Fig. 9

Spatial distribution, ZTR isoline and provenance analysis of Paleogene heavy minerals in the western segment of the northern Qaidam Basin. (a) Lulehe Fm.; (b) Lower Xiaganchaigou Fm.; (c) Upper Xiaganchaigou Fm.; (d) Shangganchaigou Fm. The maps were generated using CorelDRAW 2020 (https://www.coreldraw.com/en/pages/coreldraw-2020/).