统计结果表明，中、细粒砂岩是铀矿化最有利的岩石类型。
Statistical results show that medium and fine-grained sandstones are the most favorable rock types for uranium mineralization.
砂岩通常是良好的含水层，而细粒泥岩通常是不透水的。
Sandstones generally make good aquifers, while finer-grained mudstones are typically impermeable.
准噶尔盆地阜东斜坡区侏罗系砂岩储层为河流环境下形成的各类细粒岩屑砂岩。
The Jurassic sandstone reservoirs in Fudong Slope, Jungar Basin, are various fine_graded lithic sandstones deposited in a fluvial environment.
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