A Study of Chromium and Silicon Nitrides in Carbonaceous Chondrites
Leitner J., Vollmer C., Harries D., Kodolányi J., Ott U., et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #1878 PDF “We identified Si3N4 and CrN in metal-sulfide grains in a set of carbonaceous…
Hydrated Minerals on B-class Asteroids
Rivkin A. S., Howell E. S., Emery J. P., Richardson M. 52nd Lunar and Planetary Science Conference (2021), Abstract #1945 PDF “B is for Bennu.” / Is that good enough for you? / Spectra disagree.”
Constraints on Chondrule Generation, Disk Dynamics, and Asteroid Accretion from the Compositions of Carbonaceous Meteorites
Bryson J. F. J., Brennecka G. A. 52nd Lunar and Planetary Science Conference (2021), Abstract #1301 PDF “The compositions of CC chondrites and iron meteorites originate from mixing NC chondrite material, CAI material, and CI…
Hydrothermal Ammoniation of Chondrites: Implications for Ceres
Izawa M. R. M., Koutoula E., Stancu M.-N., Yamashita S., Okuchi T. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #2247 PDF “Hydrothermal reactions between carbonaceous chondrites and ammonia-water solutions do not produce…
Presolar Grain Abundance Variation in the Miller Range 090019 CO3.1 Chondrite
Nguyen A. N., Mane P., Ross D. K., Simon J. I. 52nd Lunar and Planetary Science Conference (2021), Abstract #2709 PDF “We determine a presolar O-rich grain abundance of 99ppm in MIL 090019 CO3.1. One…
The Presolar Grain Database for Silicon Carbide — Grain Type Assignments
Stephan T., Bose M., Boujibar A., Davis A. M., Gyngard F. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #2358 PDF “The updated Presolar Grain Database now contains data for 19,976 SiC grains….
What Have We Learned About the Interior and Surface of Mars from Martian Meteorites
Udry A., Howarth G. H., Herd C. D. K., Day J. M. D., Lapen T. K. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #1046 PDF “Martian meteorites are the only samples that…
Characterization of the Serra Pelada Meteorite by Raman: Implications for Planetary Formation and Hypotheses of Water Origin
Roque C., Nascimento-Dias B. L. 52nd Lunar and Planetary Science Conference (2021), Abstract #1312 PDF “This work performed the chemical and mineralogical characterization of the Serra Pelada meteorite, analyzing the implications of this meteorite for…
The Detection of Aromatic Amino Acids in CR Chondrites Suggests They are Prebiotically Plausible
Burton A. S., Berger E. L., Fox A. C., Lee C. 52nd Lunar and Planetary Science Conference (2021), Abstract #1475 PDF “Aromatic amino acids are hard to make in the lab, but their presence as…
Stalking a Large Carbonaceous Chondrite Asteroid Using ε54Cr-Δ17O Isotope Systematics of the Unique Xenolith Almahata Sitta 202
Miller A. M., Dey S., Yin Q.-Z., Goodrich C. A., Hamilton V. E., et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #2360 PDF “Xenolithic clast, unique among the regolith: Who was your parent?”
Inheritance of Meteoritic Isotopic Anomalies from a Zoned Protosolar Cloud
Jacquet E., Pignatale F. C. 52nd Lunar and Planetary Science Conference (2021), Abstract #1042 PDF “Sequential infall from an isotopically zoned protosolar cloud created the range of isotopic compositions fossilized by CAIs. Bulk meteorites sample…
NRLEE Nucleosynthesis
Meyer B. S., Bermingham K. R., Frizzell K., Mezger K. 52nd Lunar and Planetary Science Conference (2021), Abstract #2598 PDF “NRLEEs are likely some sort of exploding white dwarf stars. They produce neutron-rich iron-group isotopes…
Isotopic Constraints on the Building Blocks of the Solar System
Bermingham K. R., Meyer B. S., Frizzell K., Mezger K. M. 52nd Lunar and Planetary Science Conference (2021), Abstract #2107 PDF “Isotopic variations in meteorites coupled with new nucleosynthesis models are used to constrain the…
Geochemical Constraints on Potential UOC Chondrule Genesis by Hypervelocity Impact Vapor Plumes and Likely Precursor Sources
Sheikh D., Humayun M. 52nd Lunar and Planetary Science Conference (2021), Abstract #1279 PDF “Most UOC chondrules analyzed exhibit Ce, and Eu anomalies, implying a chondrule forming process that began oxidized but went reducing, consistent…
K Isotope Systematics of the CB Chondrite Gujba: Testing the Impact Plume Model of Formation
Koefoed P., Pravdivtseva O., Ogliore R., Jiang Y., Lodders K. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #2310 PDF “High-precision K isotope analysis of chondrule and bulk fractions from the CB chondrite…
Producing Chondrules in the Outer Solar System: The Effect of Ice on Impact Jetting
Cashion M. D., Johnson B. C., Wakita S., Davison T., Krot A. N. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #1737 PDF “In this work, we simulate collisions between bodies of mixed…
High Precision Al-Mg Chronology of Chondrules in Unequilibrated Ordinary Chondrites
Siron G., Kita N. T., Fukuda K., Kimura M., 52nd Lunar and Planetary Science Conference (2021), Abstract #1639 PDF “New analyses of UOC chondrules with a range of mesostasis compositions indicate a restrict range of…
Insights from Siderophile Elements into the Impact Origin of Mesosiderites
Dhaliwal J. K., Horan M. F., Ash R. D., Bullock E. S., Carlson R. W. 52nd Lunar and Planetary Science Conference (2021), Abstract #2236 PDF “Space rocks and breccias / Iron-loving elements / How did…
Further Insights of Temperature-Time Events on HED Parent Body Using U-Th-Pb Chronology of Zircon-Bearing Noritic Diogenite Northwest Africa 10666
Martinez C., Righter M., Lapen T. J., Irving A. J. 52nd Lunar and Planetary Science Conference (2021), Abstract #2699 PDF “We report zircon and apatite U-Th-Pb isotopic dating of zircon-bearing diogenite NWA 10666. The results…
Almahata Sitta is No More Exotic Than any Other Polymict Ureilite
Goodrich C. A., Bottke W. F., Walsh K. J., Daly R. T. 52nd Lunar and Planetary Science Conference (2021), Abstract #1331 PDF “Almahata Sitta (asteroid 2008 TC3) and typical polymict ureilites most likely formed in…
In Situ Constraints on the 60Fe Abundance in the Early Solar System
Kodolányi J., Hoppe P., Vollmer C. 52nd Lunar and Planetary Science Conference (2021), Abstract #1291 PDF “New NanoSIMS analyses of old chondrules (Al-Mg age: 1-2 million years after canonical CAIs) do not find significant in…
Constraints on the Ice Composition of Carbonaceous Chondrites
Sridhar N., Bryson J. F. J., King A. J., Harrison R. J. 52nd Lunar and Planetary Science Conference (2021), Abstract #1095 PDF “Compared to the CO and CM chondrites, magnetic measurements indicate that the CI…
Analysis of the Solar Proton Effects in the Stubenberg and Jesenice Chondrites
Ustinova G. K. 52nd Lunar and Planetary Science Conference (2021), Abstract #1310 PDF “The solar cosmic ray contributions to production of cosmogenic radionuclides in the near-surface layers of the chondrites of low ablation are estimated….
Organic Compounds in Mahadevpur H4/5 and Natun Balijan L4 Ordinary Chondrites by Raman Spectroscopy
Saikia B. J., Parthasarathy G., Borah R. R. 52nd Lunar and Planetary Science Conference (2021), Abstract #1853 PDF “Herein we identify organic trace in Mahadevpur H4/5 and Natun Balijan L4 ordinary chondrites by Raman Spectroscopy.”
