Portal:Earth sciences/DYK/7


 * ... that a world map by Gerardus Mercator attributes the Earth's magnetic field to a magnetic mountain (pictured) above the Arctic Circle?
 * ... that a team of archaeologists discovered a fossilized Han Solo in the rocks of China?
 * ... that forest rings had gone unnoticed by geologists until aerial photography became a common surveying tool in the 1950s?
 * ... that two researchers have argued that some cobbles should be called "very small boulders"?
 * ... that swarms of dykes have intruded into Uruguay?
 * ... that precarious rock formations were evaluated to estimate the peak ground acceleration of the 1952 Kern County earthquake?

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