Hbl-Pl: Spear, 1981 <B>

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source("utilities_tpf.r");

sensors.t.hbl_pl_spear_1981_b <- function(Hbl, Pl, P, ...){
    Pl <- tpf.recalc_minaral("PL",Pl);
    Hbl <- tpf.recalc_minaral("HBL",Hbl);

    X <- Pl$Na_pfu / (Pl$Na_pfu + Pl$K_pfu + Pl$Ca_pfu);
    Y <- Hbl$Ca_pfu;
    Z <- Hbl$Na_pfu;
    K <- Hbl$Mg_pfu + Hbl$Fe_p2_pfu + Hbl$Fe_p3_pfu + Hbl$Ti_pfu + Hbl$Cr_pfu + Hbl$Al_c4_pfu + Hbl$Al_c6_pfu + Hbl$Si_pfu;
    N <- 13 / K;
    Y <- Y * N;
    Z <- Z * N;
    if (Y<2) {
    if (Y + Z>2) {
    N <- Z - 2 + Y;
    T <- ( - 0.257 * P * 1000 + 7075) / ( - 1.9872 * log(N / (1 - N) / X) + 6.86) - 273;
    }
    if (Y + Z<2) {
    warning(" CANNOT BE USED FOR (CA+NA) IN HBL < 2");
    }
    }
    if (Y>2) {
    warning(" CANNOT BE USED FOR CA IN HBL > 2");
    }
    return(data.frame(Name=paste0(Pl$Name,"-", Hbl$Name),P=P,T_calc=T));
}

sensors.t.hbl_pl_spear_1981_b.args <- function(){
    ars <- list();
    ars$minerals <- c("Hbl", "Pl");
    ars$ranges <- c("P");
    return(ars);
}

#sensors.t.hbl_pl_spear_1981_b.test <- function(){
#
#}