====== Grt-Crd: Holdaway, 1977 ======
 
=== Details ===

<WRAP center round info 60%>
This sensor from [[:about_tpf|TPF]] collection
</WRAP>

^ Article |  |
^ Collibration |  |
^ Precision |  |
^ Ranges |  |
^ Renew sensors |  |

<use:sensors.t.grt_crd_holdaway_1977>
<test:sensors.t.grt_crd_holdaway_1977>

<WRAP center round todo 60%>
  * <del>заголовок</del>
  * краткое описание
  * статья
  * ссылка
  * карточка
  * подробное описание
  * <del>код</del>
  * тест
</WRAP>

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

sensors.t.grt_crd_holdaway_1977 <- function(Grt, Crd, P, ...){
    Grt <- tpf.recalc_minaral("GRT",Grt);
    Crd <- tpf.recalc_minaral("CRD",Crd);

    X <- (Crd$Fe_p2_pfu + Crd$Fe_p3_pfu) / Crd$Mg_pfu;
    Y <- (Grt$Fe_p2_pfu + Grt$Fe_p3_pfu) / Grt$Mg_pfu;
    T <- (6150 + P * 1000 * 0.0303) / (2.69 - 1.98721 * log(X / Y)) - 273;
    return(data.frame(Name=paste0(Crd$Name,"-", Grt$Name),P=P,T_calc=T));
}

sensors.t.grt_crd_holdaway_1977.args <- function(){
    ars <- list();
    ars$minerals <- c("Grt", "Crd");
    ars$ranges <- c("P");
    return(ars);
}

#sensors.t.grt_crd_holdaway_1977.test <- function(){
#
#}
</Code>

{{tag> tpf Crd Grt }}