来宾县二叠纪菊花石研究  

ELEMENTARY STUDY ON CHRYSANTHEMUM STONE FROM PERMIAN IN LAIBIN OF GUANGXI

作　　者：张刚生[1,2] 李家珍[1,2] 

机构地区：[1]中国科学院广州地球化学研究所 [2]中国有色金属工业总公司矿产地质研究院

出　　处：《广西地质》1999年第2期39-42,共4页Guangxi Geology

摘　　要：来宾县菊花石围岩的主要成分为ＣａＯ、ＣＯ２、ＳｉＯ２和ＭｇＯ，总量达９５．９１％，微量元素Ｓｒ明显富集，平均值大于１０００×１０－６。Ｘ－射线衍射分析和Ｘ－射线能谱仪分析表明，来宾菊花石的原生矿物为菱锶矿。因此来宾菊花石不同于湖南浏阳菊花石，是一种新的菊花石类型。CaO、CO 2、SiO 2 and MgO,which add up to 95 91%, are the main chemical contents of wallrocks of chrysanthemum stone in Laibin county and the microelements of wallrocks are characterized by high Sr content which mean value is more than 1 000×10 -6 The X-ray powder diffraction analysis and X-ray energy spectra analysis show that the main primary mineral of chrysanthemum stone in Laibin is strontianite, So the chrysanthemum stone in Laibin, a new type of chrysanthemum stone,is apparently different from that in Liuyang of Hunan

关 键 词：菊花石 菱锶矿 二叠纪 化学成分 广西 

分 类 号：P578.71[天文地球—矿物学]