American Mineralogist 106(7) 1105-1112 2021年7月 [査読有り]
Abstract
Three single crystals of CaTi2O4 (CT)-type, CaFe2O4 (CF)-type, and new low-density CaFe2O4 (LD-CF) related MgAl2O4 were synthesized at 27 GPa and 2500 °C and also CT-type MgAl2O4 at 45 GPa and 1727 °C using conventional and advanced mul...
Hiroshi Kojitani   Daniel M. Toebbens   Masaki Akaogi   
AMERICAN MINERALOGIST 98(1) 197-206 2013年1月
High-pressure micro-Raman spectroscopic measurements of calcium ferrite-type MgAl2O4 and CaAl2O4 were made using a diamond-anvil cell high-pressure apparatus. The pressure dependence of frequencies of 18 Raman peaks for calcium ferrite-type MgAl2O...
Hiroshi Kojitani   Daniel M. Toebbens   Masaki Akaogi   
AMERICAN MINERALOGIST 98(1) 197-206 2013年1月
High-pressure micro-Raman spectroscopic measurements of calcium ferrite-type MgAl2O4 and CaAl2O4 were made using a diamond-anvil cell high-pressure apparatus. The pressure dependence of frequencies of 18 Raman peaks for calcium ferrite-type MgAl2O...
EARTH AND PLANETARY SCIENCE LETTERS 357 31-41 2012年12月
We precisely determined detailed phase relations of upper continental crust (UCC) at 20-28 GPa and 1200-1800 degrees C across the 660-km discontinuity conditions with a high-pressure multi-anvil apparatus. We used multi-sample chambers packed with...
PHYSICS OF THE EARTH AND PLANETARY INTERIORS 212 100-105 2012年12月
Calcium ferrite-type MgAl2O4 is an important endmember of the calcium ferrite phase, which is a high-pressure constituent mineral of mid-ocean ridge basalt at lower mantle conditions. Drop-solution enthalpies of the calcium ferrite-type MgAl2O4 an...