摘要
通过对南金山—狼娃山金成矿带金矿床成矿地质背景、矿床特征、成矿标志及控矿因素等诸方面分析认为,该成矿带金成矿作用集中在海西中晚期,具明显的区域性成矿特征,金矿集中分布在下石炭统扫子山组、白山组火山岩和海西期中酸性(石英闪长岩、花岗闪长岩)侵入岩体内外接触带中。金成矿受含矿建造、岩浆活动和构造控制,据其成矿和分布特点划分了矿床预测类型(矿床式),建立了区域找矿模型。
Through analyzing the gold deposit metallogenic background, deposit characteristics, metallogenic mark and ore-controlling factors of gold metallogenic belt in Nanjin Mountain-Langwa Mountain, it suggests that the gold mineralization in the metallogenic belt concentrated in the middle and late Hercynian period with obvious regional metallogenic characteristics, and the gold deposit is mostly developed inside and outside the contact zone of Saozishan Formation and Baishan Formation volcanic rock in Carboniferous System and Hercynian intermediate-acid intrusive bodies （quartz diorite, granodiorite）. The gold deposit is controlled by ore-bearing formation, magmatism and structure. According to the metallogenic and distribution features, deposit prediction types are classified and regional metallogenic model is established.
出处
《甘肃地质》
2009年第4期29-33,共5页
Gansu Geology
基金
中国地调局甘肃省区域成矿规律研究及矿产预测评价(编码:1212010633901)部分成果
关键词
甘肃北山
金矿特征
矿床预测类型
成矿作用特征
Beishan area in Gansu Province
gold deposit characteristics
ore deposit prediction type
char-acteristics of mineralization
作者简介
刘东晓（1976～），男，工程师，从事地质矿产勘查及矿山开发工作。
