This is an example of applying polynomial and Fourier tvend-surface analysis to gentle folds. Its geological interpretation, referring to the geological background and making use of the related theories of geological structure, is mainly about the belt-like residual in the residual maps. The results are encouraging.
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. 1977, 平缓褶皱的趋势面分析举例. 地质科学, 12(4): 377-389.
. AN EXAMPLE OF TREND-SURFACE ANALYSIS OF GENTLE FOLDS[J]. Chinese Journal of Geology, 1977, 12(4): 377-389.