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2407钻孔氡水异常位于3701矿床西南段。几年来,经对该地段2407等13个钻孔抽水,现已圈定一个长240米、宽80米的高氡水异常区(图1)。水中氡一般100—1500爱曼,最高13870爱曼。通过深部揭露,为扩大远景,寻找盲矿体起到了一定作用。一、矿床地质、水文地质概况矿床产于我国南方某花岗岩体外接触带中泥盆统应堂组灰岩中。区内构造以断裂为主,褶皱次之。铀矿体受构造和岩性双重控制。目前所见工业铀矿体及以2407钻孔为代表的西南段高氡水异常区均位于应堂组灰岩中,并受F_2构造控制。
The 2407 borehole radon water anomaly is located in the 3701 southwest section of the deposit. Over the past few years, pumping holes have been drilled in 13 boreholes such as Lot 2407 and a high-radon water anomalous zone 240 meters long and 80 meters wide has been delineated (Figure 1). Water radon generally 100-1500 Aiman, the highest 13870 Aiman. Through deep exposures, finding a blind ore body has played a certain role in expanding the prospect. I. Geology and Hydrogeology of Deposits Ore deposits are produced in the limestone of Yingtang Formation in the Devonian External Contact Zone of a granite in southern China. The area is dominated by faulting and folds are the second. Uranium ore bodies are controlled by both tectonics and lithology. The present industrial uranium ore bodies and the SWR anomalous area in Southwest China, represented by 2407 boreholes, are all located in limestone of Yingtang Formation and controlled by F 2 structure.