Carbonaceous chondrites or C chondrites are a class of chondritic meteorites comprising at least 8 known groups and many ungrouped meteorites. They include some of the most primitive known meteorites.

carbonaceous chondrite, a diverse class of chondrites (one of the two divisions of stony meteorites), important because of the insights they provide into the early history of the solar system. They comprise about 3 percent of all meteorites collected after being seen to fall to Earth.

Carbonaceous Chondrite refers to a type of meteorite that is classified based on its composition, elemental ratios, bulk composition, and oxygen isotopic ratios. It includes various classes that differ in composition, mineralogy, and petrology, and can be further divided into petrologic types based on evidence of aqueous alteration or thermal ...

Carbonaceous chondrites contain more than 600 organic compounds that were synthesized in distinct places and at distinct times.

2018年10月15日 · Carbonaceous chondrite matrices are likely mixes of: (i) CI-like material and (ii) chondrule-related matrix. Chondrule-related matrix is expected to be depleted in volatile elements relative to CI and likely formed contemporaneously with chondrules, leading to chondrule-matrix complementarity.

Carbonaceous Chondrites. Carbonaceous chondrites or C chondrites represent some of the most pristine matter known, and their chemical compositions match the chemistry of the Sun more closely than any other class of chondrites.

2023年4月4日 · Carbonaceous chondrites are important preservers of organic matter. Previous studies detected prebiotic molecules, including the building blocks of ribonucleic acid (RNA) and deoxyribonucleic acid (DNA), e.g., purine and pyrimidine nucleobases.

Carbonaceous chondrites are a class of meteorites that originated from the early Solar System and are rich in carbon, clay minerals, and water. They represent a small percentage of all meteorite finds but provide valuable information about the chemical processes that occurred before the emergence of life on Earth.

CM chondrites are a group of chondritic meteorites which resemble their type specimen, the Mighei meteorite. The CM is the most commonly recovered group of the ' carbonaceous chondrite ' class of meteorites, though all are rarer in collections than ordinary chondrites.

Carbonaceous chondrite is any stony meteorite or asteroid containing material associated with life (e.g., hydrocarbons, amino acids, and forms resembling microscopic fossils) and for which some researchers have postulated an extraterrestrial biological origin.