The first study to ever explore biological activity in the deepest layer of ocean crust has found bacteria with a remarkable range of capabilities, including eating hydrocarbons and natural gas, and "fixing" or storing carbon.
Earth Sciences
Nov 19, 2010
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The Earth is constantly manufacturing new crust, spewing molten magma up along undersea ridges at the boundaries of tectonic plates. The process is critical to the planet's metabolism, including the cycle of underwater life ...
Earth Sciences
Nov 15, 2010
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(PhysOrg.com) -- The Banda arc - a gigantic 1,000km long, 180-degree curve in eastern Indonesia - has puzzled geologists for many years, with much debate and controversy surrounding its complex origin and evolution. A solution ...
Earth Sciences
Jul 26, 2010
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The chemical composition of our oceans is not constant but has varied significantly over geological time. In a study published this week in Science, researchers describe a novel method for reconstructing past ocean chemistry ...
Earth Sciences
Feb 5, 2010
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Of the roughly 420 extra-solar planets now known, about a dozen are in the newly named category of "super-earths," planets whose masses are in between of two and about fifteen earth-masses.
Astronomy
Jan 22, 2010
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Imagine the Earth's crust as the planet's skin: Some areas are old and wrinkled while others have a fresher, more youthful sheen, as if they had been regularly lathered with lotion.
Earth Sciences
Nov 25, 2009
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A team of scientists led by U of C grad Casey Hubert has detected high numbers of heat loving, or thermophilic, bacteria in subzero sediments in the Arctic Ocean off the Norwegian island of Spitsbergen. The bacterial spores ...
Cell & Microbiology
Sep 17, 2009
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(PhysOrg.com) -- The most powerful earthquakes happen at the junction of two converging tectonic plates, where one plate is sliding (or subducting) beneath the other. Now a team of researchers, led by Teh-Ru Alex Song of ...
Earth Sciences
Apr 23, 2009
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The core-mantle boundary (CMB) is crucial for the Earth's magnetic field and rotation. It is known that this boundary harbors complex structures, including ultralow velocity zones (ULVZs), characterized by significantly slowed ...
Earth Sciences
Apr 1, 2024
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A new study led by Dr. Jian Lin (Southern University of Science and Technology) and Dr. Fan Zhang (South China Sea Institute of Oceanology, Chinese Academy of Sciences) reexamines how the ocean's lithosphere operates.
Earth Sciences
Nov 7, 2023
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