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Listening in on the birth pangs of Earth's crust
11-23-2006 · EurekAlert!Geologist Donald Forsyth and students from Brown University on a routine ocean-floor mapping cruise jumped into action when they realized that many of the seafloor seismometers they were supposed to collect had been buried by a recent lava flow. Data from the remaining instruments yielded the first detailed record of seismic vibrations leading up to a seafloor spreading event, published this week in the journal Science.
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Keywords: listening, birth, pangs, earth, crust, pang
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Similar news on "Listening in on the birth pangs of Earth's crust":
- Scientists lose instruments, gain first look at seafloor formation
11-23-2006 · EurekAlert!
Researchers studying formation of the Earth's crust have made the first direct seismic observations of an eruption along the mid-ocean ridge when two-thirds of their ocean bottom seismometers were trapped in a lava flow.
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- Stormy Weather in Space: Craft take panoramic view of solar eruptions
03-03-2007 · Science News Online
Twin spacecraft have for the first time tracked solar storms, known as coronal mass ejections, from their birth in the lower depths of the sun's atmosphere all the way to Earth's orbit.
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- Evidence from Hawaiian volcanoes shows that Earth recycles its crust
11-29-2006 · EurekAlert!
Rutgers University geological sciences professor Claude Herzberg offers new evidence that parts of the Earth's crust that long ago dove hundreds or thousands of kilometers into the Earth's interior have resurfaced in the hot lava flow of Hawaiian volcanoes. Writing in Nature, Herzberg claims to have found telltale chemical evidence at Mauna Kea that pieces of this submerged crust have been forced up through plumes and now make up most of this volcano's lava flow.
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- Researchers find origin of 'breathable' atmosphere half a billion years ago
10-28-2007 · EurekAlert!
Ohio State University geologists and their colleagues have uncovered evidence of when Earth may have first supported an oxygen-rich atmosphere similar to the one we breathe today. The study suggests that upheavals in the earth's crust initiated a kind of reverse-greenhouse effect 500 million years ago that cooled the world's oceans, spawned giant plankton blooms and sent a burst of oxygen into the atmosphere.
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- Panel backs 'heat mining' as key U.S. energy source
01-22-2007 · Massachusetts Institute of Technology (MIT)
A comprehensive new MIT-led study of the potential for geothermal energy within the U.S. has found that mining the heat that resides as stored thermal energy in the Earth's hard rock crust could supply a considerable amount of electricity.
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- November-December GSA BULLETIN media highlights
11-05-2007 · EurekAlert!
Geology topics of interest include new insights into evolution of Baja California and Mount Diablo, a large, actively growing fold in Earth's crust between two major faults in the San Andreas system in the San Francisco Bay area.
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- MIT releases major report on geothermal energy
01-22-2007 · EurekAlert!
A comprehensive new MIT-led study of the potential for geothermal energy within the United States has found that mining the huge amounts of heat that reside as stored thermal energy in the Earth's hard rock crust could supply a substantial portion of the electricity the United States will need in the future, probably at competitive prices and with minimal environmental impact.
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- 'Ultrasound' of Earth's crust reveals inner workings of a tsunami factory
11-15-2007 · EurekAlert!
Research announced this week by US and Japanese geoscientists may explain why part of the seafloor near the southwest coast of Japan generates devastating tsunamis, such as the 1944 Tonankai event, which killed at least 1,200 people. The findings will help assess the risk of giant tsunamis in other regions of the world.
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- Research reveals limitations of seismic data for mapping rock units in young oceanic crust
01-29-2007 · EurekAlert!
Researchers report in Nature that an approach used for years to understand the structure of Earth's oceanic crust is flawed and geoscientists will have to reconsider the correspondence between seismic data and rock units when mapping formations of young oceanic crust. The new finding alters the view of how new crust is formed at mid-ocean ridges, how heat and chemicals flow through oceanic crust and how life can exist in deep below the seafloor.
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- Rising tides intensify non-volcanic tremor in Earth's crust
11-22-2007 · EurekAlert!
Researchers find eidence that slow-slip events, essentially ultra-slow-motion earthquakes, are affected by the rise and fall of ocean tides.
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