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物源分析是盆地和造山带研究的一项重要内容,它对分析沉积盆地与造山带的相对位置、演化过程及相互作用等方面意义重大。分析物源是研究沉积体系和岩相古地理格局的前提和基础,在一定程度也是描述微相和砂体展布的总体格局,以及对砂体进行预测和评价的依据。针对目前物源分析的几种方法,重点对比古流向方法、重矿物法、以及锆石研究方法等的方法,指出物源分析中尚需解决的地质问题。物源分析应注意将多种方法相结合,才能得出合理的结论。
The analysis of provenance is an important part of the study of the basin and the orogenic belt. It is of great significance in analyzing the relative position, evolution and interaction of the sedimentary basin and the orogenic belt. The source of analytes is the prerequisite and foundation for the study of sedimentary system and lithofacies palaeogeography. To a certain extent, it also describes the general pattern of microfacies and sandbody distribution and the basis for the prediction and evaluation of sandbody. In view of the current methods for analyzing provenance, the methods of ancient flow direction, heavy mineral method and zircon research method are emphasized, and the geological problems that need to be solved in the source analysis are pointed out. Source analysis should pay attention to a combination of methods to arrive at reasonable conclusions.