A new study of Californias southern Sierra Nevada range by a University of Colorado at Boulder research team has located a massive body of rock that sank into Earths mantle some 3.5 million years ago, allowing the mountains to pop up.
Sunrise illuminates the crest of the Sierra Nevada north of Mt. Whitney. These peaks owe their elevation to removal of weighty material from the base of the Sierra, material now seen descending into the mantle. Photo courtesy Craig Jones, CU-Boulder
Undertaken with a high-tech suite of instruments designed to probe the geology to roughly 125 miles below Earths surface, the study illustrated the mountain building process in the southern Sierras with unprecedented detail.
The study explains how the southern Sierra mountains rose when a body of underlying dense rock sank down and away from the base of the 35-kilometer-deep crust. Authored by CU-Boulder doctoral student Oliver Boyd and CU-Boulder geological sciences Associate Professors Craig Jones and Anne Sheehan, the paper appeared in the July 30 issue of Science.
Craig Jones | EurekAlert!
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Researchers from the University of Basel have reported a new method that allows the physical state of just a few atoms or molecules within a network to be controlled. It is based on the spontaneous self-organization of molecules into extensive networks with pores about one nanometer in size. In the journal ‘small’, the physicists reported on their investigations, which could be of particular importance for the development of new storage devices.
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A widely used diabetes medication combined with an antihypertensive drug specifically inhibits tumor growth – this was discovered by researchers from the University of Basel’s Biozentrum two years ago. In a follow-up study, recently published in “Cell Reports”, the scientists report that this drug cocktail induces cancer cell death by switching off their energy supply.
The widely used anti-diabetes drug metformin not only reduces blood sugar but also has an anti-cancer effect. However, the metformin dose commonly used in the...
A research team from the University of Zurich has developed a new drone that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters.
Inspecting a damaged building after an earthquake or during a fire is exactly the kind of job that human rescuers would like drones to do for them. A flying...
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18.12.2018 | Physics and Astronomy