Table 2.

Relevant results from the MSL QMS during EGA and informal stratigraphic units for samples

Label	BSW (nmol)	Reduced S PP* (%)	SO2 δ34S† (‰)	±1 SE	Stratigraphy
CB1	3	>99	−21	36	Sheepbed, Bradbury group
CB2	1.8	89	−28	14
CB3	1.3	89	−47	14
CB5	0.2	84	−40	10
CB6	0.1	ND	ND	ND
TP	0.2	<1	6	7	Pahrump Hills‡
BS1	0.4	78	3	6	Stimson formation
GH1	0.2	<1, 60	28	7
GB2	0.1	86, 57	ND	ND	Bagnold dunes
OU1	0.6	16	−31	9	Hartmann's‡
MB	0.2	74	ND	ND	Karasburg‡
DU	31.2	2	ND	ND	Blunts Point‡
ST	2.9	4	ND	ND	Pettegrove Point‡
HF	3.5	93	ND	ND	Jura‡ (including VRR for HF and RH)
RH	0.3	93	−18	40
KM	0.4	97	−21	19
GE1	0.6	7	20	4	Knockfarril Hill§
GE3	0.2	9	−14	5
HU	12.7	11	18	6	GG§
EB	5	73	−27	7	Stimson formation
GG	1.2	1	5	9	GG§
MA1	0.3	1	8	5	Knockfarril Hill§
BD	0.5	6	−9	6	Mercou§
PT	0.3	1	1	3	Pontours§

ND, not determined.

^*PP, posterior probability; Wong (5); Wong et al. (6).

^†Franz et al. (4); Wong (5).

^‡Members of Murray formation.

^§Members of Carolyn Shoemaker formation.