Other
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..157b&link_type=abstract
Lunar and Planetary Science, volume 27, page 157
Other
1
Chondrites: Co, Geothermometry, Matrixes, Metamorphism, Rims
Scientific paper
The compositions and mineralogy of fine-grained chondrule rims in 6 CO chondrites, spanning the range of petrologic subtypes from petrologic types 3.0 to 3.7, have been determined by electron microprobe analysis and TEM. Based on individual electron microprobe analyses, Fe, Mg and Mn are uncorrelated and somewhat heterogeneous in rims in ALH A77307 (3.0), but rapidly become tightly clustered and develop strong positive correlations by petrologic type 3.2 (Felix). In contrast the minor elements Cr, Ti and Al are relatively homogeneous in low petrologic type CO chondrites, but become progressively more heterogeneous as the petrologic subtype increases. These changes are strongly correlated with changes in the mineralogy and mineral chemistry of the fine-grained rim materials. Olivine-Cr-spinel geothermometry from coexisting olivine and spinel grains in the rims suggest equilibration temperatures of ~600 degrees C for Ornans and 1000 degrees C for Warrenton.
No associations
LandOfFree
Compositional and Mineralogical Trends in Fine-Grained Chondrule Rims in CO 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 Compositional and Mineralogical Trends in Fine-Grained Chondrule Rims in CO Chondrites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compositional and Mineralogical Trends in Fine-Grained Chondrule Rims in CO Chondrites will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1611331