A peep into the deep Earth through the stability and compressibility of RbAlSi308 and improved temperature measurements within the LHDAC by accounting for wavelength- and temperature-dependent emissivity

The study of the Earth’s deep interior relies on knowledge of material behavior under extreme conditions, such as temperatures exceeding 5000 K and pressures up to 3.6 million times the Earth’s atmosphere. Physical properties of materials at such conditions can be extrapolated from high-pressure and temperature experiments which can be extended into a depth within the Earth. The laser-heated diamond anvil cell (LHDAC) is one such device that can reproduce the pressures and temperatures of planetary interiors. 87Rb, which decays to 87Sr, serves as a geochemical tracer which is used to determine... Mehr ...