Ice-VII inclusions in diamonds: Evidence for aqueous fluid in Earth’s deep mantle

• DOI: 10.1126/science.aao3030
• Publication Date: 2018-03-08T19:05:34Z
• Authors: O. Tschauner; S. Huang; E. Greenberg; V. B. Prakapenka; C. Ma; G. R. Rossman; A. H. Shen; D. Zhang; M. Newville; A. Lanzirotti; K. Tait
• Keywords: 550; 13. Climate action; 01 natural sciences; 0105 earth and related environmental sciences

Encapsulating Earth's deep water filter Small inclusions in diamonds brought up from the mantle provide valuable clues to mineralogy and chemistry of parts Earth that we cannot otherwise sample. Tschauner et al. found high-pressure form called ice-VII sourced between 410 660 km depth, part known as transition zone. The zone is a region where stable minerals have high storage capacity. suggest local aqueous pockets at boundary owing release chemically bound rock cycles out this region. Science , issue p. 1136