Ab, An, Di, En, Fa, Fo, Fs, Hy, Ne, Or, Q, Wo, etc. Calculated normative minerals (see Petrochemical calculations)
al, alk, fm, si, ti, etc. Niggli numbers (values) (see Petrochemical calculations)
- ACF :
-
A = Al2O2 ⊕ Fe2O3 – (Na2O ⊕ K2O); C = CaO; F = FeO ⊕ MgO ⊕ MnO; values plotted as a triangular diagram
- AFM :
-
A = Na2O ⊕ K2O (Na ⊕ K); F = FeO ⊕ Fe2O3 (Fe2⊕ ⊕ Fe3⊕); M = MgO (Mg); values plotted as a triangular diagram
- A‵KF:
-
A‵ = Al2O3 ⊕ Fe2O3 – (Na2O ⊕ K2O ⊕ CaO); K = K2O, F = FeO ⊕ MgO ⊕ MnO; values plotted as a triangular diagram
- CAB :
-
Calc-alkaline basalt(s)
- CIPW :
-
Cross, Iddings, Pearson and Washington (norm) (see Petrochemical calculations)
- CMAS :
-
CaOMgOAl2O3SiO2 system
- CPB :
-
Continental plateau basalt (s)
- CPX :
-
Clinopyroxene
- DI :
-
Differentiation index (q.v.)
- DSDP :
-
Deep Sea Drilling Project
- HFSE :
-
High-field-strength elements (e.g., Ti, Zr, Y)
- I-type :
-
Granites whose magma source regions consisted mainly of igneous material
- IAB :
-
Island-arc basalt(s)...
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© 1989 Van Nostrand Reinhold
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Bowes, D.R. (1989). Abbreviations . In: Petrology. Encyclopedia of Earth Science. Springer, Boston, MA. https://doi.org/10.1007/0-387-30845-8_1
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DOI: https://doi.org/10.1007/0-387-30845-8_1
Publisher Name: Springer, Boston, MA
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