They are characterized by the high-Al and low-Fe and-Mg composition and high Sr and O isotope ratios. Geochemical study shows that they are the product of anatexis of argillaceous rocks and fractional crystallization of magmas.

  • 岩体以高铝、低镁铁组分,高锶、氧同位素比值为特征,地球化学研究显示它们是泥质岩的深熔作用和岩浆的结晶分异作用所形成的产物。

  • 互联网摘选 2025-01-19 23:25:21

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