Kfs-Pl: Powell, Powell, 1977

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source("utilities_tpf.r");

sensors.t.kfs_pl_powell_powell_1977 <- function(Kfs, Pl, P, ...){
    Pl <- tpf.recalc_minaral("PL",Pl);
    Kfs <- tpf.recalc_minaral("KFS",Kfs);

    X <- Kfs$K_pfu / (Kfs$K_pfufs$Ca_pfu + Kfs$K_pfufs$Na_pfu + Kfs$K_pfu);
    Y <- Kfs$K_pfufs$Na_pfu / (Kfs$K_pfufs$Ca_pfu + Kfs$K_pfufs$Na_pfu + Kfs$K_pfu);
    Z <- Pl$Na_pfu / (Pl$Ca_pfu + Pl$Na_pfu + Pl$K_pfu);
    T <- (( - X^2 * (6330 + 0.093 * P * 1000 + 2 * Y * (1340 + 0.019 * P * 1000))) /      (1.9872 * log(Y / Z) + X^2 * (1.54 * Y - 4.63))) - 273;
    return(data.frame(Name=paste0(Pl$Name,"-", Kfs$Name),P=P,T_calc=T));
}

sensors.t.kfs_pl_powell_powell_1977.args <- function(){
    ars <- list();
    ars$minerals <- c("Kfs", "Pl");
    ars$ranges <- c("P");
    return(ars);
}

#sensors.t.kfs_pl_powell_powell_1977.test <- function(){
#
#}