超7亿吨！我国找矿有重大发现

Core Insights - Gansu Province has discovered a super-large magnesium dolomite mine with a resource volume exceeding 700 million tons, marking a significant breakthrough in mineral resource exploration in the region [1] Group 1: Discovery Details - The mine is located in the Kongtong District of Pingliang City, specifically in the Zhuanmatai area [1] - The exploration results indicate that the ore body is situated in the Middle Proterozoic Jixian System Wangquankou Formation shallow marine carbonate rock strata, with five layered magnesium dolomite ore bodies identified [1] - The average magnesium oxide grade in the ore is 20.67%, classifying it as a high-quality magnesium dolomite mine, characterized by a large scale, shallow burial, gentle dip, and stable thickness, making it suitable for open-pit mining [1] Group 2: Resource Utilization - It is estimated that over 700 million tons of dolomite ore for magnesium use has been confirmed within the open-pit mining area, along with more than 300 million tons of dolomite for construction purposes [1] - The resource has diverse utilization value, serving as an important raw material for magnesium metallurgy, and can also be applied in refractory materials, metallurgical flux, glass, and ceramics, indicating significant potential for comprehensive resource utilization [1]