elemIso {GCDkit} | R Documentation |
Plots a diagram of a selected whole-rock geochemical parameter vs initial Sr
isotopic ratios or initial ε(Nd) for selected samples.
elemIso(x = WR, xlab = NULL, what = NULL, GUI = FALSE,...)
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 |
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.
None.
SrNd.r
Vojtěch Janoušek, vojtech.janousek@geology.cz
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
The actual plotting is done by the function plotWithLimits.
srnd, reciprocalIso, epsEps, ageEps, isochron
data(blatna_iso) accessVar("blatna_iso") elemIso(xlab = "Sr.y", what = "87Sr/86Sri")