| 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.
Vojtěch Janoušek, 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,
sampleDataset("sazava")
# Plot the diagrams
plotPlate("Maniar")