Maniar {GCDkit}R Documentation

Maniar and Piccoli (1989)

Description

Plots data stored in 'WR' (or its subset) into Maniar and Piccoli's series of diagrams.

Usage

Maniar(plot.txt = getOption("gcd.plot.text"))

Arguments

plot.txt

logical, annotate fields by their names?

Details

Collection of six binary diagrams, based on major elements chemistry, developed by Maniar & Piccoli (1989) for tectonic discrimination of granitic rocks. Shand's (1943) diagram is also used. Diagrams are defined as follows:

x axis y axis
SiO2 K2O
SiO2 Al2O3
SiO2 FeO(T)/(FeO(T)+MgO)
100*MgO/(Al2O3+Na2O+K2O+FeO(T)+MgO) 100*FeO(T)/(Al2O3+Na2O+K2O+FeO(T)+MgO)
M and F proportion in the AFM system
100*CaO/(Al2O3+Na2O+K2O+FeO(T)+MgO+CaO) 100*(FeO(T)+MgO)/(Al2O3+Na2O+K2O+FeO(T)+MgO+CaO)
C and F proportion in the ACF system
A/CNK (molar) A/NK (molar)

Abbreviations used in diagrams represent granitoids from following geotectonic environments:

IAG Island Arc Granitoids
CAG Continental Arc Granitoids
CCG Continental Collision Granitoids
POG Post-orogenic Granitoids
RRG Rift-related Granitoids
CEUG Continental Epeirogenic Uplift Granitoids
OP Oceanic Plagiogranites

Maniar.png

Peralkaline, Metaluminous and Peraluminous rocks are defined in the last (Shand's) diagram.

Note

This function uses the plates concept. The individual plots can be selected and their properties/appearance changed as if they were stand alone Figaro-compatible plots.
See Plate, Plate editing and figaro for details.

Author(s)

Vojtěch Janoušek, vojtech.janousek@geology.cz

References

Maniar P D & Piccoli P M (1989) Tectonic discriminations of granitoids. Geol Soc Amer Bull 101: 635-643. doi: 10.1130/0016-7606(1989)101<0635:TDOG>2.3.CO;2

Shand (1943) Eruptive Rocks. John Wiley & Sons.

See Also

Plate, Plate editing, figaro, plotPlate,

Examples

    data(sazava)
    accessVar("sazava")
    
    # Plot the diagrams
    plotPlate("Maniar")

[Package GCDkit version 6.1 Index]