| 单词 | AKF diagram |
| 释义 | AKF diagram [¦ā¦kā¦ef `dī·ǝ´gram] PETROLOGY A triangular diagram showing the chemical character of a metamorphic rock in which the three components plotted are A = Al2O3 + Fe2O3 + (CaO + Na2O), K = K2O, and F = FeO + MgO + MnO. |
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