News tagged with deep sedimentation
Scientists look to microbes to unlock Earth's deep secrets
(PhysOrg.com) -- Of all the habitable parts of our planet, one ecosystem still remains largely unexplored and unknown to science: the igneous ocean crust.
Space & Earth / Earth Sciences
Jan 10, 2012 |
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2012: Magnetic pole reversal happens all the (geologic) time
Scientists understand that Earth's magnetic field has flipped its polarity many times over the millennia. In other words, if you were alive about 800,000 years ago, and facing what we call north with a magnetic ...
Space & Earth / Earth Sciences
Nov 30, 2011 |
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Rising CO2 levels at end of Ice Age not tied to Pacific Ocean
At the end of the last Ice Age, atmospheric carbon dioxide levels rose rapidly as the planet warmed; scientists have long hypothesized that the source was CO2 released from the deep ocean.
Space & Earth / Earth Sciences
Oct 03, 2011 |
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Large CO2 release speeds up ice age melting
Radiocarbon dating is used to determine the age of everything from ancient artifacts to prehistoric corals on the ocean bottom.
Space & Earth / Earth Sciences
Aug 26, 2010 |
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Drilling into the unknown -- the first exploration of a sub-glacial Antarctic lake is a major step closer
(PhysOrg.com) -- Scientists have located the ideal drill site for the first ever exploration of an Antarctic sub-glacial lake, a development that it likely to facilitate a revolution in climate-change research ...
Space & Earth / Earth Sciences
Jun 04, 2010 |
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Scientists detect huge carbon 'burp' that helped end last ice age
(PhysOrg.com) -- Scientists have found the possible source of a huge carbon dioxide 'burp' that happened some 18,000 years ago and which helped to end the last ice age.
Space & Earth / Earth Sciences
May 27, 2010 |
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Sharks from deep waters of Cantabrian Sea are opportunist hunters
A team of Spanish researchers has studied the diet of three species of sharks living in the deep waters in the area of El Cachucho, the first Protected Marine Area in Spain, which is located in the Cantabrian ...
Mar 17, 2010 |
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Deep sedimentation of acantharian cysts -- a reproductive strategy?
Spore-like reproductive cysts of enigmatic organisms called acantharians rapidly sink from surface waters to the deep ocean in certain regions, according to new research. Scientists suspect that this is part of an extraordinary ...
Space & Earth / Earth Sciences
Mar 08, 2010 |
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Homebuilding beyond the abyss
(PhysOrg.com) -- Evidence from the Challenger Deep -- the deepest surveyed point in the world's oceans-- suggests that tiny single-celled creatures called foraminifera living at extreme depths of more than ...
Space & Earth / Earth Sciences
Feb 11, 2010 |
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3.2-Million-Year Temperature History from Tiny Fossils
(PhysOrg.com) -- People often talk about greenhouse gases and their effect on the earth's climate as if those effects were new. But greenhouse gases have been around for hundreds of millennia, playing a key ...
Space & Earth / Earth Sciences
Aug 05, 2009 |
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Subseafloor sediment in South Pacific Gyre one of the least inhabited places on Earth
(PhysOrg.com) -- An international oceanographic research expedition to the middle of the South Pacific Gyre - a site that is as far from continents as it is possible to go on Earth's surface - found so few organisms beneath ...
Space & Earth / Earth Sciences
Jun 22, 2009 |
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Fish researcher demonstrates first 'non-visual feeding' by African cichlids
Most fish rely primarily on their vision to find prey to feed upon, but a University of Rhode Island biologist and her colleagues have demonstrated that a group of African cichlids feeds by using its lateral line sensory ...
Apr 13, 2009 |
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