The vertical and horizontal accretion and recycling of crust play a pivotal role in continental growth. Continent amalgamation and splitting have been widely investigated in the context of supercontinent emergence and destruction (Rogers and Santosh, 2002;Santosh et al., 2009;Roberts and Spencer, 2015), the Paleoproterozoic to Mesoproterozoic Columbia supercontinent being the best candidate with which to investigate supercontinent formation and breakup, recording, as it does, a whole Wilson cycle (e.g., Zhao et al., 2002Zhao et al., , 2004Rogers and Santosh, 2009).Hainan Island recorded complex geological and tectonic evolutionary histories in the Mesoproterozoic and provides comprehensive information on the amalgamation and breakup of the Columbia supercontinent (e.g., Li et al, 2002Li et al, , 2008