Fig. 3: Geological map of drainage basins and bedrock AFT compilation ages around the upper Yellow River and the Wei River.

Geological maps showing the sedimentary successions distribution and the magmatic out crop around the Guide Basin, Xunhua Basin, and Xining Basin (a) and around the AR (Arcuate Range) region and EWQN (eastern West Qinling mountains) region (b). The bedrock AFT compilation dataset and the related literatures are in Supplementary Data 3. Modified from the Geological Map of China (1:2,500,000) compiled by the China Geological Survey institute in Hebei. LWR.: Longwu River. ZLR.: Zuli River. SDR.: Sandu River. QSR.: Qingshui River.