Fig. 6From: 3-D inversion of magnetic data based on the L1–L2 norm regularizationOptimal models derived by L1–L2 norm combined regularization. Optimal models derived by L1–L2 norm combined regularization using weighting function \(w^{S_1}\) with a \(\alpha = 0.0\), and b \(\alpha = 1.0\). and c \(\alpha = 0.8\). White squares indicate the location of the magnetized blocks of the true modelBack to article page