The objectives of the present study include: (1) characterizing the occurrence of the Fe-oxide–apatite, Cu–Au, and pyrite deposits, particularly focusing on the latter two types of deposits; (2) presenting new fluid inclusion and sulfur isotope data for the Cu–Au deposits; (3) exploring the relationship of the Fe-oxide–apatite and associated Cu–Au and pyrite deposits as part of the same magmatic–hydrothermal system; and (4) comparing the Fe-oxide–apatite and Cu–Au deposits of the Cretaceous Ningwu basin with the Norrbotten Fe-oxide–Cu–Au district of northern Sweden.