摘要
松辽盆地北部北安地区跨盆地内北部倾没区和东北隆起区两个Ⅲ级构造单元。本文对松辽盆地北安地区可地浸砂岩型铀矿成矿条件分析后认为,该区具有丰富的铀源和良好的可地浸砂岩型铀矿成矿条件。具体表现在区内富含有机质,有利沉积相带发育,泥岩—砂岩—泥岩结构层发育良好,有含水透水层和隔水层,补—径—排机制较完善,水动力条件较好,具有渗入型自流水盆地特征,具备了可地浸砂岩型铀矿成矿地质条件,具有良好的勘探前景。
The Bei＇an area, northern part of Songliao Basin crosses northern pitching end and NE upwelling area, two Ⅲ tectonic elements in the Basin. Through the analysis for metallogenic geologic condition of leaching sandstone type uranium deposit in the Bei＇an area, northern part of Songliao Basin, it is considered that the study area should occur rich uranium resources and a good metallogenic geologic condition of leaching sandstone type uranium deposit. There are rich organic matter, and well developed mudstone- sandstone-mudstone structure, aquifer, permeable bed and confining bed, therefore, there forms a good hydrodynamic condition, being advantageous to the mineralization; the recharge- runoff- discharge mechanism is relative complete, characterized by the permeable artesian basin, which satisfies the essential metallogenic geologic requirements for forming leaching sandstone uranium deposit and shows a good exploration prospect.
出处
《吉林地质》
2007年第2期16-22,共7页
Jilin Geology
关键词
可地浸砂岩型铀矿
成矿条件
活化铀
航放资料
leaching sandstone type uranium deposit
metallogenic condition
activation uranium
airborne data
