Grt-Ep: Perchuk, Aranovich, 1979

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source("utilities_tpf.r");

sensors.t.grt_ep_perchuk_aranovich_1979 <- function(Grt, Ep, P, ...){
    Ep <- tpf.recalc_minaral("EP",Ep);
    Grt <- tpf.recalc_minaral("GRT1",Grt);

    X <- Grt$Fe_p3_pfu / (Grt$Fe_p3_pfu + Grt$Al_pfu);
    Y <- Ep$Fe_p3_pfu / (Ep$Fe_p3_pfu + Ep$Al_pfu);
    A <- 37.3 * Y^3 - 20.047 * Y^2 - 22.8998 * Y^4;
    B <- 16966.5 * Y^2 - 30188.4 * Y^3 + 18266.7 * Y^4 + 0.193606 * P * Y^2;
    R <- 0.193606 - 0.387213 * Y + 0.193606 * Y^2;
    C <- 7961.4 + R * P - 33933 * Y + 62248.6 * Y^2 - 54543.9 * Y^3 + 18266.7 * Y^4;
    D <- 40.0942 * Y - 75.9957 * Y^2 + 67.832 * Y^3 - 22.9 * Y^4 - 9.031;
    T <- (1365.17 - 279 * P + C - B) / (1.987 * log(X * (1 - Y) / (1 - X) / Y) - 0.2143 - D + A) - 273;
    return(data.frame(Name=paste0(Ep$Name,"-", Grt$Name),P=P,T_calc=T));
}

sensors.t.grt_ep_perchuk_aranovich_1979.args <- function(){
    ars <- list();
    ars$minerals <- c("Grt", "Ep");
    ars$ranges <- c("P");
    return(ars);
}

#sensors.t.grt_ep_perchuk_aranovich_1979.test <- function(){
#
#}