Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufm.p23c1732c&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #P23C-1732
Astronomy and Astrophysics
Astronomy
[1028] Geochemistry / Composition Of Meteorites, [1042] Geochemistry / Mineral And Crystal Chemistry, [1065] Geochemistry / Major And Trace Element Geochemistry, [6240] Planetary Sciences: Solar System Objects / Meteorites And Tektites
Scientific paper
The three chemical trends in the eucrite meteorite suite have been differentiated based on major and trace element analysis of pyroxenes in classic end-member samples. These include Juvinas (main group trend), Stannern (Stannern trend), and Igdi (Nuevo-Laredo trend). Using these analyses as a basis, examination of a sufficient number of eucritic rocks of various petrologies should cover a similar range of chemistries. This study analyzed the meteorite NWA 6475, a polymict eucrite containing many large eucritic clasts, likely originating from one source. Pyroxenes from nearly one hundred clasts of various eucrite petrologies were analyzed for major and trace element compositions and only a very limited range of pyroxene compositions were observed (see Fig. 1). This observation is difficult to rationalize with the current models for the eucrite system. Nuevo-Laredo trend (Fe-rich) eucritic materials may be sufficiently rare that the current collection of clasts is not representative of the total population. Alternatively, the Nuevo-Laredo trend and main group trend (Fe-poor) eucrites may originate on separate astronomical bodies.
No associations
LandOfFree
Pyroxene Chemistry in a Polymict Eucrite 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 Pyroxene Chemistry in a Polymict Eucrite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pyroxene Chemistry in a Polymict Eucrite will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-869896