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新的观点表明,煌斑岩中富含金矿(约为普通火成岩的10倍),这一结论是根据地幔源是原始富金区推论出来的。西澳大利亚大学的N·M·S·罗克和D·I·格罗夫斯提出,煌斑岩岩浆适于携载金,因为它含有高量CO_2、H_2O、F、K、Rb和Ba,而含S为中等的“致密透镜状硫矿体实际是地壳中已知矿床的含金脉”(自然杂志,1988.3.17 P.253～255;地质学杂志,1988.6.)。按作者看法,仅是钙碱性煌斑岩与金矿床紧密共
The new viewpoints indicate that the lamprophyre is rich in gold deposits (about 10 times the normal igneous rocks), a conclusion that is based on the deduction of the mantle source from the original gold-rich areas. MN Rock and WD Groves of the University of Western Australia suggested that the lamprophyre magma is suitable for carrying gold since it contains high amounts of CO 2, H 2 O, F, K, Rb and Ba, While the S-medium “dense lenticular sulphide ore bodies are actually the gold veins of known deposits in the crust” (Nature, 1988.3.17 P.253-255; Geology, 1988.6.). According to the authors, only calc-alkaline lamprophytes are closely related to gold deposits