杨家杖子钼矿区燕山期侵入岩岩体含矿性的初步研究
来源期刊:中南大学学报(自然科学版)1982年第4期
论文作者:彭省临
文章页码:129 - 135
关键词:花岗斑岩; 杨家杖子; 燕山期侵入岩; 岩体含矿性; 初步研究; 岩石化学成分; 副矿物; 微量元素; 钾长石; 细粒花岗岩
摘 要:通过对杨家杖子燕山期各期侵入岩与辉钼矿矿化间时空关系的剖析及其岩石学、岩石化学、副矿物和微量元素等方面特征的研究,作者认为,本区燕山期侵入杂岩体晚期的花岗斑岩类小侵入体与钼矿化具有最密切的空间、时间和成因联系。花岗斑岩顶部围岩裂隙以及与碳酸盐围岩接触的内外接触带是钼矿富集的主要有利部位。并在分析总结的基础上,提出了本区今后的找矿方向。
Abstract:
By researching on the characteristics of petrology, petrochemistry, acce-ssory minerals, trace elements and the others of the granites in Yangjiazhang-zi, western Liaoning Province, it is concluded that there exists the closestrelationship between the molybdenum mineralization and the small intrusivemass especially on the later stage of the granitic intrusive complex. The gra-noporphyry top, the crevice in the country rock at the granoporphyry top,and the inside and outside contact zones between it and the carbonitic rocksare mainly favorable positions.
Finally, the author points out the direction of prospecting in the fieldbased on the analysis and summing-up.