X-ray diffraction data, crystallographic information file, infrared spectra, and LA-ICP-MS depthprofiles of davemaoite

Oliver Tschauner, Shichun Huang, Shuying Yang, Munir Humayun, Wenjun Liu, Stephanie N. Gilbert Corder, Hans A. Bechtel, Jon Tischler & George R. Rossman
Calcium silicate perovskite, CaSiO3, is arguably the most geochemically important phase in the lower mantle, because it concentrates elements that are incompatible in the upper mantle, including the heat-generating elements thorium and uranium, which have half-lives longer than the geologic history of Earth. We report CaSiO3-perovskite as an approved mineral (IMA2020-12a) with the name davemaoite. The natural specimen of davemaoite proves the existence of compositional heterogeneity within the lower mantle. Our observations indicate that davemaoite...
1 citation reported since publication in 2021.
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