elemIso {GCDkit}R Documentation

Binary plot of a WR geochemical parameter vs isotopic ratio

Description

Plots a diagram of a selected whole-rock geochemical parameter vs initial Sr isotopic ratios or initial ε(Nd) for selected samples. elemIso.png

Usage

    elemIso(x = WR, xlab = NULL, what = NULL, GUI = FALSE,...)

Arguments

x

numeric matrix with isotopic data to be recalculated.

xlab

variable name or a formula for the x axis; if NULL a dialogue is displayed.

what

name of the desired isotopic parameter.

GUI

logical; is the function called from the GUI?

...

optional parameters to the underlying function plotWithLimits.

Details

The variable to be plotted as x axis is based on whole-rock geochemical data. If not specified upon the function call, it is selected using the function 'selectColumnLabel'. In the specification of the variable can be used also an arithmetic expression, see calcCore for the correct syntax.

The plotted isotopic parameters (y axis) can be one of:

Menu item Explanation
87Sr/86Sri Initial Sr isotopic ratios
143Nd/144Ndi Initial Nd isotopic ratios
EpsNdi Initial ε(Nd) values
1 stg DM model ages (Goldstein et al. 1988) Single-stage DM Nd model ages
1 stg DM model ages (Liew & Hofmann 1988) Single-stage DM Nd model ages
2 stg DM model ages (Liew & Hofmann 1988) Two-stage DM Nd model ages

If called from GUI, the samples can be selected based on combination of three searching mechanisms (by sample name/label, range or a Boolean condition) - see selectSamples for details.

Value

None.

Plugin

SrNd.r

Author(s)

Vojtěch Janoušek, vojtech.janousek@geology.cz

References

Goldstein SL, O'Nions RK & Hamilton PJ (1984) A Sm-Nd isotopic study of atmospheric dusts and particulates from major river systems. Earth Planet Sci Lett 70: 221-236 doi: 10.1016/0012-821X(84)90007-4

Liew TC & Hofmann AW (1988) Precambrian crustal components, plutonic associations, plate environment of the Hercynian Fold Belt of Central Europe: indications from a Nd and Sr isotopic study. Contrib Mineral Petrol 98: 129-138 doi: 10.1007/BF00402106

See Also

The actual plotting is done by the function plotWithLimits.

srnd, reciprocalIso, epsEps, ageEps, isochron

Examples

    data(blatna_iso)
    accessVar("blatna_iso")
    
    elemIso(xlab = "Sr.y", what = "87Sr/86Sri")

[Package GCDkit version 6.1 Index]