IsoplotR (version 0.8)

central: Calculate U-Th-He (and fission track) central ages and compositions

Description

Computes the geometric mean composition of a set of fission track or U-Th-He data and returns the corresponding age and fitting parameters.

Usage

central(x, ...)
"central"(x, ...)
"central"(x, ...)
"central"(x, mineral = NA, ...)

Arguments

x

an object of class UThHe or fissiontracks

...

optional arguments

mineral

setting this parameter to either apatite or zircon changes the default efficiency factor, initial fission track length and density to preset values (only affects results if x$format = 2.)

Value

a list containing the following items:

Additionally, if x has class UThHe:

OR, if x has class fissiontracks:

Examples

data(examples)
print(central(examples$UThHe)$age)