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岛弧和大洋的玄武岩成分和成因的研究和对比,与这两个极其重要的大地构造单元的有关构造、形成动力学、物质成分和矿产等一系列现代假说有着紧密的联系。玄武岩是大洋及岛弧中广泛分布的几种岩浆岩之一。本文目的在于弄清岛弧和大洋火山岩的产
Studies and comparisons of the composition and genesis of basalts in island arcs and oceans are closely linked to a series of modern hypotheses about the formation and dynamics of these two extremely important tectonic units of geotectonics, formation of dynamics, material composition and minerals. Basalt is one of several magmatic rocks widely distributed in the ocean and island arcs. The purpose of this paper is to understand the production of island arcs and oceanic volcanic rocks