Late magmatic – hydrothermal tourmaline occurrences within leucogranites in NW Anatolia (Turkey): Mineral chemistry and genetic implications     

《Chemie der Erde / Geochemistry》2021,81(1):125676

Numerous Oligo-Miocene plutonic and associated aplite-pegmatite rocks occur in the Western Anatolian Magmatic Complex. However, only the plutons of Namazgah, Karadağ, Soğucak and Karadoru, in the Biga Peninsula, host three different types of tourmaline: disseminated, nodular, and vein-type. These all fall into the alkali subgroup and schorl-oxy-schorl-dravite-oxy-dravite solid solution series. This study shows they were formed during late magmatic to hydrothermal stages in the roof sections (at shallow crustal levels) of the granitoid intrusions. Tourmaline compositions remained fairly homogeneous during the formation and evolution of each stage.  相似文献   

Adsorption of Lead (II), Copper (II) on tourmaline from Altai mine in China's Sinkiang     

HE Dengliang  YIN Guangfu  DONG Faqin  ZHANG Wei  BIAN Qingquan  SI yunxiang 《《地质学报》英文版》2012,86(2):423-429

Tourmaline from Altai mine in China's Sinkiang was used to remove lead (II), copper (II) from aqueous solution. The results demonstrate that tourmaline contains Na(Mg,V)3Al6(BO3)3Si6O18(OH)4, NaFe3Al6(BO3)3Si6O18(OH)4. The data show that Tourmaline from Altai mine in China's Sinkiang can be used natural adsorbent for lead (II), copper (II).It is observed that the adsorption data fitted to the Langmuir isotherm. Furthermore, both Pb (II) and Cu (II) absorbed by tourmaline and tourmaline were characterized by X-ray diffraction, Laser Raman Spectrum, Fourier transform infrared spectroscopy, X-ray energy dispersive spectrometer, Transmission electron microscopy and Zeta potential.  相似文献