摘要
上黑龙江成矿带位于大兴安岭北部,是黑龙江省重要的金及多金属勘查基地。以1∶20万水系沉积物测量数据为基础,对其成矿元素地球化学特征进行初步分析,并对各地质单元含矿性进行初步探讨。通过对成矿元素的分布特征、相关性分析,Au总体丰度值高,后期变异强度大,为区内主攻矿种,其次为Ag元素;Au与As、Sb相关性较好,二者可以作为金矿找矿的指示元素;区内重要的赋矿地层为中侏罗统二十二站组和下白垩统甘河组,为下步金矿找矿工作的重点部位。
Located in northern Great Khingan Mountains, Upper Heilongjiang metallogenic belt is an important gold and polymetallic exploration target. Based on the 1 ： 200 000 stream sediment survey, the paper made a prelimina- ry analysis on geochemical features and discussion about gold ore in each geologic unit. Through study of element dis- tribution features and correlation analysis, the paper thinks overall content value of gold is high with a large late varia- tion intensity; gold is the main mineral resource in the region followed by Ag; Au is well correlated with As and Sb which makes them good indicator elements for gold prospecting; Both Jurassic clastic rocks of the Ershi＇erzhan forma- tion and lower Cretaceous volcanic rocks of the Ganhe formation were regarded as important prospecting targets in the next stage of work.
出处
《黄金》
CAS
2016年第6期17-23,共7页
Gold
基金
中国地质调查局项目(12120115041801)
关键词
上黑龙江成矿带
水系沉积物测量
地球化学特征
含矿性
Upper Heilongjiang Metallogenic Belt
stream sediment survey
geochemical feature
ore-bearing po- tential
