The sediments that make up these rocks were deposited in a variety of marine environments, ranging from deep ocean basins to continental shelf areas.

Cambodia also claims 48,000 km of shelf area.

While the paper dealt only with areas from Vancouver to northern California, other continental shelf areas may be experiencing similar effects.

Besides outlining what is legal in continental shelf areas, it also dictated what could not be done in Article 5.

The drainage in the shelf area cut a series of small ravines, leaving terraces between them.

Phytoplankton over the shelf area face two fates: They sink to the bottom or are consumed by zooplankton.

Abundant in cold and temperate shelf areas, it forms large schools near the surface.

A continuing decrease in Laurentian continental shelf area is recorded at the same time as the extinctions, suggesting major environmental upheaval.

This made huge shelf areas part of its territory.

Most marine life is found in coastal habitats, even though the shelf area occupies only seven percent of the total ocean area.