Chemical and boron isotopic composition of tourmaline in the Xiangshan volcanic–intrusive complex, Southeast China: Evidence for boron mobilization and infiltration during magmatic–hydrothermal processes

Three types of tourmaline occurrences have been distinguished in the Xiangshan volcanic–intrusive complex, SE China: (1) tourmaline–quartz nodules (NT type) in the porphyroclastic rhyolitic lava, (2) tourmalinite or tourmaline-rich quartzite (TT type) as xenoliths in the porphyroclastic rhyolitic la...

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