| 正确应用痕量元素协变图形判别岩浆作用类型 |
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| 引用本文： | 迟效国.正确应用痕量元素协变图形判别岩浆作用类型[J].吉林大学学报(地球科学版),1992(1). |
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| 作者姓名： | 迟效国 |
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| 作者单位： | 长春地质学院地质系 |
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| 摘 要： | 对主要岩浆作用过程中痕量元素协变方程和实例的分析表明,正确选择元素做图是应用协交图形判别岩浆作用类型的前提,并非任意元素-元素、比值-元素和比值-比值协变图形都能有效判别岩浆作用过程。文中给出了不同形式的协交图形中元素的选择标准,指出强相容元素与强不相容元素的元素-元素协变图形对判别岩浆分离结晶作用和部分熔融作用更为有效和实用,同时也是判别岩浆同化混染作用的重要图解。
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| 关 键 词： | 痕量元素 岩浆作用 协变图形 |
CORRECT APPLICATION OF TRACE-ELEMENT COVARIANCE PLOTS TO DETERMINING THE TYPES OF MAGMA PROCESS |
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| Chi Xiaoguo.CORRECT APPLICATION OF TRACE-ELEMENT COVARIANCE PLOTS TO DETERMINING THE TYPES OF MAGMA PROCESS[J].Journal of Jilin Unviersity:Earth Science Edition,1992(1). |
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| Authors: | Chi Xiaoguo |
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| Institution: | Department of Geology |
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| Abstract: | Analysis of covariance equations of trace element indicates that selecting elements correctly is a kind of prerequisite for applying covariance plots to determine magma process. Not all the element,ratio-element and ratio-ratio covariance diagrams of trace elements is consistent with those of theoritical one. This paper offers the standards through which one can select elements in different covariance plots. The covariance plots of incompatible elements versus strong compatible elements are efficient and important only in determining fractional crystallization and partial melting,but also in judging the magma source of partial melting process. |
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| Keywords: | trace-element magma precess covariance plots |
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