The paper mainly reports new mineral chemistry data of amphibole and plagioclase from skarn iron deposit related quartz monzonite porphyry. By investigating the zoning texture of minerals, the authors discussed the multiple injections of mafic magma into felsic magma chamber, and the formation of the skarn type iron deposit. This paper can be accepted for publication after minor corrections.

There are some minor questions:
(1) Where did the mixing and homogenization happen? In the boundary of lower crust and mantle? Or in the magma chamber at middle crust? Your evidence just illustrates the chemico-physical conditions at ~17 km deep.
(2) Where are the pyroxene minerals which were sourced from the injections of basaltic magmas?
(3) There are some comments in the annotated PDF. Please check them and revise.

Related small mistakes have been maked into the noted PDF file. Please see it. Hoping these comments will improve the current manuscript.