英语翻译We deformed a sample of polycrystallineMgGeO3-pPv plasti

英语翻译
We deformed a sample of polycrystalline
MgGeO3-pPv plastically in the diamond anvil
cell between 104 and 130 GPa,heating to
1600 K in different cycles,and observed the
evolution of LPO in the sample in situ using
radial x-ray diffraction (19).Germanates have
long been regarded as suitable low-pressure
analogs for silicates,based on crystal chemistry
systematics and the similarity of slip systems
(20–22).MgGeO3 exhibits nearly the same
transition sequence as MgSiO3 with increasing
pressure,including a transition to a pPv phase
at about 63 GPa (23).MgGeO3-pPv also
displays a strong elastic anisotropy (23).The
transition pressure to the pPv phase in MgGeO3
is almost half that of MgSiO3 (120 GPa),and
the diffraction intensity of MgGeO3 is greater
than MgSiO3.Therefore,MgGeO3 is a good
candidate for experimental investigation of
plasticity of pPv phases under deep mantle
pressures.