论构造地球化学图解的局限性

本文从实践和理论两方面讨论了应用构造地球化学图解分辨玄武质岩石产出的大地构造环境这一方法所存在的问题,认为J. A. Pearce等给出的构造地球化学图解,在很大程度上,是一种岩性分辨图解,图解分辨中存在不确定性的根本原因是控制玄武质岩石形成的条件参数与构造环境并不完全存在一一对应的映射关系,应用图解应持谨慎态度。

On the Limitation of Tectonogeochemical Diagrams

Discussing practically and theoretically the tectonogeochemical diagrams given by J. A. Pearce and others to identify basaltoids forming tectonic setting, the paper suggests, the diagrams are mainly the distinquishion diagrams of rock types, and the principle reason why the diagrams can't certainly identify the tectonic setting is that there isn't complete mirror relationship between the tectonic setting and basalt-forming conditions. The diagrams should be used with caution.