At present, mafic rocks from the lower crust in the Dabie Mountains or even in the northern Yangtze plate have been scarce, which may be delaminated and recycled into underlying convecting mantle.

• 大别山造山带乃至扬子板块北缘现今缺乏厚层镁铁质下地壳，它们也很少出露地表，推测这些俯冲的镁铁质下地壳可能已拆离再循环进入地幔。