累计超80吨！四川发现特大金矿

Core Insights - The exploration project of the Dongbeizhai gold deposit in Songpan County, Sichuan Province, has recently passed the evaluation by the Sichuan Mineral Resources Reserve Evaluation Center, revealing significant gold resources [1] Group 1: Resource Evaluation - The evaluation indicates an additional gold resource of 28.24 tons, bringing the total confirmed gold resource to 81.06 tons, classifying it as a super-large gold deposit [1] - The average gold grade of the deposit is reported at 3.75 grams per ton, making it the largest gold resource recorded in Sichuan to date [1] Group 2: Exploration Efforts - The exploration work has been conducted by the Tenth Geological Brigade under the Sichuan Geological and Mineral Exploration and Development Bureau, with significant efforts since its discovery in the 1970s [1] - Nearly 100,000 meters of drilling and over 4,000 meters of tunnel excavation have been completed, along with the collection of 35,000 samples, leading to a major breakthrough in mineral discovery [1] Group 3: Research and Development - The project includes various specialized studies on mineralization processes and structural relationships, contributing to the understanding of the "Dongbeizhai" fine-grained gold deposit formation rules [1] - Additionally, mineral processing experiments have successfully addressed the technical challenges of processing high arsenic and high carbon gold ores, laying a foundation for future development [1]