Table 5.

Average APXS Unit Data Used for the Compilation in Figure 19 With Bradbury Sandstone Rock Data (First Three Entries) Are From Siebach et al. [2017], and Estimated Mars Crust Is From McLennan [2012]

	SiO2	Al2O3	TiO2	FeO	MgO	CaO	Na2O	K2O	Cr2O3	MnO	Ni	Zn	P2O5	SO3	Cl	Br
Group Average
Bradbury_FineSandstone_Avg	41.27	7.36	0.98	22.86	9.59	5.93	2.03	1.86	0.52	0.53	346.35	2509.65	0.79	4.78	1.08	670.15
Bradbury_Sandstone_Avg	42.71	8.71	0.89	20.44	8.56	6.16	2.67	1.63	0.53	0.39	300.27	1077.23	0.76	5.16	1.14	234.18
Stimson_Avg	43.69	9.62	0.92	18.67	8.57	6.43	2.81	0.44	0.40	0.37	440.05	359.03	0.89	5.80	1.26	228.41
All_Gale_Fines_Avg	44.92	9.15	0.90	19.04	9.03	7.01	2.55	0.49	0.38	0.40	562.76	277.16	0.80	4.49	0.66	42.48
Bagnold_Avg	46.58	8.88	0.78	19.22	9.92	6.91	2.34	0.42	0.33	0.38	630.22	181.11	0.75	2.88	0.49	46.44
Estimated Mars crust (volatile free)	49.30	10.50	0.98	18.20	9.06	6.92	2.97	0.45	0.38	0.36	337.00	320.00	0.90
Group Standard Deviation
Bradbury_FineSandstone_StDev	1.98	1.28	0.15	2.41	1.84	0.77	0.96	1.17	0.18	0.12	100.71	1549.11	0.12	1.49	0.29	661.47
Bradbury_Sandstone_StDev	2.57	1.33	0.11	2.55	1.02	0.43	0.94	0.81	0.15	0.09	88.34	487.72	0.19	1.89	0.33	258.97
Stimson_StDev	2.58	1.38	0.05	2.28	1.17	0.59	0.21	0.07	0.08	0.07	88.13	140.12	0.18	2.62	0.42	131.98
All_Gale_Fines_StDev	1.85	0.80	0.16	1.60	1.33	0.28	0.37	0.12	0.10	0.04	137.56	124.45	0.20	1.63	0.19	25.47
Bagnold_StDev	1.18	0.92	0.07	1.37	1.69	0.37	0.36	0.06	0.07	0.03	160.63	44.56	0.04	0.36	0.06	25.92