Abstract The Yilgarn Craton of Western Australia is one of the largest Archean cratons in the world and is well-known for its metal endowment. In order to provide new insights into its metallogenic fertility and the nature of the upper mantle that lies underneath the craton, this study investigates the poorly constrained platinum-group element (PGE) and gold signatures of a selected suite of calc-alkaline lamprophyres, ultramafic lamprophyres, carbonatites and orangeites, ranging in age from the Proterozoic to the Late Archean. Proterozoic ultramafic lamprophyres and carbonatites within the Eastern Goldfields Superterrane (EGS) of the Yilgarn Craton have anomalously low PGE contents (Ir = 0.1–1.3 ppb; Ru =

中文翻译：

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西澳大利亚伊尔甘克拉通晚太古代至元古代钙碱性和碱性岩浆的铂族元素和金地球化学

摘要 西澳大利亚的伊尔加恩克拉通是世界上最大的太古代克拉通之一，以其丰富的金属资源而著称。为了对其成矿富集性和位于克拉通下方的上地幔的性质提供新的见解，本研究调查了一组精选的钙碱性斑岩、超镁铁质的铂族元素 (PGE) 和金特征。斑岩、碳酸岩和橙岩，年龄范围从元古代到太古代晚期。Yilgarn Craton 东部金矿超级地体 (EGS) 内的元古代超镁铁质斑岩和碳酸岩具有异常低的 PGE 含量 (Ir = 0.1–1.3 ppb; Ru =