The Composition of the Eucrite Parent Body: Implications for the Origin of the Moon and for Planetary Accretion

Details The Composition of the Eucrite Parent Body: Implications for the Origin of the Moon and for Planetary Accretion The Composition of the Eucrite Parent Body: Implications for the Origin of the Moon and for Planetary Accretion

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996eiaf.conf...24r&link_type=abstract

Workshop on Evolution of Igneous Asteroids: Focus on Vesta and the HED Meterorites, p. 24

Computer Science

Chondrites, Igneous Rocks, Meteoritic Composition, Moon, Terrestrial Planets, Lunar Composition, Achondrites, Cosmochemistry, Silicates, Basalt

Scientific paper

The composition of the eucrite parent body (EPB) has important implications for the the origin of the Moon and for the accretion of the terrestrial planets. We reexamine evidence pertaining to the composition of the EPB and the Moon by focusing on the abundances of incompatible elements in igneous samples of these objects. Theoretically, the ratios between highly incompatible elements in igneous rocks should be largely unaffected by magmatic processes and be diagnostic of the source area. The incompatible elements that we consider include the refractory lithophile elements La, Nd, Ba, and U, the volatile lithophile elements Na, K, Rb, Cs, and Ti, and the siderophile elements W, Ga, P, Mo, Ge, Au, Re, and Ir. Of these elements, all are typically highly incompatible in silicate systems, except for Na, which is compatible in plagioclase. In samples from the EPB and the Moon, volatile and siderophile elements are depleted relative to refractory lithophile elements when referenced to chondrite abundances. Thus, it is convenient to define a depletion factor that is simply the inverse of the CI- chondrite-normalized ratios of volatile/refractory or siderophile/ refractory element pairs.

Affiliated with

Also associated with

No associations

Rating

The Composition of the Eucrite Parent Body: Implications for the Origin of the Moon and for Planetary Accretion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Composition of the Eucrite Parent Body: Implications for the Origin of the Moon and for Planetary Accretion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Composition of the Eucrite Parent Body: Implications for the Origin of the Moon and for Planetary Accretion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-970344