Abstract
The Wajilitag Fe–Ti–V oxide deposit is the only ore body that is being mined in the Tarim LIP. It was probably formed by a slowly cooling magmatic crystallization from a deep magma chamber. Fe–Ti oxides therein were formed by two stages of fractionations: minor Fe–Ti oxides as oxide inclusions in the silicate minerals were crystallized in the early stage of the magmatic process, whereas most of the Fe–Ti oxides were accumulated interstitial to the silicate minerals in the late stage of the magmatic process when silicate crystals had already cumulated. The parental magma of the Wajilitag intrusion was enriched in Fe and Ti, which may be produced by a low degree of partial melting from the mantle source. Extensively fractional crystallization may have caused the evolved magma with a further Fe–Ti enrichment.
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