A team of geologists from Duke University and the Woods Hole Oceanographic Institution has discovered a grinding, coordinated ballet of crustal "microplates" unfolding below the equatorial east Pacific Ocean within a construction zone for new seafloor.
The scientists deduced that relatively small sections of the ocean floor there, and perhaps in other similar places, may be slowly rotating like imperfectly meshing cogs in a machine. The unexpected findings provide new insights into the way several ocean ridge segments that border the microplates evolved into their current positions to form part of what is known as a "triple junction," according to the researchers. And these results may be applicable to systems elsewhere, they added. "As often happens in science, what you think youre going to learn doesnt always end up being the exciting thing that you learn," said Emily Klein, the Lee Hill Snowdon Professor at Dukes Nicholas School of the Environment and Earth Sciences, who is the lead author of a report on the findings published in the Thursday, February 24, 2005 issue of the journal Nature.
Other authors include Deborah Smith, Clare Williams and Hans Schouten of the Woods Hole Oceanographic Institution in Massachusetts. The groups study, begun aboard the San Diego-based research ship R/V Melville, was supported by the National Science Foundation. Klein, whose specialty is geochemistry, said the scientists original focus was the chemistry and structure of the Incipient Rift, the smallest and newest of four ocean ridge segments in a region of the ocean floor northwest of the Galapagos Islands. Ocean ridges are linear features on the ocean floor where molten magma originating in the earths mantle rises and solidifies to form new ocean crust.
Monte Basgall | EurekAlert!
NASA examines Peru's deadly rainfall
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Steep rise of the Bernese Alps
24.03.2017 | Universität Bern
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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