Robert Sievwright
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View article: Diffusion and partition coefficients of minor and trace elements in magnetite as a function of oxygen fugacity at 1150 ºC
Diffusion and partition coefficients of minor and trace elements in magnetite as a function of oxygen fugacity at 1150 ºC Open
Lattice diffusion coefficients and partition coefficients have been determined for Li, Mg, Al, Sc, Ti, Cr, V, Mn, Co, Ni, Cu, Zn, Ga, Y, Zr, Nb, Mo, In, Lu, Hf, Ta and U in single crystals of natural magnetite as a function of oxygen fugac…
View article: Multi-stage arc magma evolution recorded by apatite in volcanic rocks
Multi-stage arc magma evolution recorded by apatite in volcanic rocks Open
<p>The chemical diversity observed in the rock record of volcanic arcs is determined by a multitude of processes operating between the magma source region and the surface. A fundamental step in producing this variability is fractiona…
View article: Multi-stage arc magma evolution recorded by apatite in volcanic rocks
Multi-stage arc magma evolution recorded by apatite in volcanic rocks Open
Protracted magma storage in the deep crust is a key stage in the formation of evolved, hydrous arc magmas that can result in explosive volcanism and the formation of economically valuable magmatic-hydrothermal ore deposits. High magmatic w…
View article: To make better exploration tools, we first need to better understand ore deposits
To make better exploration tools, we first need to better understand ore deposits Open
In an era of industry-funded research, there is an imperative that research yields outcomes that can be applied directly, at the expense of improving fundamental understanding. Reality often proves more complex than our simplistic experime…
View article: Developing magnetite chemistry as an exploration tool for porphyry copper deposits
Developing magnetite chemistry as an exploration tool for porphyry copper deposits Open
There is increasing interest in the use of magnetite as a geochemical proxy to interpret ore forming processes. Using laser ablation inductively-coupled plasma mass spectrometry (LA-ICP-MS), a large range of trace elements in magnetite are…