Bulk rock major and trace elements and isotopes from Central Qilian belt in NE Tibet, China

Petrography, bulk-rock and mineral geochemistry, zircon and titanite U–Pb ages, bulk-rock Sr–Nd–Hf isotopes for the Heigou Complex. Bulk major and trace elements were analyzed in the State Key Laboratory of Continental Dynamics, Northwest University and bulk–rock Sr–Nd–Hf isotope analyses were analyzed using a Neptune Plus multicollector (MC)–ICP–MS (Thermo Fisher Scientific, Germany) at the Wuhan Sample Solution Analytical Technology Co., Ltd., Wuhan, China.