Sentences with phrase «shallow oceans after»

By studying iron extracted from cores drilled in rocks similar to these in Karijini National Park, Western Australia, UW — Madison researchers determined that half of the iron atoms had originated in shallow oceans after being processed by microbes 2.5 billion years ago.

By studying iron extracted from cores drilled in rocks similar to these in Karijini National Park, Western Australia, UW - Madison researchers determined that half of the iron atoms had originated in shallow oceans after being processed by microbes 2.5 billion years ago.

Not exact matches

But Jaramillo and his colleagues have proposed a new model: most of Panama existed as it does today 12 million years ago, with shallow, narrow channels connecting the two oceans periodically after that.

I don't know about heat sloshed under the poles but I need a slosh of scotch heat after this; since you know Bob well you will know he has discussed a reemergence mechanism to explain how the ocean can put heat into the atmosphere in an El Nino year yet keep warming itself; and despite the fact that the oceans are a complex eddying mess the fact remains that AGW is a top down heater; if the oceans were going to be heated by AGW a shallow ocean would be heating; but it ain't:

After measuring water quality and going through thick bacterial slime and dead marine animal bodies on the ocean floor, the researchers found extremely low oxygen levels in greater depths while there was still high oxygen in shallow waters where corals were healthy — a symptom of a dead zone.