Abstract Hydrothermal alteration of primary tourmaline (dravite, oxy-dravite, fluor-dravite,” uvite“, schorl, oxy-schorl, fluor-schorl) and associated plagioclase and quartz is examined in coarse-grained pegmatitic plagioclase-tourmaline rocks, simple granitic pegmatites and zoned beryl-columbite pegmatites, all cutting serpentinite from the Moldanubian Zone, Czech Republic. Tourmaline is replaced by a wide spectrum of minerals—prehnite, pumpellyite-(Al), K-feldspar, chlorite, muscovite, natrolite, arfvedsonite, titanite, epididymite, and hydrous Mg-silicates—and idealized replacement reactions of tourmaline are presented. Secondary mineral assemblages replacing tourmaline and chlorite geothermometry suggest evolution of the PT conditions of tourmaline alteration from T ~ 400–350 °C to 200–100 °C and P

中文翻译：

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蛇纹岩中伟晶岩中电气石的热液蚀变：具有不同流体源的多阶段过程

摘要 在粗粒伟晶质斜长石-电气石岩石、简单的花岗质岩中检查了原生电气石（dravite、oxy-dravite、fluor-dravite、“uvite”、schorl、oxy-schorl、fluor-schorl）和相关的斜长石和石英的热液蚀变伟晶岩和分区绿柱石-铌铁矿伟晶岩，均来自捷克共和国摩尔达努比亚地区的蛇纹岩。电气石被广泛的矿物取代 - 孕黄长石、抽水镁石-(Al)、钾长石、绿泥石、白云母、钠沸石、铝矾石、钛铁矿、附睾石和含水镁硅酸盐 - 并且呈现了电气石的理想置换反应。次生矿物组合取代电气石和绿泥石地球测温表明电气石蚀变的 PT 条件从 T ~ 400–350 °C 到 200–100 °C 和 P 的演变