Sentences with phrase «exposed shelf areas»

During this time, precipitation and meltwater seeped into the exposed shelf areas and filled water tables, which were then covered up by the ocean as sea levels rose again.

Not exact matches

«If protective ice shelves were suddenly lost in the vast areas around the Antarctic margin where reverse - sloping bedrock (where the bed on which the ice sheet sits deepens toward the continental interior, rather than toward the ocean) is more than 1,000 meters deep, exposed grounding line ice cliffs would quickly succumb to structural failure as is happening in the few places where such conditions exist today,» the researchers point out.

Possible mechanisms include (iv) fertilization of phytoplankton growth in the Southern Ocean by increased deposition of iron - containing dust from the atmosphere after being carried by winds from colder, drier continental areas, and a subsequent redistribution of limiting nutrients; (v) an increase in the whole ocean nutrient content (e.g., through input of material exposed on shelves or nitrogen fixation); and (vi) an increase in the ratio between carbon and other nutrients assimilated in organic material, resulting in a higher carbon export per unit of limiting nutrient exported.

Establishing time - limited Special Areas for Scientific Study in newly exposed marine areas following ice - shelf retreat or collapse in Statistical Subareas 48.1, 48.5 andAreas for Scientific Study in newly exposed marine areas following ice - shelf retreat or collapse in Statistical Subareas 48.1, 48.5 andareas following ice - shelf retreat or collapse in Statistical Subareas 48.1, 48.5 and 88.3

The area was faulted about 1.8 million years ago as sea level fell, exposing the older shelf, and the consequence of that was the creation of a high ridge along the shelf edge that became the site of coral growth.