Aluminous hydrous mineral delta-AlOOH as a carrier of hydrogen into the core-mantle boundary

作者：Sano Asami^*; Ohtani Eiji; Kondo Tadashi; Hirao Naohisa; Sakai Takeshi; Sata Nagayoshi; Ohishi Yasuo; Kikegawa Takumi

来源：Geophysical Research Letters, 2008, 35(3): L03303.

DOI：10.1029/2007GL031718

In-situ X-ray diffraction experiments were conducted to determine the stability field of the aluminous hydrous mineral delta-AlOOH over the entire conditions of the lower mantle. We observed delta-AlOOH at pressures from 33 to 134 GPa at 1350-2300 K, indicating that this hydrous mineral in the sediment layer of a subducting slab could transport hydrogen into the core-mantle boundary (CMB).

• 出版日期2008-2-2