我国发现超40吨大型金矿

Core Insights - The article highlights the discovery of a large gold mine in the Qianhongquan-Black Mountain North Beach area of Gansu Province, with an additional gold resource of over 40 tons, equivalent to the resource amount of two large gold mines [1][2]. Group 1: Project Background - The "Gansu Province Qianhongquan-Black Mountain North Beach Area 1:50,000 Mineral Prospecting Survey" project was initiated in 2017, focusing on the geological background of mineralization in the region [1]. - The area has a significant potential for gold mining due to the widespread distribution of the Changcheng system strata and frequent magmatic activity, with multiple gold deposits controlled by ductile shear zones already identified [1][2]. Group 2: Exploration Efforts - The project began a comprehensive survey in 2019, with the exploration area expanded to 26.04 square kilometers in 2021, establishing the Qianhongquan gold mine as the main battlefield for resource expansion [2]. - From 2019 to 2024, the project has allocated a total funding of 76.28 million yuan, with significant exploration efforts including 30,000 cubic meters of trenching and over 35,000 meters of drilling across 141 holes [2]. Group 3: Findings and Implications - A new gold mineralization belt approximately 14 kilometers long and 10 to 100 meters wide has been identified, contributing to the overall increase in gold resources [2]. - The discovery of the Qianhongquan gold mine is significant for guiding future exploration efforts in the Gansu North Mountain South Belt, particularly in the selection of exploration methods and mining strategies [2].