杂多酸络合物及其与热液成矿元素组合的关系

杂多酸是一种含多种金属－非金属阳离子的多元络合物，在适当条件下可能成为成矿元素热液迁移的重要形式。杂多酸络合物作为某些成矿组合的共同载体能使它们共同进入地球化学迁移并生成一定的元素共生组合，本文以川西北低温热液的Ａｕ－Ｓｂ－Ｗ－Ａｓ建造矿床为例，初步讨论了钨的杂多酸对元素热液迁移的重要意义，并以此解释了钨这一高温热液成矿元素常常在许多中－低温热液矿床中与锑、砷等低温成矿元素稳定共生的地球化学机制。

HETEROPOLYACIDE COMPLEXES IN RELATIONSHIP TOHYDROTHERMAL PARAGENESIS OF ORE ELEMENTS

Hetcropolyacides, which could play an important role in element transport in ore-buildinghydrothcrinal solutions under certain conditions,are a sort of polycomplcxee containing various mietal-lic-nonmetallic cations. In the role of common carriers of various elements,heteropolyacide tomplexesare eapable of transporting various ore-building elements together in hydrothermal solutions and thenconsequently resulting in certain paraseneses while they become unstable and decompose to precipitatethe elements contemporaneously in ores. This could be an important and widespread geochemicalmechanism in hydrothermal ore formation. In the present paper'the seolosical implication of he-teropolyacide complexes for hydrothermal ore-formation was discussed,taking the Manaoke Au-Sb-W-As deposit for example. And by this mean the authors try to interpret why tunssten,normally a hy-pothermal metal element,frequently occurs in many epithermal dcposits together with typic epithermalelements such as Sb,As(in form of realgar and orpiment)as well as Hg in stable paragensis.