2025-05-09 22:14 浏览次数 1
太古代巖石
archaean rocks are rare because the exposed rock mass diminishes markedly with age due to erosion, burial, and subduction.
太古代巖石非常少,因为随着侵蚀、埋葬、潜没,地表巖石显着的减少了。
however, contrary to previous views, there is no isotopic evidence that archaean rocks are present in the mashan complex.
然而,与以前的认识相反,麻山杂巖不存在具有太古宙基底的同位素证据。