Petrology

1989 Edition

Abbreviations

  • D. R. Bowes
Reference work entry
DOI: https://doi.org/10.1007/0-387-30845-8_1

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)

IPB

Intraplate basalt(s)

LIL

Large-ion lithophile...

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Copyright information

© Van Nostrand Reinhold 1989

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  • D. R. Bowes

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