====== Grt-Opx-Pl-Qtz: Perkins, Newton, 1981 ======
 
=== Details ===

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This sensor from [[:about_tpf|TPF]] collection
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<use:sensors.p.grt_opx_pl_qtz_perkins_newton_1981>
<test:sensors.p.grt_opx_pl_qtz_perkins_newton_1981>

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=== Source ===
<Code linenums lang-r>
source("utilities_tpf.r");

sensors.p.grt_opx_pl_qtz_perkins_newton_1981 <- function(Grt, Opx, Pl, Qtz, Temp, ...){
T <- Temp;
    Opx <- tpf.recalc_minaral("OPX",Opx);
    Pl <- tpf.recalc_minaral("PL",Pl);
    Grt <- tpf.recalc_minaral("GRT",Grt);

    A <- (1 - (Opx$Al_c4_pfu + Opx$Al_c6_pfu) / 2 - Opx$Ti_pfu - Opx$Cr_pfu - Opx$Fe_p3_pfu) * Opx$Mg_pfu;
    B <- (1 - Opx$Mn_pfu - Opx$Ca_pfu - Opx$Na_pfu) * Opx$Mg_pfu;
    C <- (1 - (Opx$Al_c4_pfu + Opx$Al_c6_pfu) / 2 - Opx$Ti_pfu - Opx$Cr_pfu - Opx$Fe_p3_pfu) * Opx$Fe_p2_pfu;
    D <- 1 - (Opx$Al_c4_pfu + Opx$Al_c6_pfu) / 2 - Opx$Ti_pfu - Opx$Cr_pfu - Opx$Fe_p3_pfu + 1 - Opx$Mn_pfu - Opx$Ca_pfu - Opx$Na_pfu;
    X <- Grt$Ca_pfu / (Grt$Ca_pfu + Grt$Mg_pfu + Grt$Fe_p3_pfu + Grt$Fe_p2_pfu + Grt$Mn_pfu);
    Y <- Grt$Mg_pfu / (Grt$Ca_pfu + Grt$Mg_pfu + Grt$Fe_p3_pfu + Grt$Fe_p2_pfu + Grt$Mn_pfu);
    F <- (Grt$Fe_p3_pfu + Grt$Fe_p2_pfu) / (Grt$Ca_pfu + Grt$Mg_pfu + Grt$Fe_p2_pfu + Grt$Fe_p3_pfu + Grt$Mn_pfu);
    Z <- Pl$Ca_pfu / (Pl$Ca_pfu + Pl$Na_pfu + Pl$K_pfu);
    G <- Pl$Na_pfu / (Pl$Ca_pfu + Pl$Na_pfu + Pl$K_pfu);
    TT <- T + 273.15;
    K <- exp((3300 - 1.5 * TT) * (Y^2 + Y * F) / (1.9872 * TT));
    L <- exp((3300 - 1.5 * TT) * (X^2 + X * F) / (1.9872 * TT));
    K <- X * K;
    L <- Y * L;
    A <- A * B / D / D;
    M <- exp(G^2 * (2025 + 2 * Z * (6746 - 2025)) / (1.9872 * TT));
    M <- M * Z * (1 + Z)^2 / 4;
    P <- (3944 + 13.07 * TT + 3.5038 * TT * log(K * L^2 / A / M)) / 1000;
    warning(" ACCURACY +-1.5 KBAR");
    return(data.frame(Name=paste0(Pl$Name,"-", Grt$Name,"-", Opx$Name),Temp=Temp,P_calc=P));
}

sensors.p.grt_opx_pl_qtz_perkins_newton_1981.args <- function(){
    ars <- list();
    ars$minerals <- c("Grt", "Opx", "Pl", "Qtz");
    ars$ranges <- c("Temp");
    return(ars);
}

#sensors.p.grt_opx_pl_qtz_perkins_newton_1981.test <- function(){
#
#}
</Code>

{{tag> tpf Pl Grt Opx }}