Table 11.

Compositions of standards for which spectra are shown in Figs. 40–41

	SiO2	TiO2	Al2O3	Fe2O3T	MnO	MgO	CaO	Na2O	K2O	LOI	Cr	Ni	Rb	Sr	Ba	Li
Ni-magnetite	1.07	0.001	0.08	0.04	0.03	46.21	0.17	0.02	<0.01	50.58	40	2.25%	<2	4	5
JA-2	56.42	0.66	15.41	6.26	0.11	7.6	6.29	3.11	1.8	2.65	450	134	71	134	315	29.1
NAu-2	48.7	0.595	4.53	31.76	0.02	0.77	1.96	0.7	0.13	11.69

Abundances are in wt.% for major elements, and in ppm for trace elements (Cr, Ni, Rb, Sr, Ba, Li) except where noted. LOI = loss on ignition