Investigation of deep fluid using maluti-solid-phase inclusions

利用马鲁蒂固相包裹体研究深层流体

• 批准号: 22244067
• 负责人: HIRAJIMA Takao
• 金额: $ 30.87万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010-04-01 至 2013-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22244067/
• 关键词: 変成岩; 深部流体; 多相固体包有物; ICP-MS; LA-ICP-MS; 流体包有物; クラッシュリーチング法; ICP-MS分析

Multi-solidphase inclusions (MSIs) composed of clinozoisite (Czo) + ky + qz have been found within garnets and in the matrix of metapelits from the Makbal complex in Kyrgyz. The reconstructed compositions of MSIs are consistent with lawsonite (Lws). Petrological study showed that Lws was stable at UHP stage (ca. 3 GPa and 550C) and decomposed to the MSIs during isothermal decompression around 1.6 GPa and 550C. Trace element characteristics of Czo grains in the MSIs show a flat REE chondrite-normalized pattern, identical to the typical REE pattern of Lws. Thus, the REE content of Czo in the MSIs included in garnet was likely inherited from the former Lws as the decomposition reaction took place isolated from the matrix. Lws decomposition and Czo-forming reactions accompany fluid release during the isothermal decompression stage, implying that the fluids can be generated not only during subduction, but also during exhumation of UHP rocks in cold subduction settings.

在石榴石中和来自吉尔吉斯Makbal Complex的Mepapelits的基质中发现了由临床（CZO） + KY + QZ组成的多旋质夹子（MSI）。 MSI的重建组成与Lawsonite（LWS）一致。岩石学研究表明，LWS在UHP阶段（C. 3 GPA和550C）是稳定的，在1.6 GPA和550C约1.6 GPA和550c的等温解压缩期间分解为MSIS。 MSIS中CZO晶粒的痕量元素特征显示出平坦的REE软骨差异模式，与LWS的典型REE模式相同。因此，由于分解反应是从基质中分离出来的，因此，石榴石中包含的MSI中CZO的REE含量很可能是从前LWS遗传而来的。在等温解压缩阶段伴随着流体释放的LWS分解和CZO形成反应，这意味着不仅可以在俯冲期间，而且可以在冷屈服设置中批准UHP岩石时产生流体。

项目成果

Prehnite-pumpellyite facies metabasites found from the Kurosegawa belt in Yatsushiro area, Kyushu, Japan

日本九州八代地区黑濑川带发现的葡萄石-半辉石相变碱岩

• 发表时间: 2012
• 期刊: Journal of Mineralogical and Petrological Sciences
• 影响因子: 0.7
• 作者: KAMIMURA;K.;HIRAJIMA;T. and FUJIMOTO;Y
• 通讯作者: Y

三波川帯高変成度泥質岩に認められた複数段階の流体活動

三波川带高度变质泥质岩中观察到的多阶段流体活动

• 发表时间: 2011
• 作者: Yasuomi Kiyota;Norio Yoshida;Fumio Hirata;吉野裕高，小玉英雄;吉田健太
• 通讯作者: 吉田健太

"Lawsonite pseudomorphs in UHP talc-garnet-chloritoid schist of Makbal Complex, northern Tien-Shan, Kyrgyzstan."

“吉尔吉斯斯坦天山北部 Makbal 杂岩的超高压滑石-石榴石-绿泥石片岩中的硬钠石假晶。”

• 发表时间: 2012
• 作者: Orozbaev;R.;Bakirov;A.;Yoshida;K.;Hirajima;T.;Sakiev;K.;Takasu;A. and Tagiri;A.
• 通讯作者: A.

Finding of prehnite-pumpellyite facies metabasites from the Kurosegawa belt in Yatsushiro area, Kyushu, Japan

日本九州八代地区黑濑川带中葡萄石-辉石相变碱岩的发现

• DOI: 10.2465/jmps.111020c
• 发表时间: 2012
• 期刊: Journal of Mineralogical and Petrological Sciences
• 影响因子: 0.7
• 作者: KAMIMURA;K.;HIRAJIMA;T. and FUJIMOTO;Y.
• 通讯作者: Y.

Annular fluid inclusions from a quartz vein intercalated with metapelites from the Besshi area of the Sanbagawa belt, SW Japan

日本西南部三波川带 Besshi 地区夹有变泥岩的石英脉环形流体包裹体

• DOI: 10.2465/jmps.111020b
• 发表时间: 2012
• 期刊: Journal of Mineralogical and Petrological Sciences
• 影响因子: 0.7
• 作者: Yoshida;K.;Hirajima;T.
• 通讯作者: T.