On the basis of geological,geochemical,geophysical studies,this paper suggests that this belt is likely to be a Neoproterozoic suture zone between the Yangtze plate and Cathaysian plate.

• 本文从地质、地球化学和地球物理上论证,认为该带可能是扬子板块和华夏板块在新元古代时的一条板块缝合带。