STUDY ON THE MASS-BALANCE OF STRIPPED MIGMATITES IN DABIE COMPLEX, NORTHEASTERN HUBEI
鄂东北大别杂岩中条带混合岩的质量平衡研究

The result of mass-balance calculation of the stripped migmatites indicates that the migmatite with high-potassium leucosomes was formed in a open system, and that the migmatite with high sodium leucosomes may equally be formed in both closed and open systems. The calculation of excess mass indicates that during the migmatization MgO and FeO were reduced and SiO_2 and K_2O were concentrated in the open system.