Assertion: aquifer | /r/HasProperty | formed
Facets:
Source sentences:
text: The lower aquifers of Gippsland were formed from 65 to 34 million years ago.
text: These aquifers were formed between 4 million and 38 million years ago and are made up of several formations that are connected and act as one aquifer in each basin..
text: The lower aquifers in the region were formed between 19 and 65 million years ago.