Topaz was previously considered as a typical hydrothermal mineral, and topaz greisen a typically altered rock. However, the geological and geochemical evidence in recent years has made it clear that the layer-like top...Topaz was previously considered as a typical hydrothermal mineral, and topaz greisen a typically altered rock. However, the geological and geochemical evidence in recent years has made it clear that the layer-like topaz greisen at the top of Ta- and Nb-bearing展开更多
基金National Natural Science Foundation of ChinaState Key Laboratory on Mineral Deposit Research,Nanjing University.
文摘Topaz was previously considered as a typical hydrothermal mineral, and topaz greisen a typically altered rock. However, the geological and geochemical evidence in recent years has made it clear that the layer-like topaz greisen at the top of Ta- and Nb-bearing
