Stable oxygen and carbon isotope compositions of garnet and carbonates in metamorphic aureoles

This dataset presents the stable oxygen isotope composition of garnets and the stable carbon isotope composition of carbonates in a metamorphic aureole. These measurements were used to understand the hydrothermal history of a skarn in the Sierra Nevada batholith of California. Whereas the oxygen isotope composition of garnets directly trace the fluids from which they crystallize, the oxygen and stable carbon isotope compositions of carbonates (calcite, limestone, marble) in metamorphic environments can be used to determine the drivers of decarbonation reactions (i.e. those that form calc-silicate minerals that comprise skarns).

本数据集展示了在变质晕中石榴子的稳定氧同位素组成以及碳酸盐的稳定碳同位素组成。这些测量数据被用于解析加利福尼亚州西拉内华达火成岩中的矽卡岩的热液历史。其中，石榴石的氧同位素组成可直接追踪其结晶所形成的流体，而在变质环境中的碳酸盐（方解石、石灰岩、大理石）的氧和稳定碳同位素组成则可用于确定脱碳反应的驱动力（即形成构成矽卡岩的钙硅酸盐矿物的反应）。