摘要
本文概述了构造岩浆判别的地球化学原理和制图的基本原则,综述了近年来这一研究领域的新进展,强调在判别时应紧密结合地质实际,并注重数据的精度、有效判别元素的选择和构造环境的双重性,这种方法适用于元古代火山岩的判别,认为利用多重元素的丰度比值蛛网图和岩石特征类型的专家系统来进行构造岩浆判别是行之有效的。
This paper gives a general account of the geochmical principles and the fundamental rules for diagram making of tectonomagmatic discrimination. The paper lays stress on tectonomagmatic discrimination to geological problems, precision of data, choice of effective trace elements, and straddling of discrimination. When applied to discrimination of protero-zoic volcanic rocks, this method proves that a ratio spiderdiagram of multiple elements works well with an Expert System for Characterization of Rock Types for tectonomagmatic discrimination.
出处
《地质科技情报》
CAS
CSCD
北大核心
1992年第3期73-78,84,共7页
Geological Science and Technology Information
关键词
岩浆
构造
地球化学
tectonomagmatic discrimination, geochemical method, Expert System
