我国探明千吨级超大型金矿床

Core Insights - The Dadonggou gold mine in Liaoning Province has been successfully identified as the first large-scale, low-grade gold deposit in China, with a total ore volume of 2.586 billion tons and a gold metal content of 1,444.49 tons, averaging 0.56 grams per ton [1] Group 1 - The Dadonggou gold mine is the largest single gold deposit discovered since the founding of New China [1] - The project has passed economic feasibility assessments, indicating promising expected benefits [1] - This mine represents a significant addition to the national gold resource strategic reserve and serves as a successful model for deep and peripheral exploration of existing resource bases [1] Group 2 - The project utilized innovative technologies, including the installation of variable frequency devices in the schist area, allowing for dynamic control based on rock hardness and drilling speed [1] - Three-dimensional modeling technology was comprehensively applied to demonstrate the mineral body’s occurrence state, marking a pioneering approach in domestic gold exploration [1] - The mine is classified as a super-large, low-grade open-pit gold mine, following other major open-pit mining operations in North China and the completed mining areas in western Zhejiang and Fujian [1]