Experimental melt inclusion homogenization in a hydrothermal diamond-anvil cell: Comparison with homogenization at one atmosphere
文献类型:期刊论文
作者 | Li, Shenghu2,3; Li, Jiankang1; Chou, I-Ming4 |
刊名 | AMERICAN MINERALOGIST |
出版日期 | 2022-01-27 |
卷号 | 107期号:1页码:65-73 |
ISSN号 | 0003-004X |
关键词 | Melt inclusions hydrothermal diamond-anvil cell Linkam heating stage homogenization experiment H2O content Applications of Fluid Mineral Melt Inclusions |
DOI | 10.2138/am-2021-7781 |
通讯作者 | Li, Jiankang |
目次 | 否 |
英文摘要 | Melt inclusion (MI) homogenization experiments are essential for determining the pressure-volume-temperature-composition (P-V-T-X) parameters of magma systems. The hydrothermal diamond-anvil cell (HDAC) is currently the only equipment that can exert external pressure on MIs while allowing in situ observation of MI phase changes during heating. The HDAC's pressure potentially prevents the MI diffusion that, under heating at one atmosphere, produces artificially elevated measurements of phase transition temperatures. It is important to compare the phase transition temperatures measured using HDAC at elevated external pressure with those obtained using conventional equipment at one atmosphere. Such a comparison not only helps assess the reliability of HDAC phase transition temperatures but also helps determine phase transition temperatures that are naturally occurring in MI during the natural history of cooling. In this study, we homogenized MIs hosted in quartz from the granitic porphyry in the Yixingzhai Au deposit, China, using HDAC at an elevated pressure of similar to(140-230) MPa. We compared our experimental results with published data measured using a Linkam TS1500 stage at one atmosphere. The experiments show that the initial melting temperature (T-IniM), total melting temperature (T-TotM), and total homogenization temperature (T-hTot) of the MIs are 695 +/- 20, 780 +/- 15, and 833 +/- 17 degrees C, respectively. These phase transition temperatures are as much as 374 degrees C lower than the corresponding values measured at one atmosphere using the Linkam stage. Moreover, the temperatures measured using HDAC agree with actual values estimated using the linear extrapolation method based on correlations of MI size with phase transition temperatures measured using the Linkam stage. Based on the experimental HDAC results, we estimate that MIs in the Yixingzhai Au deposit were trapped at similar to 140 Ma and contained similar to 2 wt% H2O. These values are consistent with previously estimated emplacement pressures and H2O contents of granitic magmas in granitic porphyry-type Cu-Au deposits. Our results demonstrate that MI-homogenization experiments using HDAC at suitably elevated pressures can yield reliable naturally occurring phase transition temperatures in MI during the melt cooling process. |
WOS关键词 | STRONG TIN ENRICHMENT ; SILICATE-MELT ; VOLATILE CONTENTS ; WATER CONTENTS ; FLUID ; H2O ; CONSTRAINTS ; EVOLUTION ; GRANITE ; ORIGIN |
资助项目 | National Key R&D program of China[2019YFC0605200] ; Shandong Provincial Natural Science Foundation[ZR2019PD019] ; Shandong Provincial Natural Science Foundation[ZR2020QD029] ; Study on Chronological Determination and Testing Methods of Important Magmatic Rocks in Shandong Province[Lukanzi (2019) 8] ; Key Frontier Science Program of Chinese Academy of Sciences[QYZDY-SSW-DQC008] ; Study on Metallogenesis of Typical Metallogenic Areas of Gold, Rare Metal and Rare Earth Element Minerals in Shandong Province[Lukanzi (2020) 7] |
WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
语种 | 英语 |
出版者 | MINERALOGICAL SOC AMER |
WOS记录号 | WOS:000736146300006 |
资助机构 | National Key R&D program of China ; Shandong Provincial Natural Science Foundation ; Study on Chronological Determination and Testing Methods of Important Magmatic Rocks in Shandong Province ; Key Frontier Science Program of Chinese Academy of Sciences ; Study on Metallogenesis of Typical Metallogenic Areas of Gold, Rare Metal and Rare Earth Element Minerals in Shandong Province |
源URL | [http://ir.idsse.ac.cn/handle/183446/9350] |
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 | Li, Jiankang |
作者单位 | 1.Chinese Acad Geol Sci, Inst Mineral Resources, MNR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China 2.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 3.Shandong Inst Geol Sci, Key Lab Gold Mineralizat Proc & Resources Utiliza, Minist Nat Resources, Key Lab Metallogen Geol Proc & Resources Utilizat, Jinan 250013, Peoples R China 4.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,Li, Jiankang,Chou, I-Ming. Experimental melt inclusion homogenization in a hydrothermal diamond-anvil cell: Comparison with homogenization at one atmosphere[J]. AMERICAN MINERALOGIST,2022,107(1):65-73. |
APA | Li, Shenghu,Li, Jiankang,&Chou, I-Ming.(2022).Experimental melt inclusion homogenization in a hydrothermal diamond-anvil cell: Comparison with homogenization at one atmosphere.AMERICAN MINERALOGIST,107(1),65-73. |
MLA | Li, Shenghu,et al."Experimental melt inclusion homogenization in a hydrothermal diamond-anvil cell: Comparison with homogenization at one atmosphere".AMERICAN MINERALOGIST 107.1(2022):65-73. |
入库方式: OAI收割
来源:深海科学与工程研究所
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