| LaurentSource {GCDkit} | R Documentation | 
Assigns data for a Laurent et al. (2014) triangular 
diagram into Figaro template (list 'sheet') and appropriate values 
into 'x.data' and 'y.data'.
LaurentSource()
Triangular diagram of Laurent et al. (2014, Fig. 6) with apices: Al2O3/(FeOt+MgO), 3CaO and 5K2O/Na2O (all in wt. %), serves to distinguish prospective sources of granitoids. It is based on compilation of a large database of experimental data - see Laurent et al. (2014 and references therein) for the citations of the original works.
 
 
The following sources can be distinguished:
| Low-K mafic rocks | 
| High-K mafic rocks | 
| Tonalites | 
| Metasediments | 
| sheet | list with Figaro Style Sheet data | 
| x.data, y.data | Al2O3/(FeOt+MgO) - 3CaO - 5K2O/Na2O values recalculated into two dimensions | 
Jean-François Moyen, jfmoyen@gmail.com
Oscar Laurent, oscarlaurent86@gmail.com
Laurent O, Martin H, Moyen JF, Doucelance R (2014) The diversity and evolution of late-Archean granitoids: evidence for the onset of 'modern-style' plate tectonics between 3.0 and 2.5 Ga. Lithos 205:208-235 doi: 10.1016/j.lithos.2014.06.012
    sampleDataset("blatna")
    
    # Plot the diagram
    selectSubset("SiO2>60")
    plotDiagram("LaurentSource",FALSE)