verb (overlies, overlying; past overlay; past participle overlain)[with object]
Lie on top of: soft clays overlie the basalt figurative the national situation was overlain by sharp regional differences
More example sentences
- North of it lies a more permeable medium in the form of sand and gravel overlying silty clay with gravel.
- Here, the upper mudstone of the TST is erosively overlain by 3 m of bioturbated, clayey sandstone and mudstone.
- The discontinuous clay bed is overlain by the top conglomerate, bed 4.
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