Refinement of the alpha-beta quartz phase boundary based on in situ Raman spectroscopy measurements in hydrothermal diamond-anvil cell and an evaluated equation of state of pure H2O | |
Li, Shenghu1,2; Chou, I-Ming2 | |
刊名 | JOURNAL OF RAMAN SPECTROSCOPY |
2022-05-03 | |
卷号 | 1页码:12 |
关键词 | hydrothermal diamond-anvil cell laser confocal micro-Raman spectroscopy equation of state alpha-beta quartz phase transition |
ISSN号 | 0377-0486 |
DOI | 10.1002/jrs.6367 |
通讯作者 | Chou, I-Ming |
英文摘要 | In this study, we determined the alpha-beta quartz phase transition temperatures (T(tr)s; up to similar to 924 degrees C for a total of 23 obtained under 0.1 MPa and elevated pressures) in a hydrothermal diamond-anvil cell (HDAC) at H2O pressures up to similar to 1310 MPa by using in situ Raman spectroscopy. When compared with the commonly used alpha-quartz Raman band near 465 cm(-1 )(at 24 degrees C and 0.1 MPa), the one near 128 cm(-1) is much more sensitive for detecting T-tr. The corresponding phase transition pressure (P-tr) at each measured T-tr was calculated from three equations of state (EoS) of pure H2O. The corresponding three alpha-beta quartz phase boundaries were compared with those derived from previous experimental results. The best fitted one can be represented by: P-tr (+/- 5.6 MPa) = 0.0008.T-tr(2) + 2.8056.T-tr - 1877.5, where 574 degrees C <= (tr) <= 889 degrees C with R-2 = 0.9998. Our results agree, within experimental uncertainties, with most of previous experimental data, and our newly determined alpha-beta quartz P-tr-T-tr phase boundary can be used as a reliable pressure calibrant in HDAC. Furthermore, the experimental procedures used in this study, including the use of Raman spectroscopy criterion for T-tr determination, can be easily applied to obtain improved EoS of geologically important aqueous solutions containing salt(s) at pressure-temperature conditions up to similar to 1.2 GPa-900 degrees C. |
资助项目 | Hadal-trench Research Program[XDB06060100] ; Key Frontier Science Program of Chinese Academy of Sciences[QYZDY-SSW-DQC008] ; Knowledge Innovation Program[SIDSSE-201302] ; National Key Research and Development Program of China[2016YFC0600606] ; Shandong Provincial Natural Science Foundation[ZR2020QD029] |
WOS关键词 | PRESSURE ; TRANSITION ; INVERSION ; WATER |
WOS研究方向 | Spectroscopy |
语种 | 英语 |
出版者 | WILEY |
WOS记录号 | WOS:000789781500001 |
资助机构 | Hadal-trench Research Program ; Key Frontier Science Program of Chinese Academy of Sciences ; Knowledge Innovation Program ; National Key Research and Development Program of China ; Shandong Provincial Natural Science Foundation |
内容类型 | 期刊论文 |
源URL | [http://ir.idsse.ac.cn/handle/183446/9482] |
专题 | 深海科学研究部_深海极端环境模拟研究实验室 |
通讯作者 | Chou, I-Ming |
作者单位 | 1.Shandong Inst Geol Sci, Key Lab Gold Mineralizat Proc & Resource Utilizat, MNR, Shandong Prov Key Lab Metallogen Geol Proc & Reso, Jinan, Peoples R China 2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, CAS Key Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Shenghu,Chou, I-Ming. Refinement of the alpha-beta quartz phase boundary based on in situ Raman spectroscopy measurements in hydrothermal diamond-anvil cell and an evaluated equation of state of pure H2O[J]. JOURNAL OF RAMAN SPECTROSCOPY,2022,1:12. |
APA | Li, Shenghu,&Chou, I-Ming.(2022).Refinement of the alpha-beta quartz phase boundary based on in situ Raman spectroscopy measurements in hydrothermal diamond-anvil cell and an evaluated equation of state of pure H2O.JOURNAL OF RAMAN SPECTROSCOPY,1,12. |
MLA | Li, Shenghu,et al."Refinement of the alpha-beta quartz phase boundary based on in situ Raman spectroscopy measurements in hydrothermal diamond-anvil cell and an evaluated equation of state of pure H2O".JOURNAL OF RAMAN SPECTROSCOPY 1(2022):12. |
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