The Hualgayoc district in the Cajamarca region, northern Peru, hosts several deposits, including the Cerro Corona Au+Cu porphyry deposit (0.55 Mt Cu, 99 t Au) and the Tantahuatay high-sulfidation epithermal Au deposit (74 t Au), plus other Au, Cu, Ag and base metal prospects. Previous studies have documented that zircon in igneous rocks associated with porphyry systems elsewhere in the world shows large positive Ce anomalies and small negative Eu anomalies, which reflect both the oxidized and hydrous nature of their parental magmas. This study presents the trace element compositions of magmatic zircon from igneous rocks associated with porphyry-style mineralization, as well as barren stocks, sills and volcanic rocks in the district, in order to investigate the usefulness of zircon composition in exploration for porphyry-type deposits. The compositions of the zircon suggest that all parental magmas in the Hualgayoc district are oxidized, and that the magnitude of Ce and Eu anomalies is independent of the spatial and/or temporal association of igneous rocks with mineralization. Although zircon composition is not sufficient to recognize specific intrusions as fertile to generate hydrothermal ore deposits, the composition, properly applied, may be useful to target areas containing oxidized igneous rocks for further detailed exploration.

秘鲁北部卡哈马卡地区的Hualgayoc区拥有数个矿床，包括Cerro Corona Au + Cu斑岩矿床（0.55 Mt Cu，99 t Au）和Tantahuatay高硫化超热金矿床（74 t Au），以及其他金，铜，银和贱金属的前景。先前的研究已经证明，与世界其他地区的斑岩系统相关的火成岩中的锆石显示出大的正Ce异常和小的负Eu异常，这反映了其母岩浆的氧化和含水性质。这项研究提出了与斑岩型矿化有关的火成岩中岩浆锆石的微量元素组成，以及该地区的贫瘠储量，基石和火山岩，以研究锆石成分在斑岩型矿床勘探中的实用性。 。锆石的成分表明，Hualgayoc地区的所有父母岩浆都被氧化，Ce和Eu异常的大小与火成岩与矿化的时空联系无关。尽管锆石的成分不足以识别特定的侵入体以肥沃地产生热液矿床，但适当应用的锆石成分可用于将含氧化火成岩的区域作为目标，以进行进一步的详细勘探。