“…The present geochemical and geochronological analyses revealed that In summary, the present study positively suggests a plume-related change of the mantle composition during the Jurassic-early Cretaceous (Nechaev et al, 2018); that is, from a primitive mantle to EM2, with respect to a change in subduction regime, from deep-angle during the Permian-Triassic to shallow-angle during the Triassic to Early Cretaceous, then back to deep-angle again in the mid-Cretaceous to Paleogene. The above conclusions with relevant tectono-magmatic interpretations in southern Primorye appear consistent with the data from the circum-Sea of Japan region, for example, NW China, Korean peninsula, and southwest/northeast Japan (Figure 17); on the contrary, they are significantly inconsistent with the widely accepted tectonic views of large-scale strike-slip tectonics in the early to mid-Cretaceous East Asia (e. g., Khanchuk et al, 1996, Khanchuk et al, 1997, Khanchuk et al, 2019Maruyama et al, 1997;Yamakita & Otoh, 2000;Golozoubov, 2006;Liu et al, 2017;Li et al, 2020).…”