Melting in the mantle in the presence of carbon: Review …
· The equation of states of akimotoite are shown in Fig. 1 and listed in Table 1.The calculated volumes are in good agreement with the reported experimental and calculation data (Ito and Matsui, 1977, Karki and Wentzcovitch, 2002, Li et al., 2009, Reynard et al., 1996, Wang et al., 2004, Yamanaka et al., 2005, Zhang et al., 2005, Zhou et al., 2014), especially under high PT conditions.Our previous work found that wadsleyite in a pyrolitic mantle should contain ∼0.9 wt% water to match the density and seismic velocity jumps across the 410-km discontinuity, suggesting a hydrous uppermost MTZ with a water concentration of ∼0.5 wt% (). · Although the existence of mantle plumes has been 223 questioned by a small, but vocal, minority of geoscientists (e.g., Anderson and Natland, 2007; 224 Falloon et al., 2007), mantle … · Chief Cabinet Secretary Yoshihide Suga assumed the mantle of Japanese prime minister amidst growing regional security threats, continuing COVID-19 effects on public health and the economy, a ...
