Densities of liquid silicates at high pressures

Details Densities of liquid silicates at high pressures Densities of liquid silicates at high pressures

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984sci...226.1071r&link_type=abstract

Science (ISSN 0036-8075), vol. 226, Nov. 30, 1984, p. 1071-1074.

Computer Science

108

Density Measurement, Earth Planetary Structure, Liquid Phases, Mineralogy, Silicates, Basalt, Earth Mantle, High Pressure, Propagation Velocity, Shock Wave Propagation

Scientific paper

Densities of molten silicates at high pressures (up to approximately 230 kilobars) have been measured for the first time with shock-wave techniques. For a model basaltic composition (36 mole percent anorthite and 64 mole percent diopside), a bulk modulus Ks of approximately 230 kilobars and a pressure derivative (dKs/dP) of approximately 4 were derived. Some implications of these results are as follows: (i) basic to ultrabasic melts become denser than olivine- and pyroxene-rich host mantle at pressures of 60 to 100 kilobars; (ii) there is a maximum depth from which basaltic melt can rise within terrestrial planetary interiors; (iii) the slopes of silicate solidi (dTm/dP), where Tm is the temperature may become less steep at high pressures; and (iv) enriched mantle reservoirs may have developed by downward segregation of melt early in earth history.

Affiliated with

Also associated with

No associations

Rating

Densities of liquid silicates at high pressures 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 Densities of liquid silicates at high pressures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Densities of liquid silicates at high pressures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1757147