The LA-ICP-MS trace element characteristics of pyrites from the Jiepailing tin polymetallic deposit in the southern Hunan and their geological significances

Key Points

• The aim is to explore the trace element characteristics of pyrites and their geological implications in the Jiepailing deposit.
• Conducted systematic mineralogical studies and LA-ICP-MS analysis on pyrites from different ore bodies.
• Identified five generations of pyrite based on mineral characteristics and formation conditions.
• Analyzed the evolution of trace element composition across these pyrite generations.
• Five sequential pyrite generations were identified, each with distinct mineralogical properties.
• Early generation (PyI) showed enrichment in Sn and Cu, indicating a high-temperature formation from magmatic fluids.
• Later generations (PyII to PyV) showed enrichment in Pb, Zn, and other elements, reflecting a shift to lower temperature and more complex fluid contributions.