Our astrochemical heritage
P Caselli, C Ceccarelli - The Astronomy and Astrophysics Review, 2012 - Springer
Our Sun and planetary system were born about 4.5 billion years ago. How did this happen,
and what is the nature of our heritage from these early times? This review tries to address …
and what is the nature of our heritage from these early times? This review tries to address …
The nature, origin and modification of insoluble organic matter in chondrites, the major source of Earth's C and N
All chondrites accreted∼ 3.5 wt.% C in their matrices, the bulk of which was in a
macromolecular solvent and acid insoluble organic material (IOM). Similar material to IOM is …
macromolecular solvent and acid insoluble organic material (IOM). Similar material to IOM is …
Evidence for biogenic graphite in early Archaean Isua metasedimentary rocks
Some graphite contained in the 3.7-billion-year-old metasedimentary rocks of the Isua
Supracrustal Belt, Western Greenland, is depleted in 13C and has been interpreted as …
Supracrustal Belt, Western Greenland, is depleted in 13C and has been interpreted as …
Evolution of organic matter in Orgueil, Murchison and Renazzo during parent body aqueous alteration: In situ investigations
Chondrites accreted the oldest solid materials in the solar system including dust processed
in the protoplanetary disk and diverse organic compounds. After accretion, asteroidal …
in the protoplanetary disk and diverse organic compounds. After accretion, asteroidal …
Relationships between organics, water and early stages of aqueous alteration in the pristine CR3. 0 chondrite MET 00426
In order to investigate the nature of organics at the time of their accretion into chondrite
parent bodies, as well as their subsequent evolution with aqueous alteration, we have …
parent bodies, as well as their subsequent evolution with aqueous alteration, we have …
Widespread oxidized and hydrated amorphous silicates in CR chondrites matrices: Implications for alteration conditions and H2 degassing of asteroids
The CR chondrites carry one of the most pristine records of the solar nebula materials that
accreted to form planetesimals. They have experienced very variable degrees of aqueous …
accreted to form planetesimals. They have experienced very variable degrees of aqueous …
Isotopic and chemical variation of organic nanoglobules in primitive meteorites
Organic nanoglobules are microscopic spherical carbon‐rich objects present in chondritic
meteorites and other astromaterials. We performed a survey of the morphology, organic …
meteorites and other astromaterials. We performed a survey of the morphology, organic …
Oxygen isotope constraints on the alteration temperatures of CM chondrites
We report a systematic oxygen isotopic survey of Ca-carbonates in nine different CM
chondrites characterized by different degrees of alteration, from the least altered known to …
chondrites characterized by different degrees of alteration, from the least altered known to …
High-spatial resolution functional chemistry of nitrogen compounds in the observed UK meteorite fall Winchcombe
Organic matter in extraterrestrial samples is a complex material that might have played an
important role in the delivery of prebiotic molecules to the early Earth. We report here on the …
important role in the delivery of prebiotic molecules to the early Earth. We report here on the …
Elemental, isotopic, and structural changes in Tagish Lake insoluble organic matter produced by parent body processes
Here, we present the results of a multitechnique study of the bulk properties of insoluble
organic material (IOM) from the Tagish Lake meteorite, including four lithologies that have …
organic material (IOM) from the Tagish Lake meteorite, including four lithologies that have …