文章摘要
胡海燕,杨蓉,张丽倩,祖文龙.陕西汉中地区蛇纹石玉的矿物成分与成因分析[J].矿产勘查,2018,9(6):1108-1112
陕西汉中地区蛇纹石玉的矿物成分与成因分析
Analysis on mineral composition and genesis of serpentine jade in Hanzhong, Shaanxi
投稿时间:2018-05-30  
DOI:
中文关键词: 汉中玉  蛇纹石玉  矿物成分
英文关键词: Hanzhong jade, serpentine jade, mineral composition, cause analysis
基金项目:
作者单位
胡海燕 陕西国际商贸学院,咸阳 712064 
杨蓉 陕西国际商贸学院,咸阳 712064 
张丽倩 陕西国际商贸学院,咸阳 712064 
祖文龙 陕西国际商贸学院,咸阳 712064 
摘要点击次数: 137
全文下载次数: 149
中文摘要:
      陕西汉中地区发现了较大储量的汉中玉矿床,汉中玉种类繁多,其中以蛇纹石玉储量最大。通过对汉中玉中蛇纹石玉手标本及镜下薄片的观察和研究,总结出了蛇纹石玉的矿物组成特征,其主要矿物成分为蛇纹石,个别样品中发现有方解石、角闪石的蚀变残余物。电子探针分析显示,蛇纹石玉石中的SiO2含量为41.5%~44.5%,MgO含量为35.4%~39.7%,其他氧化物含量较低。结合已有地质资料及显微镜观察可推测,汉中玉中蛇纹石玉形成于中酸性岩浆与碳酸岩盐接触的矽卡岩环境中。
英文摘要:
      Large deposits of Hanzhong jade have been found in Hanzhong area in Shaanxi province.There are many kinds of jade in Hanzhong, among them, serpentine jade reserves the most.The basic Mineralogical characteristics of Hanzhong jade were summarized through observation and study of hand specimens and microscopical thin section of jade.Under the microscope, the composition minerals of serpentine jade observed mainly are serpentine, and calcite minerals and serpentine form metasomatic structure can be found in a few individual samples. Electron probe analysis showed that the content of SiO2 in serpentine jade was in the range of 41.5% - 44.5%, and the content of MgO was 35.4%-39.7%, other ingredients are low. From the existing geological data and microscopic observation, it can be inferred that the serpentine jade in Hanzhong is formed in the silicate environment between intermediate-acid magma contacting with carbonate rock.
查看全文   查看/发表评论  下载PDF阅读器
关闭