Cpx-Opx: Fonarev, Graphchikov, 1991 <C>

Details

This sensor from TPF collection

Article Fonarev, V.I., Graphchikov, A.A. Two-pyroxene thermometry: a critical evaluation, 1991 [ref]
Callibration
Precision 50-100 °C
Ranges 600-900 °C
Renew sensors

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Source

source("utilities_tpf.r");

sensors.t.cpx_opx_fonarev_graphchikov_1991_c <- function(Cpx, Opx, P, usePFU=FALSE, ...){
    row_names <- paste0(Cpx$Name,"-", Opx$Name);

    if(!usePFU){
        Opx <- tpf.recalc_minaral("OPX",Opx);
        Cpx <- tpf.recalc_minaral("CPX",Cpx);
    }

    X <- (Cpx$Fe_p2_pfu + Cpx$Fe_p3_pfu) / (Cpx$Mg_pfu + Cpx$Fe_p2_pfu + Cpx$Fe_p3_pfu + Cpx$Ca_pfu);
    Y <- (Opx$Fe_p2_pfu + Opx$Fe_p3_pfu) / (Opx$Mg_pfu + Opx$Fe_p2_pfu + Opx$Fe_p3_pfu + Opx$Ca_pfu);
    Z <- Opx$MnO_wtp;
    C <- (Cpx$Fe_p2_pfu + Cpx$Fe_p3_pfu) / Cpx$Mn_pfu;
    O <- (Opx$Fe_p2_pfu + Opx$Fe_p3_pfu) / Opx$Mn_pfu;
    LK <- log(C / O);
    K <- 1.0221 - 0.2816 * LK;
    A <- 5.6066 * X + 13.6767 * X^2 - 23.6366 * X^3 - 60.7866 * X^4 - Y * (1 - (0.35 - X) * 0.01 * P);
    B <- ( - 9.9203 * X - 25.1949 * X^2 + 30.5070 * X^3 + 148.9344 * X^4) * K;
    G <- (6.9830 * X + 10.0505 * X^2 - 9.1097 * X^3 - 85.1719 * X^4) * K^2;
    N <- (2 * G * 1000 / ( - B + sqrt(B^2 - 4 * A * G))) - 273.15;

    T <- N;

    A <-  - 15.9135 * X + 112.8452 * X^2 - 232.7006 * X^3 + 156.3120 * X^4 - Y * (1 - (0.5 - X) * 0.01 * P);
    B <- (44.2986 * X - 313.6564 * X^2 + 660.4657 * X^3 - 446.5655 * X^4) * K;
    G <- ( - 27.1202 * X + 212.7500 * X^2 - 462.5763 * X^3 + 316.4015 * X^4) * K^2;
    M <- (2 * G * 1000 / ( - B + sqrt(B^2 - 4 * A * G))) - 273.15;

    T <- ifelse(T<850,T,(M + N) / 2)

    T <- ifelse(Z>4.0, T, NA);
    T <- ifelse(X>0.1, T, NA);
 
    T <- ifelse(T > 600 && T < 900, T, NA);

    return(data.frame(Name=row_names,P=P,T_calc=T));
}

sensors.t.cpx_opx_fonarev_graphchikov_1991_c.args <- function(){
    ars <- list();
    ars$minerals <- c("Cpx", "Opx");
    ars$ranges <- c("P");
    return(ars);
}

#sensors.t.cpx_opx_fonarev_graphchikov_1991_c.test <- function(){
#
#}
  • sensors/t/cpx_opx_fonarev_graphchikov_1991_c.txt
  • Последние изменения: 2018/11/12 15:08
  • (внешнее изменение)