Progresses of studies on the genesis of Fe-Ti oxide deposits in the Emeishan Large Igneous Province
Fe-Ti oxide deposits are mainly hosted in mafic-ultramafic layered intrusions associated with Large Igneous Provinces(LIPs).Although there are many mafic-ultramafic layered intrusions formed in large igneous provinces around the world,the large-scale Fe-Ti oxide mineralization occurred in those intrusions is not common.Several layered mafic-ultramafic intrusions in the Panzhihua-Xichang region,located in the inner zone of the Emeishan LIP(ELIP),hosted several world-class Fe-Ti oxide deposits,making the Panzhihua-Xichang area to be the largest Fe-Ti ore province in the world.The large-scale mineralization of Fe-Ti oxides is closely related to the composition of parent magma and the enrichment mechanism of Fe-Ti oxides.Furthermore,a very effective enrichment mechanism is needed to explain how such thick Fe-Ti oxide layers were formed in these intrusions.In this paper,we have systematically reviewed recent advances of researches in the aforementioned areas,have analyzed the critical factors controlling the large-scale mineralization of Fe-Ti oxides,and have pointed out some remaining issues that should be addressed in future researches.
Emeishan large igneous provinceFe-Ti oxide depositcritical controlling factorsparental magma composition
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