Of the two samples collected for this study, sample SM-1, stratigraphically lowest, is a relatively low aluminum basalt (Table 6) while sample SM-2 is a dacite.
(the two samples; collected; ) (sample SM-1; is; a relatively low aluminum basalt) (sample SM-2; is; a dacite)
the two samples sample SM-1 sample SM-2
collected is is
a relatively low aluminum basalt
a dacite