摘要
利用大兴安岭地区1/5万高精度航放资料,对圈定的HFU-09号航放异常开展了综合查证,采用的工作手段包括剖面、面积性查证及深部钻探验证。在钻孔中发现了低品位铀矿体、铀矿化体、铅锌矿化体及铌钽矿找矿线索。根据查证结果认为,1:5万航空物探调查圈定的航放异常与地面伽玛能谱测量圈定的U、Th异常对应性较好,异常再现性较明显。区内岩石破碎铁染发育部位一般存在矿化。在对赋存于花岗岩中的航放异常进行查证时,需结合岩石的具体矿化蚀变特征进行贵金属、有色金属矿产的评价,以期发现多金属矿床。
Using the greater 1 ： 50000 high-precision airborne radioactive,daa in the Hinggan Mountains region, this work has verified the detected HFU -09 aeroradioactive anomalies The work methods included profile and,area examination,and deep drilling confirmation. In drilling holes,low grade uranium ore bodies, uranium mineralization, lead-zinc mine mineralization and niobium tantalum ore prospecting clues were discovered. The. results show that these airborne radioactive anomalies correspond well to the U and Th anomalies determined by gamma-ray spectroscopy on the ground, with good con- sistence. There exist prevail mineralization at the localities of much iron dissemination in broken rock. When such verification is performed to granite, al- ternation features of rock should be taken into account for evaluation of preeious and nonferrous metals so as to find polymetallic ore deposits.
出处
《地质与勘探》
CAS
CSCD
北大核心
2016年第3期556-563,共8页
Geology and Exploration
基金
中国地质调查局与黑龙江省政府联合实施的部省合作项目(12120113054900)资助
关键词
大兴安岭
航放异常
铀矿体、铀矿化体
综合找矿
Daxinganling, airborne radioactive anomalies, uranium ore body, uranium mineralization, comprehensive prospecting
