花岗岩研究的误区——关于花岗岩研究的思考之五
Problems of granites: some crucial questions on granite study (5)
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摘要: 本文在对花岗岩四大基石(混合作用、结晶分离作用、构造环境和源区)问题分析的基础上,指出花岗岩研究存在的三大误区: (1)不恰当地仿效玄武岩的理论和研究方法,忽视了花岗岩的复杂性。(2)不恰当地用板块构造学说解释大陆花岗岩问题。板块构造是地球演化到一定阶段的产物,并成功解释了与板块边界相联系的岩浆活动,但是,它不能解决主要来源于大陆的花岗岩的地质问题。(3)太过重视花岗岩的地球化学研究而忽视了对花岗岩基础地质的研究。作者指出,地球化学方法在花岗岩中的使用应当是有限制的,花岗岩研究陷入误区是我们缺少扎实的基础研究、对板块构造的理解不深和对花岗岩复杂性认识不足等三个方面的原因造成的。文中还批评了学术界存在的人云亦云的奴性思想,指出它严重地阻碍了我们的创新思维,是当前亟待改进和克服的。Abstract: Based on the discussions for the four footstones of granite study (magma mixing, fractional crystallization, tectonic environment and source of magma), three major misunderstanding aspects in the granite research are discussed in this paper: (1) improperly imitate the theory for the study of basalts and neglect the complexity of granite; (2) inappropriately interpret the origin of continental granites with the theory of the plate tectonics, which successfully explains the magmatism associated with the plate boundary, but cannot resolve the continental geology problems; (3) Overrate geochemical study of granite but ignore the basic geological background. The authors point out that the application of geochemistry in the research of granite should be restricted. The three major misunderstanding aspects resulted from insufficient study on geological background, superficial understanding for the plate tectonics theory and under-evaluation of the complexity of granites. Moreover, this article criticizes the slavish thought in academia and indicates that it makes a huge obstacle to innovative thinking, which is urgent to be solved at present.
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Key words:
- Granite /
- Misunderstanding /
- Basalt /
- Plate tectonics /
- Geochemistry
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