From about 25 to 20 million years ago, changes associated with mountain formation throughout the Gulf coast caused streams to bring deposits of sand, clay, marl, phosphatic boulders, and limestone on top of the Florida aquifer.
(changes; associated; with mountain formation throughout the Gulf coast) (changes associated with mountain formation throughout the Gulf coast; caused; streams to bring deposits of sand; T:about 25 to 20 million years ago) Context(changes associated with mountain formation throughout the Gulf coast caused,List([39, 114))):(streams; to bring; deposits of sand)
changes associated with mountain formation throughout the Gulf coast caused,List([39, 114))
changes changes associated with mountain formation throughout the Gulf coast streams
associated caused to bring
with mountain formation throughout the Gulf coast
streams to bring deposits of sand T:about 25 to 20 million years ago
deposits of sand