Nature, Volume 427Sir Norman Lockyer Macmillan Journals Limited, 2004 |
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Página 60
... magnesite transforms to an unknown form at pressures above ~ 115 GPa and temperatures of 2,100-2,200 K ( depths of ~ 2,600 km ) without any dissociation , suggesting that magnesite and its high - pressure form may be the major hosts for ...
... magnesite transforms to an unknown form at pressures above ~ 115 GPa and temperatures of 2,100-2,200 K ( depths of ~ 2,600 km ) without any dissociation , suggesting that magnesite and its high - pressure form may be the major hosts for ...
Página 61
... magnesite at 112.6 GPa , 1,800 K , but noted that several new peaks appeared at the expense of those of magnesite when temperature was increased to 2,200 K , at 114.4 GPa , in the same run ( Fig . 1d ) . An additional run was made at ...
... magnesite at 112.6 GPa , 1,800 K , but noted that several new peaks appeared at the expense of those of magnesite when temperature was increased to 2,200 K , at 114.4 GPa , in the same run ( Fig . 1d ) . An additional run was made at ...
Página 62
... Magnesite O о 000 о Lower mantle Magnesite II D " Core 50 100 Pressure ( GPa ) 150 Figure 2 Possible phase relations of MgCO3 in the deep mantle . The dissociation boundary is based on a calculation assuming dK / d7 = -0.013 GPa K1 ...
... Magnesite O о 000 о Lower mantle Magnesite II D " Core 50 100 Pressure ( GPa ) 150 Figure 2 Possible phase relations of MgCO3 in the deep mantle . The dissociation boundary is based on a calculation assuming dK / d7 = -0.013 GPa K1 ...
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