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The Jinchuan Ni‐Cu‐PGE deposit is one of the three largest magmatic Ni deposits in the world. Disseminated, net‐textured, Cu‐rich sulphide ores and massive sulphide ores are the most important ore types. The genesis of different ore types and the mineralization processes of the Jinchuan deposit remain controversial. Three hypotheses have been proposed by previous studies, including the in situ sulphide...
The ~287 Ma Yejili mafic–ultramafic intrusion in the southern Alxa Block mainly consists of lherzolite, wehrlite, and gabbro. Rocks from the lherzolite and wehrlite have olivine with Fo values ranging from 87.4 to 88.6 mol.% and from 81.6 to 87.4 mol.%, respectively, indicating crystallization from a moderately evolved magma, that is a mixing of 5% to 7% upper crust contaminant with the primitive...
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