Search Results - "Frost, D.J."

Hydrous melting and partitioning in and above the mantle transition zone: Insights from water-rich MgO–SiO2–H2O experiments by Myhill, R., Frost, D.J., Novella, D.

“…Hydrous melting at high pressures affects the physical properties, dynamics and chemical differentiation of the Earth. However, probing the compositions of…”
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Fluorine partitioning between eclogitic garnet, clinopyroxene, and melt at upper mantle conditions by Beyer, C., Klemme, S., Grützner, T., Ireland, T.R., Magee, C.W., Frost, D.J.

“…In this experimental study we obtained new mineral/melt (DF=cmineral/cmelt) partitioning data for fluorine in a bimineralic hydrous eclogite under Earth's…”
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The redox state of the mantle during and just after core formation by Frost, D.J, Mann, U, Asahara, Y, Rubie, D.C

“…contents to increase while the oxidation state of accreting material remained constant (homogeneous accretion). Using measured metal–silicate partition…”
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Magnesium silicate perovskite and effect of iron oxidation state on its bulk sound velocity at the conditions of the lower mantle by Glazyrin, K., Boffa Ballaran, T., Frost, D.J., McCammon, C., Kantor, A., Merlini, M., Hanfland, M., Dubrovinsky, L.

“…A comprehensive understanding of the iron- and aluminum-bearing magnesium silicate perovskite (Pv) crystal structure and its evolution under pressure is vital…”
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Partitioning of FeO between magnesiowüstite and liquid iron at high pressures and temperatures: Implications for the composition of the Earth's outer core by Asahara, Y., Frost, D.J., Rubie, D.C.

“…Although oxygen is a possible light element in the Earth's core, the effect of pressure on the concentration of this element in metallic iron has been a…”
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Forsterite to wadsleyite phase transformation under shear stress and consequences for the Earth's mantle transition zone by Demouchy, S., Mainprice, D., Tommasi, A., Couvy, H., Barou, F., Frost, D.J., Cordier, P.

“…We have studied the phase transformation of forsterite to wadsleyite under shear stress at the Earth's transition zone pressure and temperature conditions…”
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Effect of pressure on Fe–Mg, Ni and Mn diffusion in (FexMg1−x)2SiO4 olivine by Holzapfel, C., Chakraborty, S., Rubie, D.C., Frost, D.J.

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The effect of aluminum and water on the development of deformation fabrics of orthopyroxene by Manthilake, M. A. G. M., Miyajima, N., Heidelbach, F., Soustelle, V., Frost, D. J.

“…The effect of alumina and water solubility on the development of fabric in orthopyroxene in response to simple shear deformation has been investigated at a…”
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Experimental constraints on crystallization differentiation in a deep magma ocean by Walter, M.J., Nakamura, E., Trønnes, R.G., Frost, D.J.

“…Major and trace element mineral/melt partition coefficients are presented for phases on the liquidus of fertile peridotite at 23–23.5 GPa and 2300 °C…”
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Combining FIB milling and conventional Argon ion milling techniques to prepare high-quality site-specific TEM samples for quantitative EELS analysis of oxygen in molten iron by MIYAJIMA, N, HOLZAPFEL, C, ASAHARA, Y, DUBROVINSKY, L, FROST, D.J, RUBIE, D.C, DRECHSLER, M, NIWA, K, ICHIHARA, M, YAGI, T

“…This paper reports a procedure to combine the focused ion beam micro-sampling method with conventional Ar-milling to prepare high-quality site-specific…”
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Impurity diffusion and microstructure in diamonds deformed at high pressures and temperatures by Shiryaev, A.A., Frost, D.J., Langenhorst, F.

“…Results of a comprehensive study of the influence of deformation at high-pressure and high-temperature conditions on diamond microstructure and nitrogen…”
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Oxidation state of iron in hydrous mantle phases: implications for subduction and mantle oxygen fugacity by McCammon, C.A, Frost, D.J, Smyth, J.R, Laustsen, H.M.S, Kawamoto, T, Ross, N.L, van Aken, P.A

“…Samples of olivine, wadsleyite, ringwoodite and majorite with Mg/(Mg+Fe)=0.85–0.90 were synthesised at high pressure and temperature using a multianvil press…”
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Fe–Mg interdiffusion in wadsleyite: The role of pressure, temperature and composition and the magnitude of jump in diffusion rates at the 410km discontinuity by Holzapfel, C., Chakraborty, S., Rubie, D.C., Frost, D.J.

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Stabilities and equations of state of dense hydrous magnesium silicates by Angel, R.J., Frost, D.J., Ross, N.L., Hemley, R.

“…The thermodynamic stability of high-pressure phases in the ternary system MgO–SiO 2–H 2O is reviewed with special emphasis on hydrated phases including the…”
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Effect of pressure on Fe–Mg interdiffusion in (Fe xMg 1− x)O, ferropericlase by Holzapfel, C., Rubie, D.C., Mackwell, S., Frost, D.J.

“…Fe–Mg interdiffusion in ferropericlase has been studied at pressures between 8 and 23 GPa and temperatures between 1653 and 2073 K, using a multianvil…”
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Brief report: Emotion regulation and coping as moderators in the relationship between personality and self-injury by Hasking, Penelope A, Coric, Sarah J, Swannell, Sarah, Martin, Graham, Thompson, Holly Knox, Frost, Aaron D.J

“…Abstract Self-injury without conscious suicidal intent is an increasingly prevalent phenomenon particularly among adolescent populations. This pilot study…”
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Accretion and differentiation of the terrestrial planets with implications for the compositions of early-formed Solar System bodies and accretion of water by Rubie, D.C., Jacobson, S.A., Morbidelli, A., O’Brien, D.P., Young, E.D., de Vries, J., Nimmo, F., Palme, H., Frost, D.J.

“…•We combine N-body accretion and core–mantle differentiation models.•We model the chemical evolution of the mantles and cores of the terrestrial planets.•Tight…”
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Experimental calibration of a garnet–clinopyroxene geobarometer for mantle eclogites by Beyer, C., Frost, D. J., Miyajima, N.

“…Thermodynamic parameters have been calibrated for a geobarometer suitable for use on eclogitic mantle xenoliths. The barometer is based on the incorporation of…”
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Metal–silicate partitioning of W and Mo and the role of carbon in controlling their abundances in the bulk silicate earth by Jennings, E.S., Jacobson, S.A., Rubie, D.C., Nakajima, Y., Vogel, A.K., Rose-Weston, L.A., Frost, D.J.

“…The liquid metal–liquid silicate partitioning of molybdenum and tungsten during core formation must be well-constrained in order to understand the evolution of…”
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Is a national framework for implementing early psychosis services necessary? Results of a survey of Australian mental health service directors by Catts, Stanley V., Evans, Russell W., O'Toole, Brian I., Carr, Vaughan J., Lewin, Terry, Neil, Amanda L., Harris, Meredith G., Frost, Aaron D.J., Crissman, Belinda R., Eadie, Kathy

“…Aim: Expert opinion holds that the rate of implementation of specialist services for first presentation psychosis in Australia is much too slow. We aimed to…”
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