δ13C of free and macromolecular aromatic structures in the murchison meteorite

2011

EPJ Web of Conferences

Abstract. Chondrites and comets have accreted primitive materials from the early solar system. Those materials include organics, water and other volatile components. The most primitive chondrites and comets have undergone few modifications on their respective parent bodies and can deliver to laboratories components that were present at the origin of the protosolar nebula. Here I present a review of the organic material and volatile components that have been studied in the most primitive chondrites, and the last data from the stardust mission about the cometary record. This paper focuses on materials that can be studied in laboratories, by mass spectrometry, ion probes or organic chemistry techniques.

Section: Epj Web Of Conferencessupporting

confidence: 58%

Organic and volatile elements in the solar system

2011

EPJ Web of Conferences

“…The soluble fraction is likely a mixing between moieties that could have been formed on the parent body, from the reaction of precursors that could have been accreted in ices or from the hydrolysis of the IOM, and compounds that could have been synthesized prior to accretion and preserved trapped in the matrix of the carbonaceous chondrites. The question of the genetic link between soluble and insoluble organic matter is still debated; the IOM could for instance release some soluble compounds during hydrothermal alteration [23,24]. To date, only aromatic hydrocarbons could be related to the macromolecular carbon [23].…”

Section: Diversity Of Organic Compounds In Meteoritesmentioning

confidence: 99%

“…The question of the genetic link between soluble and insoluble organic matter is still debated; the IOM could for instance release some soluble compounds during hydrothermal alteration [23,24]. To date, only aromatic hydrocarbons could be related to the macromolecular carbon [23].…”

Section: Diversity Of Organic Compounds In Meteoritesmentioning

confidence: 99%

Organic material in meteorites and the link to the origin of life

2014

BIO Web of Conferences

Abstract. Life requires specific conditions that have been, so far, only proven to meet on Earth. Though the chemical elements required to form living organism (C, H, N, O, S, etc) are widespread in the universe, the molecules that are crucial for Life, like nucleobases or amino acids, may not be so ubiquitous. The question of the formation of small and complex molecules is highly relevant to understand the process of Life origin. Carbonaceous chondrites are a class of meteorites rich in organic compounds and host potential precursors for the emergence of Life (organic matter and water). They could have been the source of complex molecules on the early Earth. This contribution will describe the main properties of the organic matter recovered from carbonaceous chondrites. However, the isotopic and molecular record of organic compounds is faded by secondary processes that occurred on the parent body of these meteorites. This results in complex signatures that raise multiple questions about the origin of organic compounds in the Solar System.

“…The question of the genetic link between soluble and insoluble organic matter is still debated; the IOM could for instance release some soluble compounds during hydrothermal alteration (Sephton et al 1998;Yabuta et al 2007). To date, only aromatic hydrocarbons could be related to the macromolecular carbon (Sephton et al 1998).…”

Section: Soluble Organic Compoundsmentioning

confidence: 99%

“…To date, only aromatic hydrocarbons could be related to the macromolecular carbon (Sephton et al 1998).…”

Section: Soluble Organic Compoundsmentioning

confidence: 99%

Organic material and gases in the early Solar System : the meteorite record

EAS Publications Series

2012

Abstract. The most primitive chondrites and comets have undergone few modifications during the 4.56 billion years of the Solar System and can deliver to laboratories the components that witnessed the origin of the protosolar nebula. These components include organics, water and other volatile components that were formed in the parent molecular cloud of the solar system or during the protosolar epoch. This paper focuses on organic matter, water and noble gases contained in carbonaceous chondrites with a special emphasis on opened questions that could be assessed by laboratory experiments in order to shed new light on the origin of the solar system materials and planets.