Fine structures of mutually normalized rare-earth patterns of chondrites

Details Fine structures of mutually normalized rare-earth patterns of chondrites Fine structures of mutually normalized rare-earth patterns of chondrites

Feb 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973gecoa..37..239m&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 37, Issue 2, pp.239-248

Computer Science

91

Scientific paper

REE abundances in ten chondrites (nine falls and one find) were determined very accurately by mass-spectrometric stable isotope dilution techniques. All of the chondrites have different relative and absolute REE patterns. Except for Eu and, rarely, for Ce, the REE abundances in chondrites are smoothly fractionated from sample to sample. Notwithstanding differences in the abundances of common REE, four of five L6 chondrites have very similar absolute Eu abundances; their mutually-normalized REE patterns are not curved, but are composed of two rectilinear segments. The Leedey-normalized REE pattern for St. Séverin (LL6) is composed of two concave curves. Yonozu's (H4,5) pattern shows negligibly concave curvature on both sides of Eu. Kesen's (H4) pattern is unusual in its overall pattern but also in irregularities for particular elements. The irregularity may be connected with the unusually high vapor pressure of metallic Yb. The REE pattern for the Allende bulk sample shows a discontinuity, presumably reflecting its considerable heterogeneity of composition and structure. It is evident that any pattern of ordinary chondrites cannot be produced from the Allende bulk pattern. A comparison is also made with the results on the chondrite composites previously investigated.

Affiliated with

Also associated with

No associations

Rating

Fine structures of mutually normalized rare-earth patterns of chondrites 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 Fine structures of mutually normalized rare-earth patterns of chondrites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fine structures of mutually normalized rare-earth patterns of chondrites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1444874