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在个旧矿区的东区地下隐伏着一个巨大的穹隆状花岗岩体,随着勘探的不断深入,已发现在穹隆状岩基的边坡上分布着一个巨大的环状接触构造带,构造带的平面分布范围达40多km2。其上已探明一连串的矿体,到目前为止,对环构造带的勘探,累计探获金属储量,铜超过20万t,锡超过12万t,铜、锡金属储量都超过了一个大型矿床的标准。这些矿体的形状和产出严格受环形构造的控制,且矿体的成因同环状接触构造的关系极为密切。
A huge dome-shaped granite body is concealed underground in the east area of Gejiu Mining Area. With the continuous exploration, it has been found that a huge annular contact structure belt is distributed on the slope of the dome-shaped rock foundation. The plane distribution of structural belt The range is over 40 km2. Up to now, a series of ore bodies have been discovered. So far, exploration of the ring structural belt has accumulated metal reserves of over 200,000 tons of copper and over 120,000 tons of tin. The reserves of copper and tin surpass those of a large deposit Standard. The shape and output of these ore bodies are strictly controlled by the ring structure, and the genesis of the ore body is closely related to the ring-shaped contact structure.