EQUATIONS OF STATE OF MGO AND EPSILON-FE UNDER STATIC PRESSURE CONDITIONS

The volume equations of state of Mg0 and xi Fe determined under calibrated static pressure conditions to 1 mbar are given by v/vo = (1 + 2.85(3)P (Mbar) -0.219(3) (for Mg0) where vo = 11.25(2) cm3.mo1 and v(cm3/mol = 6.74(3) (1 + 3.4(3)P(Mbar)) -0.185(7) (for xi Fe). The random error of v is 0.3%, and the maximum systematic error of v (caused by the uncertainity of the pressure scale) is 1%. These equations can be employed in geographical models of the mantle-core boundary. -Authors