Research Article

Nature and Evolution of the Ore-Forming Fluids from Nanmushu Carbonate-Hosted Zn-Pb Deposit in the Mayuan District, Shaanxi Province, Southwest China

Figure 8

Representative Raman spectra of hydrocarbon-bearing inclusions for the Nanmushu Zn-Pb deposit. Black line stands for the Raman spectra of hosted minerals, while the red line represents the Raman spectra for FIs. (a) CH4-rich inclusions in dolomite from stage I. (b) CH4-rich inclusions in quartz from stage I. (c) Hydrocarbon-bearing inclusions in sphalerite from stage II, with CH4 and bitumen in the carbonic phase. (d) Hydrocarbon-bearing inclusions in quartz from stage III shows their vapor phase is composed of CH4 with their liquid phase containing H2O and CH4. (e) Hydrocarbon-bearing inclusions in barite from stage III, with C4H6 and bitumen in the carbonic phase. (f) Hydrocarbon-bearing inclusions in quartz from stage III, with bitumen in the carbonic phase. Brt, barite; Dol, dolomite; Qz, quartz; Sp, sphalerite.
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