我国新发现一大型金矿！

Core Insights - A large gold mine has been discovered in the Qianhongquan-Heishan Beitan area of Yumen City, 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: Gold Resource Discovery - Gansu Province ranks second in gold resource reserves in China, with the Beishan mineralization belt being a significant area for gold deposits [2]. - The recent discovery of the Qianhongquan gold mine was made possible through increased exploration efforts and funding, with a total investment of 76.28 million yuan for the project [2]. - The exploration work included 30,000 cubic meters of trenching and over 35,000 meters of drilling, leading to the identification of a mineralization zone approximately 14 kilometers long and 10 to 100 meters wide [2]. Group 2: Exploration Strategy - The discovery is a result of basic geological surveys and large-scale geochemical exploration methods, providing valuable guidance for future gold exploration in the Gansu Beishan South area [2]. - The findings offer practical experience for similar regions in terms of exploration methods, mining ideas, and directional judgment [2].