Lithospheric structure beneath the eastern Junggar Basin (NW China), inferred from velocity, gravity and geomagnetism

•The crust of the eastern Junggar Basin has the upper, middle and lower layers.•The eastern Junggar Basin comprises the Manas Terrane in the south and the Ulungu Terrane in the north.•The eastern Junggar Basin has an oceanic basement, but with some small micro-continental blocks.•The eastern Junggar Basin has subducted southward beneath the Northern Tianshan.