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2 Σεπ 2024 · This is because seafloor spreading theory explains how new oceanic crust is formed at the mid-ocean ridges, where tectonic plates are moving apart. As the plates separate, magma rises from the mantle and solidifies to form new crust, pushing the existing crust away from the ridge.
tectonic plates move apart and magma fills the gap and pushes the older crust away. tectonic plates collide and create mountains without magma. tectonic plates remain stationary and do not interact with each other.
Examining rocks that form on either side of the Mid-Atlantic Ridge provides evidence that supports the theory of plate tectonics. These rocks provide evidence of plate movement because, as we look at rocks farther and farther from the ridge, the rocks-.
How did scientists use the magnetic polarity of the Earth's crust to prove the theory of seafloor spreading? (Rocks in Earth's crust show permanent evidence of Earth's polarity at a given time.) They were able to reverse the polarity of crust samples using an electromagnet.
When one tectonic plate __________ under another at a convergent boundary it sinks back in the mantle. What 3 kinds of evidence were used to prove that the seafloor spread? Age of rocks, magnetic seafloor stripes, WWII ship logs. Pillow Lava, magnetic seafloor stripes, age of rocks.
Quiz yourself with questions and answers for Continental Drift, Seafloor Spreading, Plate Tectonics Quiz review, so you can be ready for test day. Explore quizzes and practice tests created by teachers and students or create one from your course material.
Another piece of evidence for sea-floor spreading is the age of rocks. Choose the true statement about this evidence below: The age of the oceanic crust gets older the further you go from a mid-ocean ridge. The age of the oceanic crust gets younger the further you go from a mid-ocean ridge.
