【摘要】 地质成矿作用在空间上具有强烈的不均匀性,因此对地球物理和地球化学场进行背景与异常划分时应采用具有变焦功能的窗口。移动平均法由于算法简单、容易理解、易于编程、运算速度快,成果也容易解释。若赋予其以变焦功能,可以避免复杂运算。变焦窗口可以用结构分析和实验半变异函数来确定。变焦移动平均法有利于提高背景值和异常值的估值精度、合理划分背景与异常、识别弱异常和缩小找矿靶区。更多还原

【Abstract】 Geological and metallogenetic processes are violently asymmetrical,thus the recognition of geophysical, geological and geochemical background and anomaly must use zooming windows.The algorithm of moving average is easy.Its principle is easy to be understood and the results are facile to explain. Using the moving average with zooming windows can relieve users from complicated calculations. Zooming windows can be determined by the experimental semi-variation function.The moving average method is benefitial to improve the estimation precision,and recognizing the background and anomaly much more reasonably.It is also propitious to reducing the area of prospecting target.更多还原