The formation of P-rich Fe–Ti oxide ore layers in the Taihe layered intrusion, SW China: Implications for magma-plumbing system process

The Taihe intrusion is one of the layered intrusions that host giant Fe–Ti oxide deposit in the central part of the Emeishan Large Igneous Province, SW China. Different from the other layered intrusions, the Taihe intrusion has a massive Fe–Ti oxide ore layer at the top of the Lower Zone (LZ), particularly, the rocks of both Middle and Upper Zones contain as much as 5–12% apatite, and the most important Fe–Ti oxide ore layers (apatite magnetite...