... today were once abundant. So Earth's ancient oceans are a good place to go if we want ... to cope with changing abundances of elements. Studying the ancient oceans also stretches our minds to imagine what ...
... .8 billion years. By analysing the isotopes of chromium in iron-rich sediments formed in the ancient oceans, the team has found that a rise in atmospheric oxygen ...
... million years ago.) The researchers' model for the ancient ocean argues for a stratified marine basin ... periods of time. "This is an entirely new interpretation of ancient ocean chemistry," said Chao Li, a research ...
... on early Mars. While the notion of a large, ancient ocean on Mars has been repeatedly proposed and challenged ... cubic kilometers, of water. The amount of water in the ancient ocean would have formed the equivalent of an 1 ...
... . Before that, most scientists believed until recently, the ancient oceans were relatively oxygen-poor for the preceding ... . Understanding the ancient causes and consequences can provide essential clues to what the future has in store for our oceans ...
... and found that a large, rapid shift in the chemistry of the world's ancient oceans occurred around the extinction event ... in which they were deposited. If so, they can be used to study changes in the chemistry of ancient oceans. In separate, related work, the team ...
... million years ago, Kennedy believes. The abruptness of the glacial termination, along with changes in ancient ocean chemistry and chemical deposits ...
More than 400 million years ago, sea temperatures plummeted to almost present-day levels, causing a hospitable environment for a rise in species, scientists say.
... of fossils indicates that 525 million years ago marine animals congregated in Earth`s ancient oceans, most likely for migration, according to an international team ...
... remain about how the ocean water circulated at that time. Measuring a chemical tracer in samples of ancient fish ... of carbon dioxide and warm temperatures. Understanding such ancient greenhouse climates is important for predicting what ...
(PhysOrg.com) -- There's a powerful source of energy humming away inside a laboratory at the University of Alberta. The energy is ultra-violet light, and it packs the same spectrum of rays that kept ...
Better known as end-bringers than life-givers, asteroid impacts may have forged the chemicals essential for life in Earth's ancient oceans.
A collision of extraterrestrial objects and Earth’s ancient oceans could have produced raw materials for life
In the search for life beyond Earth, scientists "follow the water" to find places that might be hospitable. However, every home gardener knows that plants need more than water, or even sunshine. They ...
Ancient ocean Goliath; crucial "testing" time for forests; more
