Maniar {GCDkit} | R Documentation |
Plots data stored in 'WR
' (or its subset) into Maniar and Piccoli's series
of diagrams.
Maniar(plot.txt = getOption("gcd.plot.text"))
plot.txt |
logical, annotate fields by their names? |
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 |
Peralkaline, Metaluminous and Peraluminous rocks are defined in the last (Shand's) diagram.
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.
Vojtech Janousek, vojtech.janousek@geology.cz
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.
Plate, Plate editing, figaro, plotPlate,
#plot the diagrams plotPlate("Maniar")