Paleomagnetism , or palaeomagnetism , is the study of the record of the Earth's magnetic field in rocks, sediment, or archeological materials. Magnetic minerals in rocks can lock-in a record of the direction and intensity of the magnetic field when they form. This record provides information on the past behavior of Earth's magnetic field and the past location of tectonic plates. The record of geomagnetic reversals preserved in volcanic and sedimentary rock sequences magnetostratigraphy provides a time-scale that is used as a geochronologic tool. Geophysicists who specialize in paleomagnetism are called paleomagnetists. Paleomagnetists led the revival of the continental drift hypothesis and its transformation into plate tectonics.
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No document with DOI "10.1.1.876.6177"
Homo floresiensis , dubbed "the Hobbit," was an ancient hominin that lived until at least 17, years ago. LB1's tiny build earned the species the nickname of "the Hobbit," after the tiny folk in J. Tolkien's book of the same name. The small stature of these specimens suggests LB1 wasn't an anomaly. Initial dating of the hobbit remains gave the species an age range of 74, to 17, years ago.
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