投稿时间：2020-01-05
修订日期：2020-04-27
网络发布日期：2020-07-13
中文摘要:岩石中矿物组分和含量对岩性划分、沉积环境判断及物源方向分析等方面均有非常重要的意义。岩石中各元素百分含量与矿物组成和演化有着密切的关系，通过确定元素含量与矿物含量之间的转换系数，依托转换系数这一桥梁，可以将元素含量转换成矿物含量。文章结合岩芯元素含量结果及全岩测试数据资料，通过对比"逐级分离"法计算结果与全岩计算结果，其结果表明：①转换系数具有一定的专一性；②该方法与多元回归方法相比，该方法可以依据较少的数据确定该地区的转换系数；③利用"逐级分离"法获得的计算结果，较符合该地区的转换系数，可以应用于岩性识别与分类。
Abstract:The mineral composition and content in the rock are of great significance to lithological division, sedimentary environment judgment, and source direction analysis. The percentage content of each element in the rock is closely related to the mineral composition and evolution. By determining the conversion coefficient between the element content and the mineral content, relying on the bridge of the conversion coefficient, the element content can be converted into the mineral content. This paper combines the results of core element content and whole rock test data to compare the calculation results of the "gradual separation" method with those of the whole rock. The results are as follows:① Conversion coefficients have some specificity; ② Compared with the multiple regression method, this method can determine the conversion coefficient of the region based on less data; ③ By using the "gradual separation" method to calculate the results, the conversion coefficients in the region can be more suitable and can be applied to lithologic identification and classification.
keywords:geology element content mineral content conversion coefficient mineral component characte-ristics
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基金项目:本文得到国家自然基金（编号：41672119）和国家科技重大专项（编号：2016ZX05024-003，2016ZX05058-001）联合资助
引用文本：
徐吉丰,尹太举,韩雅坤,钱文蹈,张娟,杜晓峰,官大勇.2020.基于岩石元素含量确定岩石矿物组分的方法[J].矿床地质,39(3):477~485XU JiFeng,YIN TaiJu,HAN YaKun,QIAN WenDao,ZHANG Juan,DU XiaoFeng,GUAN DaYong.2020.Method for determining rock mineral composition based on element content[J].Mineral Deposits39(3):477~485
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