Alaskan-type nature and PGE mineralization of the Wuxing mafic-ultramafic complex in eastern part of the Central Asian Orogenic belt

•The Wuxing mafic–ultramafic complex is identified as an Alaskan-type complex.•Sulfur isotopic compositions indicate the influx of subducted materials.•The parental magma was derived from fluid-metasomatized mantle wedge.•The high-degree partial melting of mantle wedge caused the PGE enrichment.