C1 Chondrite, Sun-McDonough, 1989

C1 Chondrite.

Использовать Проверить

require('ggplot2');

cmp <- read.csv("constants_oceanic_basalts_compositions.csv", sep=";", stringsAsFactors=F);

spdgrams.ree_c1_chondrite <- function(ppm_data, el_order = NULL)
{

ns <- el_order;

if (is.null(el_order))
{
ns <- c('Cs', 'Rb', 'Ba', 'Th', 'U', 'Nb', 'Ta', 'La', 'Ce', 'Pb', 'Pr',
        'Sr', 'Nd', 'Zr', 'Hf', 'Sm', 'Eu', 'Gd', 'Tb', 'Dy', 'Y', 'Ho',
        'Er', 'Tm', 'Yb', 'Lu');
}

pmsc <- c();

for (n in ns)
  pmsc <- c(pmsc, subset(cmp, element == n)$c1_chondrite);

ds <- selectNames(ppm_data,c(paste0(ns,'_ppm')));

names(ds) <- ns;

ret <- c();

values <- cbind(ppm_data$Name, rowApply(`/`,ds,pmsc));
names(values)[1] <- 'Name';

ret$values <- values;
ret$grades <- ns;
ret$labels <- c('REE', 'Sample/C1 Chondrite');

return(ret);
}