News tagged with oceanic crust
Water Planets
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.
Jan 22, 2010 |
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Busy microbial world discovered in deepest ocean crust ever explored
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" ...
Space & Earth / Earth Sciences
Nov 19, 2010 |
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Earth's largest environmental catastrophe 250 million years ago studied
The eruption of giant masses of magma in Siberia 250 million years ago led to the Permo-Triassic mass extinction when more than 90 % of all species became extinct. An international team including geodynamic ...
Space & Earth / Earth Sciences
Sep 14, 2011 |
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Solomon Islands earthquake sheds light on enhanced tsunami risk
The 2007 Solomon Island earthquake may point to previously unknown increased earthquake and tsunami risks because of the unusual tectonic plate geography and the sudden change in direction of the earthquake, ...
Space & Earth / Earth Sciences
Apr 09, 2009 |
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Life thrives in porous rock deep beneath the seafloor, scientists say
Researchers have found compelling evidence for an extensive biological community living in porous rock deep beneath the seafloor. The microbes in this hidden world appear to be an important source of dissolved ...
Space & Earth / Earth Sciences
Dec 07, 2010 |
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Oceanic crust formation is dynamic after all
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.
Space & Earth / Earth Sciences
Nov 25, 2009 |
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New findings explain the mystery behind the development of the Banda arc
(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 ...
Space & Earth / Earth Sciences
Jul 26, 2010 |
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Phenomenon of plate tectonics explained
Transform faults subdivide the mid-ocean ridge into segments. Up until now, it was thought that these faults were ruptures that formed in less stable crust areas. Taras Gerya has recorded a model of the dynamics ...
Space & Earth / Earth Sciences
Aug 31, 2010 |
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Novel ocean-crust mechanism could affect world's carbon budget
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 ...
Space & Earth / Earth Sciences
Nov 15, 2010 |
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Subseafloor observatories installed to run dynamic experiments
Marine geologists have returned from two months at sea off British Columbia, Canada, where they installed two observatories in the ocean floor to run innovative experiments at the bottom of the sea.
Space & Earth / Earth Sciences
Sep 07, 2010 |
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Ash Crisis May Not Be Over, Says Leading Volcanologist
(PhysOrg.com) -- Air travel may be resuming in some European countries, but Michael F. Sheridan, PhD, a leading volcanologist and founder of the University at Buffalo's Center for Geohazards Studies, says that the future ...
Space & Earth / Earth Sciences
Apr 21, 2010 |
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Diamonds pinpoint start of colliding continents
Jewelers abhor diamond impurities, but they are a bonanza for scientists. Safely encased in the super-hard diamond, impurities are unaltered, ancient minerals that can tell the story of Earth's distant past. ...
Space & Earth / Earth Sciences
Jul 21, 2011 |
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Could salt crusts be key ingredient in cooking up prebiotic molecules?
German scientists investigating the complex chemical mixture thought to be present in the early Earth’s oceans have found that amino acids can be 'cooked' into many other important chemical building blocks ...
Space & Earth / Earth Sciences
Sep 18, 2009 |
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Researchers find high numbers of heat-loving bacteria in cold Arctic Ocean
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 ...
Sep 17, 2009 |
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Deep recycling in the Earth faster than thought
The recycling of the Earth's crust in volcanoes happens much faster than scientists have previously assumed. Rock of the oceanic crust, which sinks deep into the earth due to the movement of tectonic plates, ...
Space & Earth / Earth Sciences
Aug 10, 2011 |
4.5 / 5 (4) |
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