Opx-Cpx: Mercier, 1984 <A>

ONLY FOR LHERZOLITES AND HARZBURGITES, EQ.4 (empirical when using all available CMS and CMAS experimental data)

Details

This sensor from TPF collection

Article	Mercier, Jean -Claude C., Benoit, Vincent, Girardeau, Jacques Equilibrium state of diopside-bearing harzburgites from ophiolites: Geobarometric and geodynamic implications, 1984 [ref]
Collibration	51 reversed experimental data in the CMS system, plus additional data in the CMAS system and for some selected natural samples
Precision
Ranges	5-30 kbar, 800-1400 °C
Renew sensors

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Source

source("utilities_tpf.r");

sensors.p.opx_cpx_mercier_1984_a <- function(Opx, Cpx, usePFU=FALSE, ...){
   
    row_names = paste0(Cpx$Name,"-", Opx$Name);
 
    if(!usePFU) {
        Opx <- tpf.recalc_minaral("OPX",Opx);
        Cpx <- tpf.recalc_minaral("CPX",Cpx);
    }
    
    CO <- Opx$Ca_pfu;
    NO <- Opx$Na_pfu;
    CC <- Cpx$Ca_pfu;
    NC <- Cpx$Na_pfu;
    CAOP <- CO / ((1 - NO) * (1 - NC));
    CACP <- CC / ((1 - NO) * (1 - NC));
    KF <- CAOP / (1 - CACP);
    P <- 12.79 / (KF + 0.006) - 22.9;

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

sensors.p.opx_cpx_mercier_1984_a.args <- function(){
    ars <- list();
    ars$minerals <- c("Opx", "Cpx");
    ars$ranges <- c();
    return(ars);
}

#sensors.p.opx_cpx_mercier_1984_a.test <- function(){
#
#}

tpf, Cpx, Opx, AP igroup, fixed