摘要
鸡笼山岩体是鸡笼山金铜矿的成矿母岩，本文通过对其成岩石英包裹体特征的研究，探索其成因矿物学；还通过对其颜色、形态、电子顺磁共振波谱及各类元素含量特征与程家垄岩脉的对比研究，探索其找矿矿物学意义。以颜色呈暗灰色、Ａｕ＞１０×１０－９、Ａｇ＞０，５×１０－６、Ｋ／Ｎａ＜５、Ｒｂ／Ｓｒ＞０．１、ＬＲＥＥ／ＨＲＥＥ＜７、Ｓｍ／Ｎｄ＞０．２、Ａｌ－Ｏ－＞１×１０１４Ｓｐｉｎｓ／ｍｇ、Ｆｅ＋＋＋＞５×１０１３Ｓｐｉｎｓ／ｍｇ等作为含金岩体的找矿矿物学标志。
The genetic mineralogy of the quartz in Jilongshan rock mass which is the metallogenic mother rock of Jilongshan copper - gold deposit has been approached through studying the inclusion characteristics in the quartzs. In the meantime, by way of comparative study with of the quartz in Chengjialong dike on colour, morphology, EPR spectrum and contents of various elements, the prospecting mineralogy application of the quartz in Jilongshan rock mass has been discussed and concluded that the dark grey quartz with element contents of An > 10 ×10 -9, Ag > 0. 5×10 -6, K/Na< 5, Rb/Sr > 0. 1, LREE/HREE < 7, Sm/Na > 2, Al - O > 1 ×1014 spins/mg and Fe+ + + >5 ×1013 spins/mg can be used as a criterion of prospecting mineralogy for gold - bearing rock mass
关键词
鸡笼山
岩体
成岩石英
成因矿物学
找矿矿物学
Jilongshan rock mass genetic quartz genetic mineralogy prospecting mineralogy
