superincumbent

päällä lepäävä puhekieltä lie Lying or resting on something else; overlying.
1843, w:Thomas_Carlyle Thomas Carlyle, :w:Past and Present (book)|Past and Present, book 3, ch. I, Phenomena

… alas, on the contrary, what troops and populations of Phantasms, not God-Veracities but Devil-Falsities, down to the very lowest stratum, — which now, by such superincumbent weight of Unveracities, lies enchanted in St. Ives’ Workhouses, broad enough, helpless enough!

The older Verrucano must have travelled to its present position as it slid and ground its way on the back of the oppressed Lochseiten limestone, which buckled and churned under the superincumbent load.