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根据变密度组合体重力模型,作者研制了重力曲线自动拟合的方法和程序。这种方法的优点在于最大限度地利用已知地质、地球物理资料,能克服人机联作过程中人的随意干预;在曲线拟合过程中,由于逐次地修改各层段的厚度、宽度和密度,整体地进行计算和拟合,因而大大提高了计算精度,而且计算过程不需工作人员守候,节省时间。利用这一方法和程序计算了大别山—台湾重力剖面,绘出了剖面范围内地壳结构的新模型,表明南岭花岗岩上地幔的不均匀性和断裂带的许多特征。这些结果与当前该区地壳结构的多方面资料是相符的,证明新研制的自动拟合方法是正确和可靠的。
According to the gravity model of variable density combination, the author has developed a method and program for automatically fitting the gravity curve. The advantage of this method lies in making use of the known geophysical and geophysical data to the maximum extent and overcoming the random human intervention in the man-machine cooperation. In the curve fitting process, the thickness, width and Density, the overall calculation and fitting, thus greatly improving the accuracy of the calculation, and the calculation process without staff waiting, save time. Using this method and program, the Dabieshan-Taihe gravity profile was calculated and a new model of the crustal structure within the profile was plotted to show the heterogeneity of the upper mantle in the Nanling granite and many characteristics of the fault zone. These results are consistent with the current multi-faceted crustal structure data in this area, proving that the newly developed automatic fitting method is correct and reliable.