摘要
马拉维坎伊卡铌钽矿是碱性花岗岩中的烧绿石型铌钽矿床,矿体围岩是中性组份的片麻岩。矿化只发生在碱性花岗岩侵入体中,而在片麻岩围岩中无矿化,主要矿脉和碱性花岗岩走向与围岩片麻理方向相同,推断碱性花岗岩可能是围岩长英质矿物部分重熔形成。
The canika niobium in Malawi is a type of greenstone-type niobium deposit in alkaline granite, and the ore body surrounding rock is a neutral group of gneiss. Mineralization occurs only in alkaline granite intrusion, but had no mineralization in gneiss rock mass, the main vein and alkaline granite to gneissic reason in the same direction, with surrounding rock mass may be concluded that alkali granite rock felsic minerals formed partial remelting.
出处
《世界有色金属》
2017年第22期169-169,171,共2页
World Nonferrous Metals
关键词
马拉维坎伊卡
碱性花岗岩
烧绿石型铌钽矿床
kanica
Malawi
Alkaline granite
Greenstone type niobium tantalum deposit
