Mesonorm {GCDkit} | R Documentation |
Calculates eine bessere Mesonorm for granitoids of Mielke & Winkler (1979).
Mesonorm(WR, GUI = FALSE, precision = getOption("gcd.digits"))
WR |
a numerical matrix; the whole-rock data to be normalized. |
GUI |
logical, is the function called from the GUI? |
precision |
precision of the result. |
This method of norm calculation should yield mineral proportions close to the actual mode of granitoid rocks. The calculated components are:
Orthoclase, Albite, Anorthite, Quartz, Apatite, Magnetite, Hematite, Ilmenite, Biotite, Amphibole, Calcite, Corundum, Rest
If desired, the function plots the Q'-ANOR diagram of
Streckeisen & Le Maitre (1979)
using the function QANOR
.
A numeric matrix 'results
'.
Vojtěch Janoušek, vojtech.janousek@geology.cz
Mielke P & Winkler HGF (1979) Eine bessere Berechnung der Mesonorm fuer granitische Gesteine. Neu Jb Mineral, Mh 471-480
Streckeisen A & Le Maitre RW (1979) A chemical approximation to the modal QAPF classification of the igneous rocks. Neu Jb Mineral, Abh 136: 169-206
data(sazava) accessVar("sazava") Mesonorm(WR)