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科罗拉多高原大多数的主要鈾矿床局限于扁长的矿带內。由于围岩中沒有明显地証明矿石的局部化的特征,所以矿石的沉积是由成矿溶液內的某些变化而产生的。可以进一步推測矿石的沉积是由于横向流动的合鈾地下水压力的减少而引起。有人認为,鈾是来自沉积岩內含鈾火山碎屑的破坏。从沉积物压实产生的压力和横压力会引起地下水流經蓄层。压力减少和远离矿源都会减少鈾的溶解度。并使它沉淀。因此,矿带一边以古等压面为界,表示开始沉淀时的压力,另一边以大致平行的面为界。表示这个面以外已消耗的溶液再也不形成主要矿床。
Most of the major uranium deposits in the Colorado Plateau are confined to prolate ore belts. Due to the fact that the localization of ore is not clearly evidenced in the surrounding rock, the ore deposits are caused by some changes in the ore-forming solution. It can be further speculated that the deposition of ore is caused by the reduction of the pressure of uranium-bearing groundwater flowing laterally. Some people think that uranium is from the sedimentary uranium pyroclastic debris damage. The pressure and cross-pressure generated from the compaction of sediments can cause groundwater to flow through the reservoir. Reduced pressure and away from the mine will reduce the solubility of uranium. And make it sediment. Therefore, the side of the ore belt, which is bounded by the paleo-isobaric surface, indicates the pressure at the beginning of sedimentation and the other side is bounded by a substantially parallel surface. Indicating that the solution already consumed beyond this surface no longer forms a major deposit.