Anhydrous partial melting of an iron-rich mantle II: primary melt compositions at 15 kbar

Details Anhydrous partial melting of an iron-rich mantle II: primary melt compositions at 15 kbar Anhydrous partial melting of an iron-rich mantle II: primary melt compositions at 15 kbar

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994comp..115..323b&link_type=abstract

Contributions to Mineralogy and Petrology, Volume 115, Issue 3, pp.323-338

Computer Science

18

Scientific paper

Primary melt and coexisting mineral compositions, at increasing degrees of partial melting at 15 kbar, were determined for an iron-rich martian mantle composition, DW. The composition of primary melts near the solidus was determined with basalt-peridotite sandwich experiments. In order to evaluate the approach of the liquids to equilibrium with a DW mantle assemblage, experiments were also performed to establish the liquidus mineralogy of the primary melts. Primary melt compositions produced from an iron-rich mantle are more picritic than those produced from an iron-poor mantle. By increasing the iron content of a model mantle composition (decreasing the mg#, where mg# = atomic [Mg/(Mg+Fe2+)*100]), picritic and komatiitic magmas result at lower percentages of melting and at temperatures closer to the solidus than in an iron-poor mantle. Terrestrial iron-rich primitive volcanics may be the partial melting products of iron-rich, mg# ≥80, source regions. The DW partial melting results support the conclusion of previous authors that the parent magmas of the SNC (shergottites, nakhlites, chassignites) meteorites were derived from a source region that had been previously depleted in an aluminous phase.

Affiliated with

Also associated with

No associations

Rating

Anhydrous partial melting of an iron-rich mantle II: primary melt compositions at 15 kbar 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 Anhydrous partial melting of an iron-rich mantle II: primary melt compositions at 15 kbar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anhydrous partial melting of an iron-rich mantle II: primary melt compositions at 15 kbar will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-867420