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引言近些年来,随着地层研究的深入开展,在地层图编制和研究方面有显著的进展。由于高速电子计算机的出现和广泛应用,很多作者在研究工作中借助数学工具对地质资料进行整理和解释。在地层数据的整理中应用趋势面分析就为其中一种较为有效的方法。在任何地区,对某一地层单位作详尽地层研究,必须阐明此地层单位的空间及时间上的变化规律。通常用的方法是编制各种图件,如岩性图、厚度图、相图,用等值线来表达地质特征在空间上变化的情况。在实际工作中发现,上述等值线有
Introduction In recent years, with the further development of stratigraphy, significant progress has been made in the compilation and study of stratigraphy. Due to the emergence and widespread use of high-speed electronic computers, many authors use mathematical tools to organize and interpret geological data in their research work. Applying trend surface analysis to stratification of formation data is one of the more effective methods. In any area, a detailed stratigraphic study of a stratigraphic unit must clarify the variation of space and time in this stratigraphic unit. Commonly used method is to prepare a variety of maps, such as lithology, thickness maps, phase diagrams, the use of contour lines to express the geological features of the spatial changes. In the actual work found that the above isoline