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农乐石膏矿矿体赋存于三迭系中统雷口坡组(T_2l)及下统嘉陵江组(T_1j)中,系海相沉积型矿床。矿区地质构造复杂,岩层破碎。矿层直接顶、底板均系泥质角砾岩。矿体内有一到数层绿豆岩(水云母粘土岩)泥质角砾岩和泥岩等夹层。在上述各岩层中,钻探岩芯采取率通常较低。此外,部分钻孔中见有钾盐(杂卤石岩)和芒硝,这都给石膏的勘探工作带来了一定的困难。该矿区在详查阶段结束后已进入储量勘探阶段。为配合该矿的高级储量勘探工作,投入了以电测井及自然伽玛测井为主要手段的地球物理测井工作,以期达到校正地质编录,划分钻孔地质剖面,准确划分矿层顶、底板位置的目的,为高级储量的计算提供更充分的依据。该矿区中矿体与夹层、围岩之间的物性
The Nongle gypsum ore body is hosted in the Triassic Central Leongkoupo Formation (T_2l) and the Lower Jialingjiang Formation (T_1j), which is a marine sedimentary deposit. Complex geological structure of mining area, broken rock. Ore direct top and bottom plate are muddy breccia. There are several layers of mungite (water mica clay rock) muddy breccia and mudstone in the ore body. Drilling core take-up rates are generally low in all of the above rock formations. In addition, some of the boreholes found in the potash salt (lavadesite) and Glauber’s salt, which have brought some difficulties in the exploration of gypsum. The mining area has entered the reserve exploration stage after the detailed investigation stage. In order to cooperate with the advanced reserves exploration work of the mine, geophysical well logging work with electrical logging and gamma ray logging as the main measures has been put into operation so as to reach the geological record correction, divide the borehole geological section and accurately classify the top and bottom of the ore seam The purpose of location, provide a more sufficient basis for the calculation of advanced reserves. The ore body and the interlayer, the physical properties between the surrounding rock