Kết hợp giữa thuật toán di truyền và phương pháp giảm dốc nhất để xác định độ sâu bồn trầm tích từ dị thường trọng lực 2-D

Abstract

A combined genetic algorithm and steepest descent method (GA-SD) is applied to determine the thickness of a 2-D sedimentary basin whose density contrast varies with depth as a parabolic function. The steepest descent’s an initial model was the best individual in the population obtained after evolutionary generations of the genetic algorithm (GA); then, the steepest descent method (SD) is applied to find a solution based on the minimum of the objective function. Firstly, it was tested on a synthetic model; then, it was applied on An Giang and Bac Lieu gravity anomalies in the Mekong Delta. The computed depths agree well with the results of the previous studies.