Canyons

And finally, you profile this, you cut grooves into it.

There's some grooves over here, you can see.

For instance, canyons have the same color as the cratered terrain.

We could mine those canyons.

Sound carries a long way in these canyons. They'll hear it.

It was in these submerged canyons that the only fossils of his species were found.

The only fossils of its species ever discovered... were found in a drag of the Hudson submarine canyons.

The continental margins are dissected in many places by submarine canyons.

The grooves become the kind of green lungs which give views, which give light, ventilation, make the building fresher.

And look at the amazing change in this one where that gully has completely healed using nothing but livestock mimicking nature.

The only signs of the ancient internal activity are canyons and dark polygons dark patches with complex shapes measuring from tens to hundreds of kilometers across.

Perhaps these have creased it, for you find some of their cases in the furrows, though they are deep and broad for them to make.

Gorgonians and other corals form dense populations in areas such as canyons and may have a highly diverse associated fauna.

There are many furrows in the sand where some creature has travelled about and doubled on its tracks and, for wrecks, it is strewn with the cases of caddis worms made of minute grains of white quartz.

Hot spots are microscopic rich areas of organic matter, typically related to living and dead microbial cells, floating in an otherwise nutrient poor ocean environment.35 Hot spots of diversity and biological activity in the ocean or pelagic zone occur in areas associated with coral reefs, oceanic islands, seamounts and other topographic and hydrographic areas such as canyons and fronts.

Although dumping of hazardous waste is prohibited under the Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter (the London Convention) and regional agreements, there have been proposals to dump sewage sludge, dredge spoils and other hazardous wastes in deep ocean trenches.