We dont perceive that the continents we live on are moving. Volcanic islands and seamounts develop where a plate moves over a stationary hotspot. Wegener was not the first to present the idea of continental drift, as he called it, but he was the first to put together extensive evidence from several different scientific approaches. An attempt to explain this sequence in a world of fixed continents presents insurmountable problems. Click here to sign up for exclusive offers. militantly hostile. Evidence of the Permo-Carboniferous ice-age era that peaked The actual connection between the continental fit (the idea that continents fit together like the pieces of a jigsaw puzzle) was first proposed in 1858 by Antonio Snider-Pellegrini (1802-1885), Other scientists mentioned this idea for years afterward, but it was not until 1912 that German meteorologist and geologist Alfred Wegener (1880-1930) expanded the theory, suggesting that the continents at one time formed a supercontinent he called Pangea (or Pangaea). The force that moves the plates is thought to be convection currents in the mantle under the Earths crust. Advertisement Advertisement 602654 602654 Canyon sustains the idea of continental drift. The third type occurred in seismically active fracture zones and became known as transform faults. Plate tectonics - Evidence supporting the hypothesis | Britannica The concept of plate tectonics was formulated in the 1960s. One method of determining a dinosaurs weight is by studying the cross-sectional area of a limb bone. to have murmured, "Nevertheless, it moves!". that of Galileo who, forced to recant Copernicus' theory that the Earth moves around the sun, is said This map displays an early "supercontinent," Gondwana, which eventually moved to form the continents we know today. But the acceptance of continental drift and other . Further evidence came along by 1963, as geophysicists realized that Earths magnetic field had reversed polarity many times, with each reversal lasting less than200,000 years. C. fossil evidence A. molten magma constantly erupting B. drilling samples of rock D. magnetic stripes 6 The magnets point north when Earth's magnetic field has Alfred Lothar Wegener was born in Berlin, the son of a Protestant pastor.
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