异常场强度的数值低于正常场的统称负异常,为负数值。绘平面等值线图时,多用虚线表示。在剖面图上,正常场零值线以下的部分为负异常。
③碎屑岩剖面上的储集层中泥质含量都较低,在自然电位曲线上表现为明 显的负异常(Rmf>Rw),或在自然伽马曲线上显示为明显的低值。 测井资料储集层评价基础一般先用自然电位 SP、自然伽马GR、微电 极ML曲线及井径曲线...
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Y的负异常 Negative Y anomalies
铈负异常 ce anomaly
异常负载检测 Abnormal load detection
一的非负整数的异常号 exception number
区域负异常,可以指明区域找矿方向,圈定找矿靶区;
The negative anomaly on the region can guide us regional exploring direction and delineate the prospecting target area.
认为,区域性重力负异常多反映的是沉积盆地或凹陷;
The paper suggests that the regional negative gravity anomaly reflected mainly the sedimentary basin or the depression;
同时还观测到,P波速度负异常区随中心压力增加逐步扩大。
Meanwhile, it is also observed that the regions of negative anomalous P-wave velocity are enlarged by steps as the central loading is increased.
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