| Accordingly it might well be held to mark the boundary of Australia's continental shelf. |
| Mammoth and mastodon teeth have been dredged from 40 sites along the continental shelf off the eastern US in water up to 120 m deep. |
| They are most commonly found over upwellings or the continental shelf, rarely close to shore. |
| Currently, oil and gas development seaward of the continental shelf is unlikely. |
| Because Australia has a broad continental shelf it lobbied to have this zone extend to the outer edge of the margin. |
| When at sea, they concentrate over the continental shelf or over upwellings of cold, nutrient-rich water. |
