The second Duke University-led expedition since 1999 to a deep underwater canyon will take geologists to another place in the eastern Pacific Ocean where new sea floor was forged out of volcanic lava within the past several million years.
The Pito Deep trough, positioned as deep as 19,600 feet below the ocean’s surface just west of Easter Island, will offer scientists a rare chance to study the internal geology of such ocean floor crust making processes.
The internal geology is accessible in the rift because it opens up the geologically young crust like a layer cake slice as thick as 1 1/2 miles, exposing now cooled and hardened conduits that once channeled molten rock towards the ocean floor surface. "Our investigation will look at the architecture of the crust and the composition of the rock that’s there," said the expedition’s chief scientist, Jeff Karson, who is a geology professor with Duke’s Nicholas School of the Environment and Earth Sciences. "There will always be surprises," Karson added. "We know so little about the submerged part of our planet that we find something new and exciting virtually every time we travel to the seafloor."
Predicting unpredictability: Information theory offers new way to read ice cores
07.12.2016 | Santa Fe Institute
Sea ice hit record lows in November
07.12.2016 | University of Colorado at Boulder
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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09.12.2016 | Ecology, The Environment and Conservation
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