh-pressure anatexis; European Geosciences Union General Assembly 2014
Lihir pyrite etching as an instrument for visualisation and quantification of pyrite chemistry
Magnetite and epidote chemistry and textures at Ferrobamba Cu-Au-Fe skarn
Melting History of an Ultrahigh-pressure Paragneiss Revealed by Multiphase Solid Inclusions in Garnet, Kokchetav Massif, Kazakhstan; Journal of Petrology
Melting of subducted felsic crust; Goldschmidt 2015
Metapyroxenite in the mantle transition zone revealed from majorite inclusions in diamonds; Geology
Multi-stage enrichment processes for large gold-bearing ore deposits; Ore Geology Reviews
Multi-stage enrichment processes for large gold-bearing ore deposits; SEG 2015 Conference
Nb-Ta fractionation in peraluminous granites: a marker of the magmatic-hydrothermal transition; Geology
New data on the nature of the EPR OK1 and N3 centers in diamond; Applied Magnetic Resonance
Physicochemical conditions of crystallization of dunites of the Nizhnii Tagil Pt-bearing massif (Middle Urals); Russian Geology and Geophysics
Raman mapping of coesite inclusions in garnet from the Kokchetav Massif (Northern Kazakhstan); Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Recrystallization of metastable arsenian pyrite as a source of metals for metamorphic fluids; SEG 2015 Conference
Release of trace elements through the sub-greenschist facies breakdown of detrital rutile to metamorphic titanite in the Otago Schist, New Zealand; The Canadian Mineralogist
Report on geochemistry of quartz from Gosowong goldfield
Report to Barrick on alunite chemistry and paragenesis
Report to Barrick on quartz chemistry
Report to Newcrest on trace element imaging of Red Dome skarn
Stability and metastability of arsenian pyrite; Goldschmidt 2015
Study of local concentration of single substitutional nitrogen atoms in microdiamonds from the Kokchetav massif; European Journal of Mineralogy
The key role of mica during igneous concentration of tantalum; Contributions to Mineralogy and Petrology
The key role of mica during igneous concentration of tantalum: implications for exploration for rare metal deposits; European Geosciences Union General Assembly 2014
The key role of mica in concentration of tantalum during magmatic fractionation of granites; SEG 2015 Conference
The origin of shoshonites: new insights from the Tertiary high-potassium intrusions of eastern Tibet; Contributions to Mineralogy and Petrology
Trace element analysis of rutile
Trace element analysis of sulfide minerals from Kudz Ze Kayah VHMS Deposit, Yukon
Trace element analysis of sulphide minerals from Kudz Ze Kayah VHMS Deposit, Yukon, batches 1, 2, 3
TRACE ELEMENT ANALYSIS OF SULPHIDE MINERALS FROM KUDZ ZE KAYAH VHMS DEPOSIT, YUKON, Batches 1, 2, 3
U-PB GEOCHRONOLOGY FOR ANTOFAGASTA MINERALS, December 2016
U-PB GEOCHRONOLOGY FOR ANTOFAGASTA MINERALS, September 2016
U-PB GEOCHRONOLOGY FOR COPPER CREEK PROJECT, November 2016
U-PB GEOCHRONOLOGY FOR COPPER CREEK PROJECT, September 2016
U-PB GEOCHRONOLOGY FOR KINCORA COPPER December 2016 (VERSION 2)
U-PB GEOCHRONOLOGY FOR PABLO VILLEGAS AT ANGLO-AMERICAN, September 2016
U-PB GEOCHRONOLOGY OF ROCKS FOR MMG, October 2016
U-PB GEOCHRONOLOGY OF ROCKS FOR QUANTUM PACIFIC EXPLORATION, November 2016
U-PB GEOCHRONOLOGY OF ROCKS FOR QUANTUM PACIFIC EXPLORATION, November 2016
U-PB GEOCHRONOLOGY OF ROCKS FOR QUANTUM PACIFIC EXPLORATION, October 2016
U-PB GEOCHRONOLOGY OF ROCKS FOR QUANTUM PACIFIC EXPLORATION, September 2016
UHP gneisses of the Kockhetav complex are sources for proto-shoshonite melts; European Geosciences Union General Assembly 2014
Whole rock and discrete pyrite geochemistry as complementary tracers of ancient ocean chemistry: an example from the Neoproterozoic Doushantuo Formation, China; Geochimica Et Cosmochimica Acta

Research Projects

Chemistry of minerals associated with the occurrence of native metals (in Tasmania); Australian Institute of Nuclear Science & Engineering (AINSE)
Goldschmidt Conference, Prague, Czech Republic; University of Tasmania (UTAS)
Chemistry of minerals associated with the occurrence of native metals (in Tasmania)

Research Candidate Supervision