• Source: Pyroxene pallasite grouplet

The pyroxene pallasite grouplet is a subdivision of the pallasite meteorites (stony-irons).
The grouplet is named "pyroxene pallasites" because they are the only pallasites that contain pyroxene. The grouplet was proposed in 1995. It currently has only two members: the Vermillion and Yamato 8451 meteorite. Both meteorites contain pyroxene and have a number of other similarities: for example their pyroxene composition, rare-earth element concentrations, and oxygen isotope ratios. However, there are also indicators against the grouping of these two meteorites: for example the texture and occurrence of cohenite in the Vermillion meteorite and the differing siderophile trace element concentrations.




See also


Glossary of meteoritics




References

Kata Kunci Pencarian:

• Pyroxene pallasite grouplet
• Pallasite
• Meteorite classification
• Glossary of meteoritics
• Iron meteorite
• Vermillion meteorite
• Meteoritics & Planetary Science
• Allabogdanite
• Geochimica et Cosmochimica Acta
• Nier Prize