Science news articles about 'ancient oceans'
ASU professor 'follows the elements' to understand evolution in ancient oceans
... to cope with changing abundances of elements. Studying the ancient oceans also stretches our minds to imagine what we might find someday in alien oceans on other worlds." Visiting billion-year-old ...Ancient oceans offer new insight into the origins of animal life
... 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 levels 580 million years ago was closely ...MU scientist uses tracer to predict ancient ocean circulation
... more than 65 million years ago, clues remain about how the ocean water circulated at that time. Measuring a chemical tracer in samples of ancient fish scales, bones and teeth, University of Missouri ...Simulations and ancient magnetism suggest mantle plumes may bend deep beneath Earth's crust
... toward a draft." The draft in this case, he says, is an ancient oceanic ridge in the Pacific where the seafloor ... team spent two months aboard the ocean drilling ship JOIDES Resolution, retrieving ...Ancient ecosystem thrives millions of years below Antarctic glacier
... to be less than three miles across, however, and a remnant of an ancient ocean that was trapped at least 1.5 million years ago when Taylor Glacier moved over Lake Bonney. ...Venus probe images hint at ancient ocean
... planet with a choking mass of carbon dioxide for an atmosphere, it might have once been home to shifting continents and an ocean of water, according to the latest data from a European space probe.A new wrinkle in ancient ocean chemistry
... ancient seafloor, the fine layers within the rocks allowed the researchers to page through ocean ... oxygen is needed for sulfidic conditions to develop in the ocean," said Chris Reinhard, a Ph.D. graduate ...Earth's early ocean cooled more than a billion years earlier than thought: Stanford study
... and hydrogen in these ancient rocks we were able to put some constraints on how different the ancient ocean composition may have been from today, and then use that composition to try to determine how ...New Map Bolsters Case for Ancient Ocean on Mars
A new map of the remains of a valley network on Mars suggests the planet once harbored an ocean.Methane release could cause abrupt, far-reaching climate change
... atmosphere around 635 million years ago, Kennedy believes. The abruptness of the glacial termination, along with changes in ancient ocean chemistry and chemical deposits in the oceans, have been a ...Ancient Ocean Cooling Sparked a Biodiversity Boom
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.Unique fossils capture 'Cambrian migration'
... .com) -- A unique set 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 of scientists.Shedding light on ancient oceans
(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 ...Asteroid impacts gave crucial spark to early life
Better known as end-bringers than life-givers, asteroid impacts may have forged the chemicals essential for life in Earth's ancient oceans.FOR KIDS: Meteorites may have sparked life on Earth
A collision of extraterrestrial objects and Earth’s ancient oceans could have produced raw materials for life
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