Fig. 10
Geochemical variations and spatial distribution of magmatic rocks from the NW-MBPC. a Sampling location and accessory points marked by small blue filled-circles. Accessory points used in blanked area to achieve a higher accuracy on neighborhood analysis. b, c The statistical modeling of SiO2 and MgO-variations across the MBPC, based on spatial analysis-kriging method (Arc GIS 9.2 environment) using analyzed samples and extrapolation of neighborhood values