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Geotechnical Egineering News tagged with [earth magnetic field]

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Iron 'jet stream' detected in Earth's outer core
BBC NEWS   21 December 2016   United States   Americas  
The major part of Earth’s magnetic field is generated via convection of molten iron in the outer core. The field protects all life from damaging space radiation (ESA)
<p>Scientists say they have identified a remarkable new feature in Earth&rsquo;s molten outer core.</p> <p>They describe it as a kind of "jet stream" - a fast-flowing river of liquid iron that is surging westwards under Alaska and Siberia.</p> <p>The moving ...