Figure 1: (a) Map of the Tarim Basin showing the main tectonic units (modified from He et al., [23]). Dashed rectangle denotes the location of study area and TS1. (b) Palaeogeographic setting of the northern Tarim Basin (study area) during the Cambrian period (modified from [1721]). Dashed line indicates the location of seismic profile shown in Figure 3.