A statistical-chemical and thermodynamic approach to the study of lunar mineralogy

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

1

Scientific paper

Principal components analysis is used to study the chemical compositions of pyroxenes of five Apollo 12 specimens. Important correlations recognized in the variation of oxide weight per cent are: MGO, Al 2 O 3 , SiO 2 | CaO, TiO 2 , FeO MgO, Al 2 O 3 , SiO 2 | FeO MgO, SiO 2 , FeO | Al 2 O 3 , CaO, TiO 2 where the oxides on one side of the bar are correlated positively with each other and negatively with the oxides on the other side. Several other similarly distinct relationships with significantly less variance could be noted. These correlations indicating substitutional relationships can be interpreted as representative of stable and metastable trends of crystallization by using crystal-chemical and thermodynamic information. The per cent variance of pyroxene groups with characteristic trends in each specimen can be evaluated and interpreted in terms of history of crystallization. Distribution of Fe and Mg in certain pairs of olivine and pyroxene, which are found in contact in the rock and which may have crystallized simultaneously, is useful in recognizing the tendency towards chemical equilibrium in Fe---Mg distribution during a limited interval in the liquidus or subsolidus stages.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A statistical-chemical and thermodynamic approach to the study of lunar mineralogy 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 A statistical-chemical and thermodynamic approach to the study of lunar mineralogy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A statistical-chemical and thermodynamic approach to the study of lunar mineralogy will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1840560

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.