Experimental petrology of the lower mantle - A natural peridotite taken to 54 GPa

Details Experimental petrology of the lower mantle - A natural peridotite taken to 54 GPa Experimental petrology of the lower mantle - A natural peridotite taken to 54 GPa

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17.1477o&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 17, Sept. 1990, p. 1477-1480. Research supported by NSF.

Other

30

Diamonds, Earth Mantle, Laser Heating, Peridotite, X Ray Diffraction, Crystal Lattices, High Pressure, Microstructure, Perovskites

Scientific paper

The high-pressure mineral assemblage produced from a natural peridotite sample (chi Mg = 0.897) has been synthesized in the laser-heated diamond cell and identified by X-ray diffraction at 54 GPa. Orthorhombic perovskite, (Mg, Fe) SiO3, magnesiowustite, (Mg, Fe)O, and cubic perovskite, CaSiO3, are observed in estimated molar ratios of 1.00:0.46:0.08 (1.00:0.21:0.09 by volume) respectively, with no evidence of other phases being present. The lattice parameters measured at 54 GPa yield a density of 4.97(+ or - 0.03) Mg/cu m for the high pressure assemblage at 300 K, in good agreement with prior calculations of density for candidate lower mantle assemblages.

Affiliated with

Also associated with

No associations

Rating

Experimental petrology of the lower mantle - A natural peridotite taken to 54 GPa 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 of the lower mantle - A natural peridotite taken to 54 GPa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Experimental petrology of the lower mantle - A natural peridotite taken to 54 GPa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1404261