And always to areas where the ocean floor dropped dramatically; great fissures in the rocky crust.

The prolonged eruptions, moreover, had once more enriched the upper layers of the rocky crust with metals.

She pointed at one of the chunks of rocky crust that seemed to have structures clinging to it.

He had been informed by the Gal-Enn that the installations deep within the planet's rocky crust had started into operation.

The shock waves, with wavelengths of hundreds of miles, traveled around the world, lifting and dropping the earth's rocky crust by at least half an inch.

Magma on Earth is made of liquid rock, which is less dense than the solid rocky crust through which it erupts.

The canyon follows faults that formed when the rocky crust of the Death Valley region began stretching just a few million years ago.

We smelted more of the rocky crust around the Shack and put it back as slag.

Not at all like Earth, where the oceans fill basins in the rocky crust and the gravity's too light to squeeze the air into liquid.

They were blocked by a sealed passageway thirty-three meters inside the rocky crust.