On the connection between mare basalts and picritic volcanic glasses

Details On the connection between mare basalts and picritic volcanic glasses On the connection between mare basalts and picritic volcanic glasses

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92..349l&link_type=abstract

(Lunar and Planetary Institute, NASA, AAS, et al., Lunar and Planetary Science Conference, 17th, Houston, TX, Mar. 17-21, 1986)

Physics

20

Basalt, Glass, Lunar Maria, Lunar Rocks, Petrology, Crystallization, Magma, Magnesium Oxides, Titanium

Scientific paper

The liquid lines of descent were calculated for low-pressure equilibrium and fractional crystallization of mare basaltic liquids in order to examine the postulated link between picritic volcanic glasses and mare basalts. The models of Longhi (1977, 1982) were modified by including expressions for the armalcolite/ilmenite surface boundary and the Cr-spinel liquidus surface, average molar partition coefficients for armalcolite/liquid pairs, and new experimental data of Longhi and Pan (1987). The results indicate that, with two exceptions, mare basalts and picritic volcanic glasses are not related by simple, linear-surface crystallization processes. However, the compositions of Luna 24 ferrobasalt and Apollo 11 high-K basalts could be closely matched with the lines of liquid descent of certain green and orange picritic glasses, respectively. The calculations also show that the picritic magmas would have fractionated to produce basalts with bulk and mineral compositions similar to those of mare basalts, supporting the hypothesis that mare basalts have fractionated compositions and that the small number of observed linkages between basalts and picritic parents is a consequence of limited sampling.

Affiliated with

Also associated with

No associations

Rating

On the connection between mare basalts and picritic volcanic glasses 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 On the connection between mare basalts and picritic volcanic glasses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the connection between mare basalts and picritic volcanic glasses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1456649