“…Under concept of the Mongol-Okhotsk belt, these Paleozoic pelagic deep-water sediments were interpreted as an accretionary wedge in the trench along the southern margin of the SIB (Zorin, 1999). Gordienko (1987; considered that these rocks represented a back-arc sediments formed by the northward subduction of the MOO. On the contrary, Badarch et al (2002) proposed that the thick Devonian-Carboniferous pelagic deep-water sediments within this belt represent a coherent turbidite sequence overlying a cratonic basement.…”