Assertion: middle aquifer | /r/MadeOf | sand
Facets:
value: mostly
type: DEGREE
Source sentences:
text: The middle aquifers consist of mostly sand and are buried and confined by the upper aquifers except on the eastern side of Port Phillip Bay where they occur at the surface.
text: The middle aquifer consists primarily of the Farrington Sand Member of the Cretaceous Raritan Formation and surficial Holocene and Miocene sands and gravels in its outcrop area.