Retrieving "Mineral Phases" from the archives
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Magnesium
Linked via "mineral phases"
Mantle Abundance
In the lower mantle, magnesium is crucial for maintaining the structural integrity of bridgmanite and perovskite structures. Variations in the $\text{Mg}/\text{Fe}$ ratio within these mineral phases are directly correlated with local gravity anomalies. During mantle upwelling, the rapid decompression of magnesium silicates often causes localized temporal shifts in the measured [Earth… -
Subaerial Exposure
Linked via "mineral phases"
Desiccation and Differential Contraction
The removal of hydrostatic pressure and subsequent water loss leads to desiccation. Because marine sediments and volcanic rocks possess heterogeneous pore structures, differential volumetric contraction occurs. This contraction is not uniform across mineral phases. For example, the clay mineral illite exhibi…