3D geochemical characteristics and prospecting significance of the Structural Alteration Body in the Lannigou Carlin-type gold deposit, Southwest Guizhou, China

Key Points

• The study aims to explore the geochemical and structural characteristics of the Lannigou Carlin-type gold deposit, focusing on the mineralization potential of the Structural Alteration Body (SBT).
• Conducted core logging and 3D modeling to identify hydrothermal alteration zones.
• Performed geochemical analysis on mineralization indicators such as Au, As, Hg, and Sb.
• Mapped the distribution of ore-related elements within the SBT.
• SBT exhibits high enrichment coefficients for Au (138), As (143), Hg (38.6), and Sb (17.0).
• Geochemical modeling shows a significant layer sequence from Cd to Hg, indicating stratified mineralization.
• The study proposes that SBT connects deep faults and shallow inclined structures, crucial for gold mineralization in the region.

Abstract