论文部分内容阅读
从收集到的、向国内外公开发行的二十多种刊物与论文集来看,1983年我国岩石学研究内容丰富、涉及面广,质量也有一定的提高。现综述如下。一、火成岩在25种刊物中,火成岩论文有近百篇,而超镁铁质深成岩与火山岩的论文占其中的三分之二。其研究地区集中在青藏高原及其毗邻的“三江”地带与我国东部中-新生代火山岩分布区。绝大多数论文都是从板块构造的观点来探讨地壳与上地幔岩石圈的演化或板块缝合线的形成机制。超镁铁质深成岩的研究主要是青藏高原及“三江”地区的阿尔卑斯型超镁铁
From the collection of more than 20 kinds of publications and collections collected to the public at home and abroad, the petrology research in our country was rich in content in 1983, covering a wide range of areas with a certain improvement in quality. Are summarized below. I. Igneous rocks Among the 25 journals, there are nearly 100 papers of igneous rocks, while papers of ultramafic plutons and volcanic rocks account for two thirds of them. Its research areas are concentrated in the Tibetan Plateau and its adjacent “Sanjiang” zone and the Mesozoic-Cenozoic volcanic rock distribution in eastern China. Most papers discuss the evolution of crust and upper mantle lithosphere or the formation of plate suture from plate tectonics. The study of ultramafic plutons is mainly the Alpine-type ultramafic