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四O一铀矿田大地构造位置处于华北地台南缘北秦岭构造带中段,近NWW向北秦岭构造带与NE向华山—蓝田—宁陕印支、燕山期岩浆岩带交汇区的牧护关岩体西北部边缘,属于莽岭—牧护关燕山期铜铁铀多金属成矿带~([1])。矿区西侧以近NS向盆缘断裂与第三系断陷盆地相邻,矿区东部为牧护关岩体的主体。由东向西发育一组由3条NE~NNE向弧形断裂与近NS向第三纪盆缘断裂接触带组成三角形圈闭区,是矿田定位条件~([2])。
The tectonic setting of the O-Uranium ore field is located in the middle part of the North Qinling tectonic belt on the southern margin of the North China Platform. The NW NW-trending Qinling tectonic belt and the NE protection belt to the Huashan-Lantian-Ningshan Indosinian and Yanshanian magmatic belt converge The northwestern margin of the rock mass belongs to the Manghan-Muhuanyuan Yanshanian Cu-U polymetallic metallogenic belt ~ ([1]). The west side of the mining area is adjacent to the basin margin near the NS and is adjacent to the Tertiary rift basin. The east part of the mining area is the main part of the Muowu rock mass. From east to west, a set of triangular trap zones formed by three NE-NNE arc fractures and near NS-Tertiary basin edge fault contact zones are the orefield positioning conditions ~ ([2]).