La-Y-Nb: Continental crust magmatic mixtures, Cabanis, 1989

Continental crust magmatic mixtures. NMORB - Normal mid-ocean-rige basalt, EMORB - Enriched mid-ocean-rige basalt, VAC - volcanic arc tholeiites, * - back arc basin, Cont. - continental.

Details

Reference Cabanis, B. Le diagramme La/10-Y/15-Nb/8 : unoutil pour la discrimination des series volcaniques et la mise en evidence des processus de melande et/ou de contamination crustale, 1989 [ref]
Data bulk
Input La_ppm, Y_ppm, Nb_ppm

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Source

require('ggtern');

classifydiag.la_y_nb_cabanis <- function (wtp_data, ...)
{  
ds <- selectNames(wtp_data,c('Name','La_ppm', 'Y_ppm', 'Nb_ppm'))

pts <- data.frame(Name=ds$Name,
                  X = ds$La_ppm/10,
                  Y = ds$Y_ppm/15,
                  Z = ds$Nb_ppm/8);

labels <- c("La/10", "Y/15", "Nb/8");
 
lines <- data.frame(X1 = c(0.00, 0.32, 0.43, 0.27, 0.12, 0.16, 0.22, 0.29),
                    Y1 = c(1.00, 0.68, 0.57, 0.56, 0.80, 0.68, 0.50, 0.28),
                    Z1 = c(0.00, 0.00, 0.00, 0.17, 0.08, 0.17, 0.28, 0.43),
                    X2 = c(0.62, 0.24, 0.34, 0.19, 0.38, 0.00, 0.00, 0.00),
                    Y2 = c(0.00, 0.62, 0.47, 0.60, 0.00, 0.76, 0.60, 0.42),
                    Z2 = c(0.38, 0.15, 0.20, 0.21, 0.62, 0.24, 0.40, 0.58));
 
marks  <- data.frame(Label=c("VAT", "NMORB",  "*", "EMORB", "Calc-alkali", "Cont.", "Alkaline", "Intercont. rifts"),
                          X=c(0.24,    0.07, 0.20,    0.10,          0.70,    0.45,       0.17,              0.18),
                          Y=c(0.70,    0.80, 0.63,    0.45,          0.10,    0.10,       0.20,              0.10),
                          Z=c(0.07,    0.17, 0.17,    0.43,          0.20,    0.45,       0.63,              0.72));
ret <- c();
ret$type <- "ternogram";
ret$points <- pts;
ret$labels  <- labels;
ret$lines <- lines;
ret$marks <- marks;
 
return(ret);
}
  • classifydiag/la_y_nb_cabanis.txt
  • Последние изменения: 2018/11/12 15:07
  • (внешнее изменение)