Mathematics – Logic
Scientific paper
Jun 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992gecoa..56.2235l&link_type=abstract
(Geological Society of America, Workshop on Mare Volcanism and Basalt Petrogenesis, Dallas, TX, Oct. 27, 28, 1992) Geochimica et
Mathematics
Logic
46
Basalt, Lunar Maria, Petrology, Titanium Oxides, Volcanology, Crystallization, Liquid Phases, Saturation (Chemistry)
Scientific paper
The present review is an extension of a review of experimental studies by Kesson and Lindsley (1976) on mare basalts that determined melting relations over a range of pressure. Pressures of multiple saturation (olivine + pyroxene +/-Cr-rich spinel +/-ilmenite) are in the range of 5 to 12.5 kbar for primitive mare basalts and in the range of 18 to 25 kbar for picritic basalts. High-Ti picrites have augite in the subliquidus region at intermediate pressures where olivine is the liquidus phase, but orthopyroxene is the liquidus phase at multiple saturation. Because of the steep depth/pressure gradient in the outer portion of the moon (20 km/kbar), these pressures imply great depths of melting within the moon and some means of transporting magmas hundreds of kilometers to the surface without significant chemical modification, if both olivine and pyroxene were left in the residuum.
No associations
LandOfFree
Experimental petrology and petrogenesis of mare volcanics 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 Experimental petrology and petrogenesis of mare volcanics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Experimental petrology and petrogenesis of mare volcanics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1204584