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Poster Session 2: Chondritic Components
Thursday, August 1, 2024, 5:30 PM
Marble Room
Charlier J.*
Aléon-Toppani A.
Aléon J.
Brunetto R.
Pillault U.
et al.
Heyday of Hibonite-Pyroxene Spherules
[#6387]
This abstract deals with systematic study of hibonite-pyroxene spherules on numerous groups of carbonaceous chondrites to provide a better petrographic characterization of this unique type of CAI.
This abstract deals with systematic study of hibonite-pyroxene spherules on numerous groups of carbonaceous chondrites to provide a better petrographic characterization of this unique type of CAI.
Futó P.
Gucsik A.*
Fries M.
Micro-Raman Spectroscopy of Silicate Phases of the Kaba Meteorite
[#6201]
The micro-Raman spectroscopy of the matrix of the Kaba meteorite shows that the Mg-, Fe-, Ca-, and Al -bearing species are the most abundant minerals among the silicates.
The micro-Raman spectroscopy of the matrix of the Kaba meteorite shows that the Mg-, Fe-, Ca-, and Al -bearing species are the most abundant minerals among the silicates.
Girich A. L.*
Bischoff A.
Berndt J.
Chondritic Xenolith in the Krymka Chondrite: Fragment of a Carbonaceous or an Acapulcoite-Lodranite Precursor Parent Body?
[#6147]
We present the results of a detailed study of an unusual recrystallized chondritic xenolith with small relic chondrules in the Krymka (LL3.2) chondrite, that can be a fragment of a carbonaceous or an acapulcoite-lodranite precursor parent body.
We present the results of a detailed study of an unusual recrystallized chondritic xenolith with small relic chondrules in the Krymka (LL3.2) chondrite, that can be a fragment of a carbonaceous or an acapulcoite-lodranite precursor parent body.
Johnson N. M.*
Nuth J. A.
Ferguson F. T.
Dust Grains and Carbonaceous Analogs Available for Experiments and Analyses
[#6427]
Analog silicate smokes and carbonaceous solids produced in a controlled laboratory setting are available to the scientific community for use in cosmochemical experiments. These “unprocessed” samples could mimic the earliest, vapor-phase condensates.
Analog silicate smokes and carbonaceous solids produced in a controlled laboratory setting are available to the scientific community for use in cosmochemical experiments. These “unprocessed” samples could mimic the earliest, vapor-phase condensates.
Kerrison N. A.*
Manga V. R.
Zega T. J.
Development of a Nebular Thermochronometer Based on Mg-Al Inversion in Spinel
[#6454]
Mg-Al cation inversion in CAI spinels may reveal the cooling rates experienced by the mineral assemblages. Here, we present a possible spinel nebular thermochronometer based on first-principles calculations of thermodynamics of inversion.
Mg-Al cation inversion in CAI spinels may reveal the cooling rates experienced by the mineral assemblages. Here, we present a possible spinel nebular thermochronometer based on first-principles calculations of thermodynamics of inversion.
Lange T.*
Zipfel J.
Wombacher F.
Elemental Compositions of Components Separated from the Allende CV3 Chondrite
[#6288]
In order to gain insight into the formation of chondritic components, their alteration, and the chemical relationships between components, we obtained data for the elemental compositions for bulk chondrules, matrix, CAIs, and bulk Allende samples.
In order to gain insight into the formation of chondritic components, their alteration, and the chemical relationships between components, we obtained data for the elemental compositions for bulk chondrules, matrix, CAIs, and bulk Allende samples.
Zenie L. C.*
Almeida N. V.
Franchi I. A.
Grady M.
King A. J.
et al.
Relict Forsterite in Unequilibrated Enstatite Chondrites
[#6330]
Identifying and analyzing relict forsterite grains within the chondrules of unequilibrated enstatite chondrites to test the hypothesis of an evolving solar nebular.
Identifying and analyzing relict forsterite grains within the chondrules of unequilibrated enstatite chondrites to test the hypothesis of an evolving solar nebular.
Hezel D. C.*
Barosch J.
Mineralogically Zoned Chondrules in Enstatite Chondrites: Implications for Chondrule Formation Conditions
[#6253]
Chondrules with olivine in the core and pyroxene at the rim record gas-melt exchange during their formation. Previous studies showed most chondrules in CC and about half in OC are mineralogically zoned. Here we show that also EC chondrules are zoned.
Chondrules with olivine in the core and pyroxene at the rim record gas-melt exchange during their formation. Previous studies showed most chondrules in CC and about half in OC are mineralogically zoned. Here we show that also EC chondrules are zoned.
*presenter
