hf_lines: Produce CHUR and DM lines
In detzrcr: Compare Detrital Zircon Suites

Calculate CHUR and DM lines used for epsilon-Hf vs. age and 176/177Hf vs. age plots.

1	hf_lines(range = c(0, 4560), plot_type = "ehf", constants)

`range`	range over which to calculate lines
`plot_type`	'ehf' = epsilon-Hf; any thing else gives 176/177Hf
`constants`	vector of constants which must be in the order decay constant 176Lu, 176/177Hf CHUR, 176Lu/177Hf CHUR, 176/177Hf DM and 176Lu/177Hf DM

Griffin, W., Pearson, N., Belousova, E., Jackson, S., van Achterbergh, E., O'Reilly, S. and Shee, S. 2000. The Hf isotope composition of cratonic mantle: LAM-MC-ICPMS analysis of zircon megacrysts in kimberlites. Geochimica et Cosmochimica Acta 64(1), 133-147.

Soderlund, U., Jonathan Patchett, P., Vervoort, J.D. and Isachsen C.E. 2004. The 176Lu decay constant determined by Lu-Hf and U-Pb isotope systematics of Precambrian mafic intrusions. Earth and Planetary Science Letters 219, 311-324.

Bouvier, A., Vervoort, J.D. and Jonathan Patchett P. 2008. The Lu-Hf and Sm-Nd isotopic composition of CHUR: Constraints from unequilibrated chondrites and implications for the bulk composition of terrestrial planets. Earth and Planetary Science Letters 273, 48-57.

detzrcr documentation built on July 23, 2020, 9:06 a.m.