Figure 3

(a) MT transect line of Zhijiang-to-Zhecheng (ZZ) on a simplified tectonic map (generated by hand drawing in Grapher 10); and (b) 51 deployed MT stations (solid circles) on a regional free-air anomaly map of satellite gravity; the dot-dashed lines represent the sutures among the North China Craton, Central China Orogenic Belt and the Yangtze Block.