这些变化可以通过地球内的流体的活动，火成岩体的运动或区域性构造活动而发生。
Such changes can occur through the activity of fluids in the Earth and movement of igneous bodies or regional tectonic activity.
苏北盆地的SXF地区是典型的低信噪比地震资料地区，断裂系统复杂，构造破碎，圈闭面积小，火成岩发育。
Because of complex fracture system, faulted structures, and rich igneous rocks, SXF area is a representative low signal-to-noise ratio seismic data region in Subei basin.
控矿构造的遥感信息解译表明攀西地区主要的控矿因素为断裂带和火成岩体。
Interpretation of remote sensing information manifests that main ore-controlling factors in the Panxi area are fault belts and igneous bodies.
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