ocean floor

Clouds are full of microbes; they have been found in deep mines and on the ocean floor.

Each of its missions will last 24 hours, with 16 hours spent tracking the ocean floor.

It had advanced sonar—aimed not at the ocean floor but at other subs and shipping—and drew a blank.

Searchers have to find what is called the debris field—to locate and map every piece of the airplane on the ocean floor.

In 2012, a conservation team financed by Bezos unearthed the lost engines from the Apollo 11 mission on the ocean floor.

The ocean floor, in general, is the part of the earth's surface where strata are constantly being laid down.

I was as it were one of a little swarm of would-be reef builders looking back at the teeming slime upon the ocean floor.

At times they are deep under water, and they form part of the teeming life of the ocean floor.

By the sinking of the ocean floor, it is held that the sea level is lowered around the earth, thus giving rise to emerged lands.

The tundra is a part of this ocean floor, and it too doubtless contains much gold, perhaps even very much.