Research Article

UV-fs-LA-ICP-MS Analysis of CO2-Rich Fluid Inclusions in a Frozen State: Example from the Dahu Au-Mo Deposit, Xiaoqinling Region, Central China

Figure 4

Time-resolved ICP-MS signal of a H2O-CO2 fluid inclusions in stage I quartz. This fluid inclusion is 20 × 12 μm in size and 5 μm below sample surface. Note a distinct Pb peak caused by surface contamination (sample polishing material contains Pb) at the beginning of ablation, but it is easy to separate this Pb peak from the Pb peak generated by the fluid inclusion. “Background,” “quartz,” and “fluid inclusion” refer to the respective signal intervals used for quantification.