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在福建平潭辉长岩中发现了自然形成的{211}型锆石. 锆石群的形态和成分研究显示, {211}型锆石属于第1期锆石中最早结晶的锆石相, 低Hf和贫U, Th, Y的地球化学特征, 揭示了其接近平衡状态的结晶过程, 可以视为深部岩浆房中结晶的产物. 因此推测富Zr的平潭辉长岩浆是由地幔岩浆分异而来. 这种在下地壳发生的岩浆分异作用和锆石结晶作用, 表明该区存在地幔岩浆的底侵作用, 从而造成了晚中生代大规模的岩浆活动.
Naturally formed {211} zircons have been found in the Pingtan gabbro, Fujian Province. Studies on the morphology and composition of the zircons show that {211} zircons are the earliest crystallized zircons in the first stage of zircons, Low-lying Hf and depleted U, Th, Y geochemical characteristics reveal that the near-equilibrium crystallization process can be regarded as the product of crystallization in the deep magma chamber. Therefore, it is speculated that the Zr-rich Pingtan gneiss magma is composed of mantle magma The magmatic differentiation and zircon crystallization in the lower crust indicate that there is an underplating of mantle magma in this area, resulting in a large-scale magmatic activity in the Late Mesozoic.