Search Results - "MACPHERSON, Glenn J"

26Al-26Mg isotope systematics of the first solids in the early solar system by Kita, Noriko T., Yin, Qing-Zhu, MacPherson, Glenn J., Ushikubo, Takayuki, Jacobsen, Benjamin, Nagashima, Kazuhide, Kurahashi, Erika, Krot, Alexander N., Jacobsen, Stein B.

“…High‐precision bulk aluminum‐magnesium isotope measurements of calcium‐aluminum‐rich inclusions (CAIs) from CV carbonaceous chondrites in several laboratories…”
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The formation of Ca-, Fe-rich silicates in reduced and oxidized CV chondrites: The roles of impact-modified porosity and permeability, and heterogeneous distribution of water ices by MacPherson, Glenn J., Krot, Alexander N.

“…CV (Vigarano type) carbonaceous chondrites, comprising Allende‐like (CVoxA) and Bali‐like (CVoxB) oxidized and reduced (CVred) subgroups, experienced differing…”
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Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space by Lin, Chaney, Hollister, Lincoln S., MacPherson, Glenn J., Bindi, Luca, Ma, Chi, Andronicos, Christopher L., Steinhardt, Paul J.

“…We report on a fragment of the quasicrystal-bearing CV3 carbonaceous chondrite Khatyrka recovered from fine-grained, clay-rich sediments in the Koryak…”
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Cosmochemical evidence for astrophysical processes during the formation of our solar system by MacPherson, Glenn J, Boss, Alan

“…Through the laboratory study of ancient solar system materials such as meteorites and comet dust, we can recognize evidence for the same star-formation…”
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Impact-induced shock and the formation of natural quasicrystals in the early solar system by Hollister, Lincoln S., Bindi, Luca, Yao, Nan, Poirier, Gerald R., Andronicos, Christopher L., MacPherson, Glenn J., Lin, Chaney, Distler, Vadim V., Eddy, Michael P., Kostin, Alexander, Kryachko, Valery, Steinhardt, William M., Yudovskaya, Marina, Eiler, John M., Guan, Yunbin, Clarke, Jamil J., Steinhardt, Paul J.

“…The discovery of a natural quasicrystal, icosahedrite (Al 63 Cu 24 Fe 13 ), accompanied by khatyrkite (CuAl 2 ) and cupalite (CuAl) in the CV3 carbonaceous…”
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A compound Ca-, Al-rich inclusion from CV3 chondrite Northwest Africa 3118: Implications for understanding processes during CAI formation by Ivanova, Marina A., Lorenz, Cyril A., Krot, Alexander N., MacPherson, Glenn J.

“…A calcium‐aluminum‐rich inclusion 3N from the Northwest Africa (NWA) 3118 CV3 carbonaceous chondrite is a unique cm‐sized compound object, primarily a…”
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Compound ultrarefractory CAI-bearing inclusions from CV3 carbonaceous chondrites by IVANOVA, Marina A., KROT, Alexander N., NAGASHIMA, Kazuhide, MacPHERSON, Glenn J.

“…– Two compound calcium‐aluminum‐rich inclusions (CAIs), 3N from the oxidized CV chondrite Northwest Africa (NWA) 3118 and 33E from the reduced CV chondrite…”
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Khatyrka, a new CV3 find from the Koryak Mountains, Eastern Russia by MacPherson, Glenn J., Andronicos, Christopher L., Bindi, Luca, Distler, Vadim V., Eddy, Michael P., Eiler, John M., Guan, Yunbin, Hollister, Lincoln S., Kostin, Alexander, Kryachko, Valery, Steinhardt, William M., Yudovskaya, Marina, Steinhardt, Paul J.

“…A new meteorite find, named Khatyrka, was recovered from eastern Siberia as a result of a search for naturally occurring quasicrystals. The meteorite occurs as…”
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Cosmochemistry: Understanding the Solar System through analysis of extraterrestrial materials by MacPherson, Glenn J, Thiemens, Mark H

“…Cosmochemistry is the chemical analysis of extraterrestrial materials. This term generally is taken to mean laboratory analysis, which is the cosmochemistry…”
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Fossil records of early solar irradiation and cosmolocation of the CAI factory: A reappraisal by Bekaert, David V, Auro, Maureen, Shollenberger, Quinn R, Liu, Ming-Chang, Marschall, Horst, Burton, Kevin W, Jacobsen, Benjamin, Brennecka, Gregory A, MacPherson, Glenn J, von Mutius, Richard, Sarafian, Adam, Nielsen, Sune G

“…Calcium-aluminum–rich inclusions (CAIs) in meteorites carry crucial information about the environmental conditions of the nascent Solar System prior to planet…”
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Forsterite-bearing type B refractory inclusions from CV3 chondrites: From aggregates to volatilized melt droplets by BULLOCK, Emma S., MacPHERSON, Glenn J., NAGASHIMA, Kazuhide, KROT, Alexander N., PETAEV, Michail I., JACOBSEN, Stein B., ULYANOV, Alexander A.

“…– Detailed petrologic and oxygen isotopic analysis of six forsterite‐bearing Type B calcium‐aluminum‐rich inclusions (FoBs) from CV3 chondrites indicates that…”
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Mg and Si isotopic fractionation patterns in types B1 and B2 CAIs: Implications for formation under different nebular conditions by Bullock, Emma S., Knight, Kim B., Richter, Frank M., Kita, Noriko T., Ushikubo, Takayuki, MacPherson, Glenn J., Davis, Andrew M., Mendybaev, Ruslan A.

“…Magnesium and silicon isotopic profiles across melilite grains in two type B1 and two type B2 calcium‐aluminum‐rich inclusions (CAIs) reveal differing but…”
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Chemical and oxygen isotopic compositions of accretionary rim and matrix olivine in CV chondrites: Constraints on the evolution of nebular dust by Cosarinsky, Mariana, Leshin, Laurie A., MacPherson, Glenn J., Guan, Yunbin, Krot, Alexander N.

“…A correlation of petrography, mineral chemistry and in situ oxygen isotopic compositions of fine-grained olivine from the matrix and of fine- and…”
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Al‐Mg isotopic study of spinel‐rich fine‐grained CAIs by MacPherson, Glenn J., Krot, Alexander N., Nagashima, Kazuhide

“…High‐precision SIMS analyses of seven spinel‐rich fine‐grained CAIs from the CV3 chondrites Efremovka, Kaba, and Vigarano and the LL3.0 chondrite Semarkona,…”
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TOF-SIMS analysis of cometary matter in Stardust aerogel tracks by Stephan, Thomas, Rost, Detlef, Vicenzi, Edward P., Bullock, Emma S., MacPherson, Glenn J., Westphal, Andrew J., Snead, Christopher J., Flynn, George J., Sandford, Scott A., Zolensky, Michael E.

“…— Cometary matter in aerogel samples from the Stardust mission was investigated with TOF‐SIMS for its elemental and organic composition. While single grains >1…”
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Remelting of refractory inclusions in the chondrule-forming regions: Evidence from chondrule-bearing type C calcium-aluminum-rich inclusions from Allende by Krot, Alexander N., Yurimoto, Hisayoshi, Hutcheon, Ian D., Chaussidon, Marc, MacPherson, Glenn J., Paque, Julie

“…— We describe the mineralogy, petrology, oxygen, and magnesium isotope compositions of three coarse‐grained, igneous, anorthite‐rich (type C) Ca‐Al‐rich…”
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Natural quasicrystal with decagonal symmetry by Bindi, Luca, Yao, Nan, Lin, Chaney, Hollister, Lincoln S., Andronicos, Christopher L., Distler, Vadim V., Eddy, Michael P., Kostin, Alexander, Kryachko, Valery, MacPherson, Glenn J., Steinhardt, William M., Yudovskaya, Marina, Steinhardt, Paul J.

“…We report the first occurrence of a natural quasicrystal with decagonal symmetry. The quasicrystal, with composition Al 71 Ni 24 Fe 5 , was discovered in the…”
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Oxygen Isotopic Abundances in Calcium-Aluminum-Rich Inclusions from Ordinary Chondrites: Implications for Nebular Heterogeneity by McKeegan, Kevin D., Leshin, Laurie A., Russell, Sara S., MacPherson, Glenn J.

“…The oxygen isotopic compositions of two calcium-aluminum-rich inclusions (CAIs) from the unequilibrated ordinary chondrite meteorites Quinyambie and Semarkona…”
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Fine-grained, spinel-rich inclusions from the reduced CV chondrite Efremovka: II. Oxygen isotopic compositions by ALÉON, Jérôme, KROT, Alexander N., MCKEEGAN, Kevin D., MACPHERSON, Glenn J., ULYANOV, Alexander A.

“…— Oxygen isotopes have been measured by ion microprobe in individual minerals (spinel, Al‐Ti‐diopside, melilite, and anorthite) within four relatively…”
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Calcium-Aluminum-Rich Inclusions from Enstatite Chondrites: Indigenous or Foreign? by Guan, Yunbin, Huss, Gary R., MacPherson, Glenn J., Wasserburg, Gerald J.

“…The primary mineral assemblages and initial26Al/27Al ratios of rare calcium-aluminum-rich inclusions (CAIs) from enstatite (E) chondrites are similar to those…”
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