Dataset:  arctic_sediment.csv

Source: N.C. Martinez, R.W. Murray, G.R. Dickens, and M. Molling (2009).
"Discrimination of Sources of Terrigenous Sediment Deposited in the 
Central Arctic Ocean Through the Cenozoic," Paleoceonography, Vol. 24,
PA1210, doi:10.1029/2007PA001567, 2009.

Description:
Results of 2 laboratory studies of Arctic Sediment at 64 sites.
Study 1: depth1-Zr where Al-P are wt(%) and Ba-Zr are ppm.
Study 2: depth2-U where all vars are ppm