热分析法用于碳酸盐岩石中碳酸盐矿物的定量测定
APPLICATION OF THERMAL ANALYSIS TO THE QUALITATIVE AND QUANTITATIVE DETERMINATION OF CARBONATE MINERALS作者机构:长春地质学院
出 版 物:《地球化学》 (Geochimica)
年 卷 期:1979年第8卷第4期
页 面:331-339页
核心收录:
学科分类:0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学]
摘 要:Thermal-analysis technique has proved highly effective not only in the qualitative identification of various carbonate minerals in carbonate rocks, but also in the quantitiative determination of them. Both qualitative identification and quantitative determination of carbonate minerals in carbonate rocks can be made based upon the DTA curves produced by various carbonate minerals during their decomposition at different temperatures, and the weight loss of CO2 escaped .from carbonate minerals respectively By comparing the results from artificially prepared sampling tests and the quantitative thermal analysis on Liaoning Sinian carbonate rocks with those from chemical calculation,we can see that the error is as small as below 2.50%. And thus, this technique is considered as one valid method with the advantages of simplibility in performance and reliability in the qualitative identification and quantitative determination of corbonate minerals in carbonate rocks.