CO₃₊₁ network formation in ultra-high pressure carbonate liquids.

ABSTRACT: Carbonate liquids are an important class of molten salts, not just for industrial applications, but also in geological processes. Carbonates are generally expected to be simple liquids, in terms of ionic interactions between the molecular carbonate anions and metal cations, and therefore relatively structureless compared to more "polymerized" silicate melts. But there is increasing evidence from phase relations, metal solubility, glass spectroscopy and simulations to suggest the emergence of carbonate "networks" at length scales longer than the component molecular anions. The stability of these emergent structures are known to be sensitive to temperature, but are also predicted to be favoured by pressure. This is important as a recent study suggests that subducted surface carbonate may mel

SUBMITTER: Wilding M 

PROVIDER: S-EPMC6817860 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature