摘要
针对南岭科学钻探-1孔(NLSD-1)100～1 000 m井段,利用测井磁化率和井中三分量磁测资料及岩性编录资料研究了其地层不同岩性的磁化特征,同时对井中三分量磁异常进行了分析和解释。不同岩性的磁化率从高到低依次为变质细屑沉凝灰岩、变质粉屑沉凝灰岩、多种矿化变质细屑沉凝灰岩、硅化变质细屑沉凝灰岩、硅化变质粉屑沉凝灰岩、多种矿化变质粉屑沉凝灰岩、凝灰质板岩、多种矿化凝灰质板岩;井中三分量磁异常主要是由钻孔旁侧磁性体和变质沉凝灰岩引起的。
Taking NLSD-1 borehole （ 100 - 1 000 m） of Nanling Scientific Drilling as the object, magnetization char- acteristics of different lithologies are researched by utilizing magnetic susceptibility of well logging, borehole magnetic tri- component data and record data of lithology. Meantime, anomalies of borehole magnetic tri-component are analyzed and in- terpreted. Magnetic susceptibilities of different lithologies diversified from high to low are： metamorphic fine-cutting sedi- mentary tuff,metamorphic dusty-cutting sedimentary tuff,multi-mineralized metamorphic fine-cutting sedimentary tuff, silici- fied metamorphic fine-cutting sedimentary tuff, silieified metamorphic dusty-cutting sedimentary tuff, multi-mineralized meta- morphic dusty-cutting sedimentary tuff, tuffaceous slate and muhi-mineralized tuffaceous slate; Anomalies of borehole magnetic tri-eomponent are principally caused by magnetic body beside borehole and metamorphic sedimentary tuff.
出处
《金属矿山》
CAS
北大核心
2013年第1期107-109,157,共4页
Metal Mine
基金
深部探测技术与实验研究专项(编号:201011048)
国家自然科学基金项目(编号:41274185)
中央高校基本科研业务费项目(编号:2011PY0189)
关键词
南岭科学钻探
多金属矿
磁化率
井中三分量磁测
Nanling scientific drilling, Multi-metallic deposit, Magnetic Susceptibility, Borehole tri-component magnet- ic survey
