Geoelectrochemistry-driven alteration of amino acids to derivative organics in carbonaceous chondrite parent bodies [PDF]
Nature Communications, 2022 Researchers at Earth-Life Science Institute (ELSI) discovered a chemical process that can explain the very low amino acid abundances in aqueously altered carbonaceous chondrites, deepening our understanding on the Solar System chemical evolution.
Yamei Li +5 more
doaj +2 more sources
Nano-FTIR spectroscopic identification of prebiotic carbonyl compounds in Dominion Range 08006 carbonaceous chondrite [PDF]
Scientific Reports, 2021 Meteorites contain organic matter that may have contributed to the origin of life on Earth. Carbonyl compounds such as aldehydes and carboxylic acids, which occur in meteorites, may be precursors of biologically necessary organic materials in the solar ...
Mehmet Yesiltas +2 more
doaj +2 more sources
Abiotic sugar enantiomers in the CI carbonaceous chondrite Orgueil [PDF]
Nature CommunicationsThe uneven detection of prebiotic organic compounds in meteorites—where amino acids and nucleobases are commonly identified but sugars remain rare and poorly characterized—limits our understanding of extraterrestrial organic chemistry.
Vanessa Leyva +4 more
doaj +2 more sources
Alkali magmatism on a carbonaceous chondrite planetesimal. [PDF]
Proc Natl Acad Sci U S A, 2020 SignificanceIn spite of magnetic and isotopic evidence revealing connections between the most primitive outer Solar System materials and differentiated bodies with a layered structure akin to terrestrial planets, the meteoritic record lacks samples that document the initiation of partial melting and the onset of planetary differentiation.
Aléon J +5 more
europepmc +4 more sources
Young asteroidal fluid activity revealed by absolute age from apatite in carbonaceous chondrite [PDF]
Nature Communications, 2016 Chondritic meteorites formed in the early solar system and may tell us about primary processes at that time. Here, Zhang et al. report an absolute 207Pb/206Pb isochron age (4,450±50 Ma) of apatite from a carbonaceous chondrite constraining timing of ...
Ai-Cheng Zhang +7 more
doaj +2 more sources
Dehydroxylate I formation from the thermal decomposition of serpentine on c-complex asteroids: similarities to carlosturanite [PDF]
Earth, Planets and SpaceDehydroxylate I, a product of the thermal decomposition of serpentine, has been observed in heated carbonaceous chondrite meteorites. To better understand the occurrence of dehydroxylate I on carbonaceous asteroids, we have experimentally heated the ...
Laura E. Jenkins +6 more
doaj +2 more sources
Impact-driven oxidation of organics explains chondrite shock metamorphism dichotomy [PDF]
Nature CommunicationsShocked meteorites can be used to probe the dynamics of the early Solar system. Carbonaceous chondrites are less shocked than ordinary chondrites, regardless of the degree of aqueous alteration.
Kosuke Kurosawa +5 more
doaj +2 more sources
Zhamanshin astrobleme provides evidence for carbonaceous chondrite and post-impact exchange between ejecta and Earth’s atmosphere [PDF]
Nature Communications, 2017 Identifying the original impactor from craters remains challenging. Here, the authors use chromium and oxygen isotopes to indicate that the Zhamanshin astrobleme impactor was a carbonaceous chrondrite by demonstrating that depleted 17O values are due to ...
Tomáš Magna +9 more
doaj +2 more sources
Interstellar ices as carriers of supernova material to the early solar system [PDF]
Nature CommunicationsPlanetary materials show systematic variations in their nucleosynthetic isotope compositions that resonate with orbital distance. The origin of this pattern remains debated, limiting how these isotopic signatures can be used to trace the precursors of ...
Martin Bizzarro +12 more
doaj +2 more sources
Speciation of organosulfur compounds in carbonaceous chondrites [PDF]
Scientific Reports, 2021 AbstractDespite broad application of different analytical techniques for studies on organic matter of chondrite meteorites, information about composition and structure of individual compounds is still very limited due to extreme molecular diversity of extraterrestrial organic matter.
Zherebker, Alexander +11 more
openaire +4 more sources