During their anaylsis, they extracted salts (water-soluble ions) that more than likely were deposited their by brine (salt water) as it evaporated.
(they; extracted; salts; T:During their anaylsis) (more than likely; were deposited; T:as it evaporated) (it; evaporated; )
they more than likely it
extracted were deposited evaporated
salts T:During their anaylsis
T:as it evaporated