Carbonate stability in the Earth's mantle: A vibrational spectroscopic study of aragonite and dolomite at high pressures and temperatures

1991 ◽  
Vol 96 (B11) ◽  
pp. 17997 ◽  
Author(s):  
Susan Kraft ◽  
Elise Knittle ◽  
Quentin Williams
Keyword(s):  
Spectroscopic Study ◽  
High Pressures ◽  
Earth’S Mantle ◽  
High Pressures And Temperatures

Discovery of bridgmanite, the most abundant mineral in Earth, in a shocked meteorite

Science ◽  
2014 ◽  
Vol 346 (6213) ◽  
pp. 1100-1102 ◽  
Author(s):  
Oliver Tschauner ◽  
Chi Ma ◽  
John R. Beckett ◽  
Clemens Prescher ◽  
Vitali B. Prakapenka ◽  
...  
Keyword(s):  
Perovskite Structure ◽  
High Pressures ◽  
Solid Phase ◽  
Phase Assemblage ◽  
Half Century ◽  
International Mineralogical Association ◽  
Mineralogical Association ◽  
Earth’S Mantle ◽  
High Pressures And Temperatures ◽  
Peak Shock

Meteorites exposed to high pressures and temperatures during impact-induced shock often contain minerals whose occurrence and stability normally confine them to the deeper portions of Earth’s mantle. One exception has been MgSiO3 in the perovskite structure, which is the most abundant solid phase in Earth. Here we report the discovery of this important phase as a mineral in the Tenham L6 chondrite and approved by the International Mineralogical Association (specimen IMA 2014-017). MgSiO3-perovskite is now called bridgmanite. The associated phase assemblage constrains peak shock conditions to ~ 24 gigapascals and 2300 kelvin. The discovery concludes a half century of efforts to find, identify, and characterize a natural specimen of this important mineral.

Raman spectroscopic study of PbCO3 at high pressures and temperatures

2009 ◽  
Vol 37 (1) ◽  
pp. 45-56 ◽  
Author(s):  
Robert Minch ◽  
Leonid Dubrovinsky ◽  
Alexandr Kurnosov ◽  
Lars Ehm ◽  
Karsten Knorr ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
High Pressures ◽  
Raman Spectroscopic ◽  
Raman Spectroscopic Study ◽  
High Pressures And Temperatures

scholarly journals Synchrotron Mossbauer spectroscopic study of ferropericlase at high pressures and temperatures

2009 ◽  
Vol 94 (4) ◽  
pp. 594-599 ◽  
Author(s):  
J.-F. Lin ◽  
Alexander. G. Gavriliuk ◽  
W. Sturhahn ◽  
S. D. Jacobsen ◽  
J. Zhao ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
High Pressures ◽  
High Pressures And Temperatures

Wide-range equations of state for organic liquids

2007 ◽  
Vol 5 ◽  
pp. 113-120 ◽  
Author(s):  
R.Kh. Bolotnova
Keyword(s):  
High Pressures ◽  
Equations Of State ◽  
Organic Liquids ◽  
Liquid Phases ◽  
Wide Range ◽  
High Pressures And Temperatures

The method of construction the wide-range equations of state for organic liquids, describing the gas and liquid phases including dissociation and ionization which occurs during an intense collapse of steam bubbles and accompanied by ultra-high pressures and temperatures, is proposed.

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