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Alfred Wegener produced evidence in 1912 that the continents are in motion, but because he could not explain what forces could move them, geologists rejected his ideas. First, they theorized that separate species developed identically across the far-flung continents, a notion that was highly unlikely. The pattern and distribution of these stripes showed that the magnetic fields had reversed many times over millions of years and only could have formed if the seafloor had been spreading apart over those millions of years. Alfred Wegener considers weather data at his desk in Greenland, 1930, courtesy of the Alfred Wegener Institute for Polar and Marine Research. If a media asset is downloadable, a download button appears in the corner of the media viewer. That is why earthquakes do not occur everywhere on Earththeyre clustered around the boundaries of tectonic plates. What Hess discovered was a big surprise. It was thought impossible for blocks of crust to plow their way over Earths mantle, which was known to be far more rigid and dense. Evidences of Plate Movements | Science - Quizizz In that sense, many authors suggest that Alfred Wegener's theory of the original supercontinent Pangea and the subsequent continental displacements finally reached a consensus when irrefutable evidence . Struts and shocks are a vital part of your 2021 Land Rover Discovery Sports suspension. Some people are surprised that Wegeners ideas about continental drift were not immediately accepted. An attempt to explain this sequence in a world of fixed continents presents insurmountable problems. What evidence of climate change on continents supports the theory of continental drift?signs that glaciers existed in South AfricaWhich evidence suggests that Africa, Antarctica, South America, India, and Australia formed Gondwanaland 200 million years ago? centrifugal force caused by the rotation of the Earth, and tidal-type waves in the Earth itself what discovery provided strong support for continental drift theory answer choices geology fossil evidence electromagnetism paleomagnetism Question 5 30 seconds Q. which is NOT an evidence of seafloor spreading answer choices molten magma constantly erupting drilling samples of rock fossil evidence magnetic stripes Question 6 30 seconds Q. Ocean ridges have elevations that typically rise 2 to 3 km (1.2 to 1.9 miles) above the surrounding seafloor and widths that range from a few hundred to more than 1,000 km (600 miles). Which is not evidence of seafloor spreading A molten magma constantly erupting C fossil evidence B. drilling samples of rock D. magnetic stripes 6. For instance, the North American plate is much larger than the North American continent; the plate extends from the western coast of North America to the mid-Atlantic. The third type occurred in seismically active fracture zones and became known as transform faults. 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 fascinated by it, the international geological community's reaction to Wegener's theory was Climatology was one such discipline. If you're seeing this message, it means we're having trouble loading external resources on our website. time. Together, these plates constitute the lithosphere, from the Greek lithos, meaning rock. The lithosphere rests on and slides over an underlying partially molten (and thus weaker but generally denser) layer of plastic partially molten rock known as the asthenosphere, from the Greek asthenos, meaning weak. Plate movement is possible because the lithosphere-asthenosphere boundary is a zone of detachment.