Whalen_failure3 {GCDkit} | R Documentation |
Trace-element discrimination of arc, slab failure, and A-type granitic rocks of Whalen and Hildebrand (2019).
Whalen_failure3(plot.txt = getOption("gcd.plot.text"), filter.SiO2 = TRUE)
plot.txt |
logical; annotate the individual fields by textual labels? |
filter.SiO2 |
logical; should be plotted only samples with SiO2 = 55-70 wt. %? |
Suite of five Nb + Y vs. trace-element ratio plots (Nb/Y, La/Yb, Gd/Yb, Ta/Yb and Sm/Yb) for discrimination of geotectonic environment of granitoid rocks (Whalen and Hildebrand, 2019 - fig. 7. It discriminates between (I-type) Arc, Slab failure and A1- and A2-type granitoid compositions.
sheet |
list with Figaro Style Sheet data |
x.data |
x coordinates |
y.data |
y coordinates |
For non-A type samples, only those with ASI < 1.1 and SiO2 = 55-70 wt. % are plotted, as suggested in the original paper. This eliminates S-types, cumulate mafic arc, and felsic slab failure samples. The samples having Y + Nb > 60 and Yb + Ta > 6 ppm are A-types and these are plotted even if SiO2 > 70 wt.
If filter.SiO2=TRUE
, the SiO2 filter is skipped.
Vojtěch Janoušek, vojtech.janousek@geology.cz
Whalen JB, Hildebrand RS (2019) Trace element discrimination of arc, slab failure, and A-type granitic rocks. Lithos 348-349: 105179. doi: 10.1016/j.lithos.2019.105179
sampleDataset("blatna") # plot the diagrams plotPlate("Whalen_failure3")