Search Results - "Bullock, E. S."

Sulfide resorption during crustal ascent and degassing of oceanic plateau basalts by Reekie, C. D. J., Jenner, F. E., Smythe, D. J., Hauri, E. H., Bullock, E. S., Williams, H. M.

“…Mantle plume-related magmas typically have higher chalcophile and siderophile element (CSE) contents than mid-ocean ridge basalts (MORB). These differences are…”
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A Reduced Organic Carbon Component in Martian Basalts by Steele, A., McCubbin, F. M., Fries, M., Kater, L., Boctor, N. Z., Fogel, M. L., Conrad, P. G., Glamoclija, M., Spencer, M., Morrow, A. L., Hammond, M. R., Zare, R. N., Vicenzi, E. P., Siljeström, S., Bowden, R., Herd, C. D. K., Mysen, B. O., Shirey, S. B., Amundsen, H. E. F., Treiman, A. H., Bullock, E. S., Jull, A. J. T.

“…The source and nature of carbon on Mars have been a subject of intense speculation. We report the results of confocal Raman imaging spectroscopy on 11 martian…”
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Mineralogy and texture of Fe-Ni sulfides in CI1 chondrites: Clues to the extent of aqueous alteration on the CI1 parent body by Bullock, E.S., Gounelle, M., Lauretta, D.S., Grady, M.M., Russell, S.S.

“…To better understand the role of aqueous alteration on the CI1 parent body, we have analyzed the texture, composition and mineral associations of iron nickel…”
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Well-resolved variations in the formation ages for Ca–Al-rich inclusions in the early Solar System by MacPherson, G.J., Kita, N.T., Ushikubo, T., Bullock, E.S., Davis, A.M.

“…Recent whole-rock magnesium-isotopic data for calcium-aluminum-rich inclusions (CAIs) in chondrite meteorites indicate that the primary nebular fractionation…”
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The Fate of Sulfur and Chalcophile Elements During Crystallization of the Lunar Magma Ocean by Steenstra, E. S., Berndt, J., Klemme, S., Snape, J. F., Bullock, E. S., van Westrenen, W.

“…To assess the viability of sulfide liquid saturation during crystallization of the lunar magma ocean (LMO), we present a new data set describing both the…”
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Mid-infrared spectroscopy of components in chondrites: Search for processed materials in young Solar Systems and comets by Morlok, A., Lisse, C.M., Mason, A.B., Bullock, E.S., Grady, M.M.

“…•We present FTIR absorption spectra for chondrules, CAIs, fine-grained matrix.•Comparison shows similarity with astronomical dust (circumstellar disks,…”
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Environmental impacts associated with an abandoned mine in the Witbank Coalfield, South Africa by Bell, F.G., Bullock, S.E.T., Hälbich, T.F.J., Lindsay, P.

“…Mining at Middelburg Colliery in the Witbank Coalfield commenced at the turn of the last century. Initially, there was little environmental degradation…”
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Areal inhomogeneities in vapor doped polyaniline films by Long, J.P, Bullock, S.E, Buckley, L.J, Russell, J.N

“…The conductivity of an initially insulating emeraldine base film can be controlled by adjusting its time of exposure to the vapor of a dopant solution. Before…”
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Mid-Infrared Spectroscopy of Components in Chondrites: Search for Processed Materials in Young Solar Systems and Comets by Morlok, A, Lisse, C. M, Mason, A. B, Bullock, E. S, Grady, M. M

“…Icarus 2014, Volume 231, p. 338-355 We obtained mid-infrared spectra of chondrules, matrix, CAIs and bulk material from primitive type 1-4 chondrites in order…”
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Dust from collisions: A way to probe the composition of exo-planets? by Morlok, A, Mason, A. B, Anand, M, Lisse, C. M, Bullock, E. S, Grady, M. M

“…Icarus (2014), Volume 239, p. 1-14 In order to link infrared observations of dust formed during planet formation in debris disks to mid-infrared spectroscopic…”
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Partitioning of Ru, Pd, Ag, Re, Pt, Ir and Au between sulfide-, metal- and silicate liquid at highly reduced conditions: Implications for terrestrial accretion and aubrite parent body evolution by Steenstra, E.S., Berndt, J., Rohrbach, A., Bullock, E.S., van Westrenen, W., Klemme, S., Walter, M.J.

“…The abundances of highly siderophile elements (HSE) in planetary mantles and achondrites potentially provide important constraints on several aspects of planet…”
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Highly reduced accretion of the Earth by large impactors? Evidence from elemental partitioning between sulfide liquids and silicate melts at highly reduced conditions by Steenstra, E.S., Kelderman, E., Berndt, J., Klemme, S., Bullock, E.S., van Westrenen, W.

“…The Earth may have formed at very reducing conditions through the accretion of (a) large reduced and differentiated impactor(s). Segregation of Fe-S liquids…”
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The formation of Type B CAIs: Evolution from Type A CAIs by MacPherson, G.J., Krot, A.N., Kita, N.T., Bullock, E.S., Nagashima, K., Ushikubo, T., Ivanova, M.A.

“…Five Type A CAIs from three CV3 chondrites (Vigarano, Northwest Africa 3118, Allende), which differ in age by no more than ∼105 years, show mineralogical and…”
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Experimental investigation of the bonding of sulfur in highly reduced silicate glasses and melts by Pommier, A., Tauber, M.J., Pirotte, H., Cody, G.D., Steele, A., Bullock, E.S., Charlier, B., Mysen, B.O.

“…Elucidating the role of sulfur on the structure of silicate glasses and melts at elevated pressures and temperatures is important for understanding transport…”
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Metal-silicate partitioning systematics of siderophile elements at reducing conditions: A new experimental database by Steenstra, E.S., Seegers, A.X., Putter, R., Berndt, J., Klemme, S., Matveev, S., Bullock, E.S., van Westrenen, W.

“…The differences in FeO mantle contents and core masses between the terrestrial planets suggest the oxygen fugacity (fO2) during their differentiation likely…”
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Segregation of Na, K, Rb and Cs into the cores of Earth, Mars and Vesta constrained with partitioning experiments by Boujibar, A., Righter, K., Bullock, E.S., Du, Z., Fei, Y.

“…Alkali metals Na, K, Rb and Cs are depleted in planetary mantles and their depletion is commonly attributed to the effect of volatility during the condensation…”
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An experimental assessment of the potential of sulfide saturation of the source regions of eucrites and angrites: Implications for asteroidal models of core formation, late accretion and volatile element depletions by Steenstra, E.S., Berndt, J., Klemme, S., Rohrbach, A., Bullock, E.S., van Westrenen, W.

“…The geochemistry of asteroidal magmas provides fundamental clues to the processes involved in the origin and early evolution of planetary bodies. Although…”
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High precision Al–Mg systematics of forsterite-bearing Type B CAIs from CV3 chondrites by MacPherson, G.J., Bullock, E.S., Tenner, T.J., Nakashima, D., Kita, N.T., Ivanova, M.A., Krot, A.N., Petaev, M.I., Jacobsen, S.B.

“…In order to further elucidate possible temporal relationships between different varieties of calcium-, aluminum-rich inclusions (CAIs), we measured the…”
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Thermal and chemical evolution in the early solar system as recorded by FUN CAIs: Part I – Petrology, mineral chemistry, and isotopic composition of Allende FUN CAI CMS-1 by Williams, C.D., Ushikubo, T., Bullock, E.S., Janney, P.E., Hines, R.R., Kita, N.T., Hervig, R.L., MacPherson, G.J., Mendybaev, R.A., Richter, F.M., Wadhwa, M.

“…Detailed petrologic, geochemical and isotopic analyses of a new FUN CAI from the Allende CV3 meteorite (designated CMS-1) indicate that it formed by extensive…”
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Sulfur solubility in a deep magma ocean and implications for the deep sulfur cycle by Steenstra, E.S., Lord, O.T., Vitale, S., Bullock, E.S., Klemme, S., Walter, M.

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