岩石矿物学杂志2013，Vol.32Issue(2)：251-259,9.
高压-超高压变质电气石研究的现状和进展
Recent progress in HP-UHP metamorphic tourmaline research
摘要
Abstract
The recent research on HP-UHP metamorphic tourmaline is summarized in this paper. Tourmaline is a common mineral existent in sedimentary, igneous and metamorphic rocks. A variety of experiments demonstrate that this mineral can be stable in an exceptionally large p-t range, i. e. at p-t conditions >850℃ and > 4 GPa. Owing to the low volume diffusion, the preservation of growth zones in tourmaline has become an effective key to investigating the boron evolution in rocks, the fluid-chemical history and the metamorphism of rocks. The research on the structure and chemistry of tourmaline reveals that components, such as Al and F are correlated with the formation temperature. According to different boron sources, the formation modes of HP-UHP tourmaline can be categorized into three types, i. e. , Type A, Type B and Type C. Based on the analyses of typical HP-UHP tourmaline in the world, the authors sum up the general characteristics of this mineral: ① most HP-UHP tourmaline is dravite; ② the crystallographic X-site is highly occupied (>0.8 pfu); ③ excess B (3.2 ～3.3 pfu) is common; ④ Ti, Mn, Li and Cl have low abundances; and ⑤ the δ11B values range from - 16‰ to + l‰. As for future work on HP-UHP tourmaline, we should highlight the relationships between crystal chemistry and p-t conditions during its formation, the trace-element partitioning between tourmaline and fluids, and the phase equilibrium modeling for B-bearing mineral assemblages.关键词
电气石/高压-超高压/柯石英/金刚石/综述Key words
tourmaline/ HP-UHP/ coesite/ diamond/ review分类
天文与地球科学引用本文复制引用
杨鑫,张立飞..高压-超高压变质电气石研究的现状和进展[J].岩石矿物学杂志,2013,32(2):251-259,9.基金项目
国家自然科学基金资助项目(41121062 （）
41272069 （）
41090371) （）
