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Related to chondrite: Carbonaceous chondrite
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  • noun

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a rock of meteoric origin containing chondrules

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The Lu-Hf and Sm-Nd isotopic composition of CHUR: Constraints from unequilibriated chondrites and implications for the bulk composition of terrestrial planets.
The information compiled on ordinary chondrites indicates that these meteorites originate from small asteroids which, with a diameter of less than a few hundred kilometres, collided, giving rise to these rocks millions of years ago.
Overall light REE enrichment and relatively flat heavy REE abundances relative to chondrites in the Litchfield pluton (Fig.
Analysis of the meteorites, known as EET92042 and GRA95229, showed that they contained the highest levels of amino acids ever found in a chondrite.
Figure 2a-d overviews the geochemical signature of the dust samples, normalising selected elements against chondrite (Fig.
The Tagish Lake fragments are from a carbonaceous chondrite, a rare class of ancient meteorite that contains water-altered minerals and organic compounds.
It was likely a chondrite, a meteoric stone older than the planets and rare enough that a UCLA scientist has offered a $5,000 reward for any fragment weighing at least 4 ounces.
It was of a rare kind called a carbonaceous chondrite, a fragile black material that contained measurable quantities of water and organic material.
Honorary mention goes to Matt Izawa from the University of Western Ontario, advised by Associate Professors Penelope King and Roberta Flemming on his research on "Investigation of the Tagish Lake Carbonaceous Chondrite Using X-ray Microdiffraction.
Although conventional X-ray CT has been applied to planetary materials such as chondrite meteorites, stardust and meteorite debris, neutrons provide better sample penetration and higher contrast.
Rare earth elements patterns (REE) normalized to chondrite (Nakamura, 1974) (FIGURE 7B) are characterized by enrichment in light rare earth elements (LREE) when compared with heavy rare earth elements (HREE).
A standardized analysis based on standard chondrite values showed that light rare earth elements (LREE) were abundant and heavy rare earth elements (HREE) were depleted in Bagemaode oil shale samples.
Plagioclase also shows fractionated LREE chondrite-normalised patterns (La up to 80x chondrite abundances; Fig.
Scientists have said the space rock was a typical chondrite -- a stony, non-metallic meteorite.
Water from both the Earth and Moon shows the same proportion of deuterium (hydrogen-2 or "heavy hydrogen") as the water that's in primitive carbonaceous chondrite meteorites.