Once in a while a monster plume may break through the surface and spout an immense flood of molten basalt or other rock, many geologists believe.

Our only objection to your space station is the immense flood of unattached personnel who will come here to build it - drifters, unmarried men, military persons - such an influx would throw Megaera into confusion.

House-sized boulders lay strewn about like gravel, washed there by the immense floods that occurred every sixteen years, when the Spark heated this side of the planet and melted the oxygen and nitrogen caps.

His theories of how they were formed required short but immense floods (500 cubic miles of water), for which Bretz had no explanation.

And compared to the broad southern valley that lay behind them, the narrow way to the north was strewn with boulders that looked as if they had been carried down from the mountains by some immense flood.

The immense floods scoured the Columbia Plateau as the water raced toward the ocean, resulting in the Channeled Scablands topography that exists today across Central and Eastern Washington.

One summer, as he was living in Ames and working as a research assistant in a solid-state physics lab, the city was actually turned into an island for a couple of days by an immense flood.

An immense flood of East Pakistani refugees, between 8 and 10 million according to various estimates, fled across the border into the Indian state of West Bengal.

The walls were broken and eroded, as if they had been drowned beneath an immense, catastrophic flood.

They were valleys, perhaps, cut by immense floods.