煌斑岩(lamprophyre)是富含自形的镁铁质矿物斑晶(主要是黑云母和角闪石)的超基性-中性浅成岩。其组成成分多为长石和与斑晶相同的暗色矿物,尤其是云母。 大多数形成岩脉、岩墙和岩床,极少数呈火山通道相(岩管)或火山渣锥,规模不大,但分布广泛。
中国有色金属学报 2013 年9 月 2672 煌斑岩(Lamprophyre)指含云母斑晶的暗色岩。煌 斑岩的分类一直存在争议,ROCK
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Ⅰ-typeclinopyroxene xenocrysts, amphibole xenocrysts and phlogopite megacrysts contained in thehost lamprophyre were crystallized from main magma in deep source.
赋存于寄主煌斑岩中的Ⅰ型单斜辉石捕虏晶、角闪石捕虏晶和金云母巨晶均为寄主煌斑岩浆在深部结晶的产物。
参考来源 - 杨子板块北缘北大巴山地幔岩捕虏体研究·2,447,543篇论文数据,部分数据来源于NoteExpress
钻石是稀有火成岩(称为煌斑岩和金伯利岩)中偶尔出现的一种成分,其年代测定方法从未令人满意。
Diamonds, an occasional component of rare igneous rocks called lamproites and kimberlites, have never been dated satisfactorily.
其中辉绿岩和煌斑岩是典型的幔源岩,花岗伟晶岩则是典型的壳源岩。
The diabase and lamprophyre are typical mantle source rock while the granite pegmatite is typical crustal source rock.
指出煌斑岩具有较强的还原性能,是金沉淀富集的良好地球化学屏障。
Having a large reducing capacity, the lamprophyre is the best geochemical barrier for thedeposition and concentration of gold.
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