CAJ | 학술논문

尽管目前地球化学异常下限的计算方法较多，但不同程度上存在计算过程复杂、应用范围较窄、相关专业软件普及程度低等问题。针对这些问题，笔者提出将EDA技术与经典统计概率法相结合的方法，并应用Excel下的程序开发工具进行VBA编程，在Excel中实现异常下限的快速计算。该方法具有计算简便、异常下限稳健以及应用范围广等优点。依据方法原理，该方法仅适用于来自单一母体的数据样本，来源母体可通过分形图给出初步判定方法。
진관목전지구화학이상하한적계산방법교다，단불동정도상존재계산과정복잡、응용범위교착、상관전업연건보급정도저등문제。침대저사문제，필자제출장EDA기술여경전통계개솔법상결합적방법，병응용Excel하적정서개발공구진행VBA편정，재Excel중실현이상하한적쾌속계산。해방법구유계산간편、이상하한은건이급응용범위엄등우점。의거방법원리，해방법부괄용우래자단일모체적수거양본，래원모체가통과분형도급출초보판정방법。
Although there are many methods to determine thresholds of geochemical anomaly,they all to some extent have such prob-lems as complex calculation process,narrow application scope,and low popularity degree of professional software.Aimed at solving these problems,the authors put forward a method formed by the combination of EDA technique and classical statistical probability method.And a VBA program for this method is developed by using the Application Development Tools in Excellto realize the quick cal-culation of geochemical anomaly thresholds.This method and VBA program are characterized by simple and convenient calculation,ro-bust anomaly thresholds and wide application range.Nevertheless,according to the principle of this method,it can only be applied to the data from a single parent body which can be recognized by fractal pictures.