Coals and marginal marine rocks of the Mungaroo Formation overlying the Locker Shale could also be source rocks.
(the Mungaroo Formation; overlying; the Locker Shale) (Coals and marginal marine rocks of the Mungaroo Formation; could also be; source rocks)
the Mungaroo Formation Coals and marginal marine rocks of the Mungaroo Formation
overlying could also be
the Locker Shale
source rocks