延长组储集岩主要为细粒的长石砂岩、长石岩屑砂岩、岩屑长石砂岩等，还有少量的石英砂岩。
The reservoirs of the Yanchang formation almost are fine feldspathic sandstone, feldspathic debris sandstone, rock fragment feldspathic sandstone, and little quartzose sandstone.
石英尘作为阳性对照组。
赋矿围岩为塔木兰沟组粗面安山质岩石，主要矿体为沿着NWW方向断裂构造就位的石英脉体。
The wall rock is trachyte andesite of Talimugou Group, and the main ore body is the quartz veins which located in NWW trending fractures.
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