Pleistocene basaltic volcanism in the Krông Nô area and vicinity, Dac Nong Province (Vietnam)

•Widespread Pleistocene basalt volcanism in Krông Nô, Dac Nong, Vietnam, is reported.•Four basalt volcanic centers occur along a regional extensional fault.•The basalts are tholeiitic and alkaline types having distinct geochemical character.•The magmas reflect column melting from low- to high-melting temperature and pressure.•The volcanism is India-Eurasian collision-induced rather than mantle-plume derived.