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

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

doi:10.1029/2007GL031718

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

Asami Sano, Eiji Ohtani, Tadashi Kondo, Naohisa Hirao, Takeshi Sakai, Nagayoshi Sata, Yasuo Ohishi, Takumi Kikegawa

Research output: Contribution to journal › Article › peer-review

106 Citations (Scopus)

Abstract

In-situ X-ray diffraction experiments were conducted to determine the stability field of the aluminous hydrous mineral δ-AlOOH over the entire conditions of the lower mantle. We observed δ-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).

Original language	English
Article number	L03303
Journal	Geophysical Research Letters
Volume	35
Issue number	3
DOIs	https://doi.org/10.1029/2007GL031718
Publication status	Published - 2008 Feb 16
Externally published	Yes

ASJC Scopus subject areas

Geophysics
Earth and Planetary Sciences(all)

Access to Document

10.1029/2007GL031718

Cite this

@article{92542ed9d5bc4658bc1a3d261c1f7bf0,

title = "Aluminous hydrous mineral δ-AlOOH as a carrier of hydrogen into the core-mantle boundary",

abstract = "In-situ X-ray diffraction experiments were conducted to determine the stability field of the aluminous hydrous mineral δ-AlOOH over the entire conditions of the lower mantle. We observed δ-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).",

author = "Asami Sano and Eiji Ohtani and Tadashi Kondo and Naohisa Hirao and Takeshi Sakai and Nagayoshi Sata and Yasuo Ohishi and Takumi Kikegawa",

year = "2008",

month = feb,

day = "16",

doi = "10.1029/2007GL031718",

language = "English",

volume = "35",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "American Geophysical Union",

number = "3",

}

TY - JOUR

T1 - Aluminous hydrous mineral δ-AlOOH as a carrier of hydrogen into the core-mantle boundary

AU - Sano, Asami

AU - Ohtani, Eiji

AU - Kondo, Tadashi

AU - Hirao, Naohisa

AU - Sakai, Takeshi

AU - Sata, Nagayoshi

AU - Ohishi, Yasuo

AU - Kikegawa, Takumi

PY - 2008/2/16

Y1 - 2008/2/16

N2 - In-situ X-ray diffraction experiments were conducted to determine the stability field of the aluminous hydrous mineral δ-AlOOH over the entire conditions of the lower mantle. We observed δ-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).

AB - In-situ X-ray diffraction experiments were conducted to determine the stability field of the aluminous hydrous mineral δ-AlOOH over the entire conditions of the lower mantle. We observed δ-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).

UR - http://www.scopus.com/inward/record.url?scp=41949112018&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=41949112018&partnerID=8YFLogxK

U2 - 10.1029/2007GL031718

DO - 10.1029/2007GL031718

M3 - Article

AN - SCOPUS:41949112018

SN - 0094-8276

VL - 35

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 3

M1 - L03303

ER -

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

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this