摘要
李家堡子铌钽矿位于华北地台北缘东段,含矿花岗伟晶岩侵位于太古宇鞍山群通什村组变质岩系,形成于吕梁期,受NE、NW两组断裂控制.含铌钽花岗伟晶岩属于白云母型,岩石类型属铝过饱和,岩石化学成分富钠低钾钙铁镁.稀有元素中Ta最为富集,Ta2O50.0005%～0.44%,是国内同类型矿床中含钽品位最高的矿床.目前已探获332+333级别矿石量达到中型储量,有望成为大型铌钽矿床.
The Lijiapuzi niobium-tantalum deposit in Xinbin County, Liaoning Province is tectonically located in the eastern section of the northern margin of North China Platform. During Luliang period, the ore-bearing granitic pegmatite, which was controlled by NE- and the NW-trending faults, intruded into the Archean metamorphic rock series. The granitic pegmatite, belonging to muscovite type, oversaturated with aluminium, is characterized by high sodium and low potassium, calcium, iron and magnesium contents. Tantalum is the most enriched rare element in the rock, with Ta content of 0.0005% to 0.44%. With the highest tantalum ore grade among the known domestic deposits of the same type and the ore reserves of medium magnitude at 332＋333 level proved by newly exploration, the deposit has the potential to reach the level of large deposit.
出处
《地质与资源》
CAS
2013年第1期20-24,共5页
Geology and Resources
基金
辽宁省地质勘查基金(试点)项目"辽宁省新宾县平顶山地区铌钽矿普查"(编号[2008]31)
辽宁省本级资补费项目(编号[2009]4)资助
关键词
铌钽矿床
花岗伟晶岩型
辽宁省
niobium-tantalum deposit
granitic pegmatite type
Liaoning Province
