河北省兴隆县花市铷矿床矿石特征研究

The Research of Ore Features in Hua Shi Rb Deposit,Xinglong County,Hebei Province

花市铷矿床位于河北省兴隆县境内,矿(化)体主要赋存于侏罗纪侵入的肉红色碱长花岗岩与灰白色碱长花岗岩中,并严格受岩性控制。据现有工作程度,初步估算该矿床的规模已达超大型,并伴生多种稀有金属元素(如锂、铌、钽、铍)。矿石的矿物成分主要为石英、钠长石、钾长石、(锂)云母,含少量石榴子石、磷灰石、铌钽铁矿等。矿石构造主要为块状构造,局部发育团块状、豆粒状及斑点状构造;矿石结构主要包括花岗结构、包含结构、半雪球结构、似斑状结构等。本矿区铷元素以类质同象的方式主要赋存于钾长石和(锂)云母中,在灰白色碱长花岗岩中,其分布率分别为73.7%和26.3%,其他矿物中含量甚微。该研究成果可为今后矿床的勘探、开发及矿产资源综合利用提供基础参考资料。

The Hua Shi Rb deposit is located in xinglong county,Hebei province.The orebody mainly occurs in the late Jurassic pale-red alkali-feldspar granite and grayish-white alkali-feldspar granite,which is affected by magmatic rocks.According to the current work,the deposit has reached super large scale,and associated with a variety of rare metal elements(Li,Nb,Ta,Be).The main minerals are albite,quartz,k-feldspar,(lithium)mica,and a small amount of garnet,apatite,etc.The ore textures are mainly of massive structure,and contain lumps,bean grains,spots,etc;The ore structures are granite structure,inclusions structure,semi snowballing structure,etc.The Rb element mainly occurs in k-feldspar and(lithium)mica in the form of isomorphism and its distribution rates of them in the gray-white alkali-feldspar granite are respectively 73.7%and 26.3%,while in other minerals is very small,This research results can provide basic reference materials for future exploration,development and comprehensive utilization of mineral resources.