pairing: Pair isotopic ratios for multi-element calibration

In pvermees/simplex: Data Reduction Software for Secondary Ion Mass Spectrometry

Pair isotopic ratios for multi-element calibration

Description

Pairs oxide/element ratios with element/element ratios for multi-element calibration, typically in the context of U-Pb and Th-Pb geochronology

Usage

pairing(lr, stand)

Arguments

lr	an object of class logratios
stand	an object of class stand

Value

an object of class pairing, i.e. a data frame with the following columns:

X: the parent oxide/parent ratio (e.g., 'UO/U238', 'ThO/Th'),

Y: the parent (e.g. 'U238', 'Th232'),

C (optional): the common Pb ratio (e.g. 'Pb204/Pb206', 'Pb204/Pb208')

slope: either 'auto' or a numerical value if the calibration is to use a fixed slope.

Examples

## Not run: 
data('SHRIMP_UPb',package='simplex')
st <- standard(preset='Temora')
dc <- drift(x=SHRIMP_UPb)
lr <- logratios(x=dc)
cal <- calibration(lr=lr,stand=st,prefix="TEM")
plot(cal)

## End(Not run)

pvermees/simplex documentation built on Sept. 2, 2023, 12:40 p.m.