Band Iron Formations
These Band Iron formations are precambrian sedimentary rocks. They are highly magnetic. Band Iron Formations like this one were responsible for prominent variations in Earths magnetic field, like the Kursk Magnetic Anomaly that was remotely sensed by satellites. Kursk is located in western Russia, at the confluence of the Seym and Tuskar rivers. Credit: Photo courtesy of P.Hoffman
Lithospheric Magnetic Anomalies
This image shows variations in magnetic fields in the upper layer of Earths surface known as the lithosphere. The data were acquired by satellites passing over at an altitude of 400 km. The satellite data were run through a model to produce this image. The units are in nanoteslas, the common unit for measuring magnetic fields. The color bar indicates areas with positive and negative magnetic fields. Credit: Terrence Sabaka et al./NASA GSFC
NASA and the United States Geological Survey (USGS) are teaming up to create one of the most complete databases of magnetic properties of Earth’s rocks ever assembled. The partnership demonstrates ongoing interagency collaboration.
Satellite data of Earth’s magnetic field combined with rock magnetic data collected on the ground will provide more complete insight into Earth’s geology, gravity and magnetism.
Satellites, including NASA’s Magsat, have detected magnetic signals in the upper layer of the Earth, called the lithosphere. With over 36,000 rock samples, the combined database will help researchers determine the origin of these signals in Earth’s crust.
Krishna Ramanujan | GSFC
Seismic study reveals huge amount of water dragged into Earth's interior
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A damming trend
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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