| The conception of abnormity is not strangeness in the field of geology. Physical geography abnormity and geochemistry abnormity are the important gist for the forecasting of mineral resources. By the sampling in workaround and date processing, we can have the abnormal limit, rapid gain a grate area of integrated abnormity, including strong abnormity, mezzo piano abnormity and feebleness abnormity, which abnormity can be as emphases are an important precondition for seeking mine in the cause of geochemistry sifting. So in the west of china, where is complicated geology land, effective method has important realized meaning, which can help us advance the efficiency in decomposing grate geochemistry anomaly area, reduce the area of abnormity and seek for anomaly focusing area.Traditionally, anomaly consistence focus is an area, which is marked out by the abnormal limit of 1~2 times. In dealing with the multiple, selecting a proper time is easily influenced by others factors. Adopting smaller multiple will increase the workload seeking mine. But selecting bigger multiple, the following is likely leave out some valuable abnormity. So the traditional method has definite subjectivity and localization for marking out the anomaly consistence focus. We need a much more scientific and logical method mark out the anomaly focusing area.The paper based on the theory of the fractal, combining the geological character of researching area, introducing the computing method of grads on Hausdorff measure, namely content-grads method. By the method dealing with the date of 1:50 000 hydrographic deposits in Heng Xingcuo workaround, marked out the anomaly consistence focus. Form the effect of applied, the scale, which was marked out by the method, is impersonality and comprehensive reflecting mineral area. So, we consider the content-grads method is applied and effective, which is recommendable in the work of marking geochemistry anomaly of the middle and large scales investigation of country resources. |
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