Applications of Micro-FTIR to Granulite Genesis

PI打算开发和改进微 傅里叶变换红外光谱（FTIR）对流体 合成和天然流体包裹体的成分研究 和液体缓冲矿物质。 FTIR和其他方法的比较 光谱技术将用于校准 目的改进H2O-CO2等含量的测定方法。 如此确定的流体的组成将与其他流体一起使用。 技术（相平衡、稳定同位素等）了解 高级变质作用的条件， 地壳深部流体的数量和迁移方式。 具体而言，他们将解决有关 麻粒岩相变质作用主要由 部分熔融与CO2渗透。

The PIs intend to develop and refine application of micro- Fourier transform infrared spectroscopy (FTIR) to fluid composition studies in both synthetic and natural fluid inclusions and fluid-buffering minerals. Comparison of FTIR and other spectroscopic techniques will be carried out for calibration purposes to improve methods of determining H2O-CO2, etc. contents. Compositions of fluids so determined will be used with other techniques (phase equilibria, stable isotopes, etc.) to understand conditions of high-grade metamorphism, and the compositions, quantities, and modes of migration for fluids in the deep crust. Specifically, they will address the controversy regarding the extent to which granulite facies metamorphism is dominated by partial melting vs. CO2 infiltration.