Geochemistry of Punctuated orogeny during the assembly of Asia: Tectonostratigraphic evolution of the North China craton and the Qilian Shan from Paleoproterozoic to Early Paleozoic

Whole rock geochemistry from the northern Tibetan Plateau, eastern Qilian Shan and Longshoushan. Samples range in age from Paleozoic to Proterozoic. Granitoid and volcanic rock samples were analyzed for major and trace elements at the Chinese Academy of Geologic Sciences in Beijing, China. Major elements were analyzed using an X-ray fluorescence spectrometer. Trace elements were measured on an inductively coupled plasma-mass spectrometry (ICP-MS).