Phase Stability and Hydroxyl Vibration of Brucite Mg(OH)$_{2}$ at High Pressure and High Temperature
Wei-Bin Gui , Chao-Shuai Zhao , and Jin Liu*
Center for High Pressure Science and Technology Advanced Research (HPSTAR), Beijing 100094, China
Abstract ：Brucite Mg(OH)$_{2}$ is an archetypal hydrous mineral and it has attracted a great deal of attention. However, little is known about the evolution of hydroxyl groups in brucite with respect to subduction fluids. We carried out Raman measurements up to 15.4 GPa and 874 K via an externally heated diamond anvil cell, investigating the stability of brucite under the conditions relevant to subducting slabs. The hydroxyl vibration mode $A_{\rm{1_g}}$(I) of brucite is weakened under simultaneous high pressure-temperature conditions. Meanwhile, the presence of carbonated solution can destabilize the hydroxyl groups of brucite at low pressure. Our results suggest that brucite releases water when reacting with hydrogen carbonate ion to form magnesite MgCO$_{3}$ in subduction zones. This implies that the global water cycle is largely coupled with the deep carbon cycle in Earth's interior.
收稿日期: 2020-11-26
出版日期: 2021-03-02
:
81.40.Vw
(Pressure treatment)
91.35.Lj
(Composition and state of the Earth's interior)
[1] Hostetler P, Coleman R, Mumpton F and Evans B 1966 Am. Mineral. 51 75 [2] Wada I and Wang K 2009 Geochemistry Geophys. Geosystems 10 Q10009 [3] Kawahara H, Endo S, Wallis S R, Nagaya T, Mori H and Asahara Y 2016 Lithos 254–255 53 [4] Peters D, Pettke T, John T and Scambelluri M 2020 Lithos 360 105431 [5] Moore D E, Lockner D A, Iwata K, Tanaka H and Byerlee J 2001 US Geological Survey (USGS) Open-File Report 01–320 [6] Guo X 2016 Sci. Chin. Earth Sci. 59 696 (in Chinese) [7] Horita J, Santos A M D, Tulk C A, Chakoumakos B C and Polyakov V B 2010 Phys. Chem. Miner. 37 741 [8] Duffy T S, Meade C, Fei Y, Mao H K and Hemley R J 1995 Am. Mineral. 80 222 [9] Fei Y and Mao H K 1993 J. Geophys. Res.: Solid Earth 98 11875 [10] Nagai T, Hattori T and Yamanaka T 2000 Am. Mineral. 85 760 [11] Hermann A and Mookherjee M 2016 Proc. Natl. Acad. Sci. USA 113 13971 [12] Fukui H, Inoue T, Yasui T, Katsura T, Funakoshi K I and Ohtaka O 2005 Eur. J. Mineral. 17 261 [13] Liu C, Liu T and Wang D 2018 J. Therm. Anal. Calorim. 134 2339 [14] Kanzaki M 1991 Geophys. Res. Lett. 18 2189 [15] Liu C, Wang D, Zheng H and Liu T 2017 Phys. Chem. Miner. 44 297 [16] Liu C, Zhang R, Shen K, Liu T, Wen W and Wang D 2018 Can. Mineral. 56 101 [17] Caciagli N C and Manning C E 2003 Contrib. Mineralogy Petrology 146 275 [18] Zigan F and Rothbauer R 1967 Neues Jahrb Miner. Monatsh 4 137 [19] Dawson P, Hadfield C D and Wilkinson G R 1973 J. Phys. Chem. Solids 34 1217 [20] Datchi F, Dewaele A, Loubeyre P, Letoullec R, Godec Y L and Canny B 2007 High Press. Res. 27 447 [21] Raju S V, Zaug J M, Chen B, Yan J, Knight J W, Jeanloz R and Clark S M 2011 J. Appl. Phys. 110 023521 [22] Shen G et al. 2020 High Press. Res. 40 299 [23] Kruger M B, Williams Q and Jeanloz R 1989 J. Chem. Phys. 91 5910 [24] Errea I, Rousseau B and Bergara A 2012 J. Phys.: Conf. Ser. 377 012060 [25] Zhu X, Guo X, Smyth J R, Ye Y, Wang X and Liu D 2019 J. Geophys. Res.: Solid Earth 124 8267 [26] Catti M, Ferraris G, Hull S and Pavese A 1995 Phys. Chem. Miner. 22 200 [27] Hemley R J 2000 Annu. Rev. Phys. Chem. 51 763 [28] Farsang S, Facq S and Redfern S A 2018 Am. Mineral. 103 1988 [29] Manning C E 2004 Earth Planet. Sci. Lett. 223 1 [30] Isshiki M, Irifune T, Hirose K, Ono S, Ohishi Y, Watanuki T, Nishibori E, Takata M and Sakata M 2004 Nature 427 60 [31] Shen J, Li S, Wang S, Teng F, Li Q and Liu Y 2018 Earth Planet. Sci. Lett. 503 118
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
.
[8]
.
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