Mr. D'angelo Bode
Oct 19, 2024
PLEASE HELP!!! SCIENCE QUESTION! BEST ANSWER TO FIRST CORRECT ANSWER!?
Paleomagnetic evidence has been used to confirm which of the following hypotheses? (3 points)
- Subduction
- Seafloor spreading
- Hot spots
- Transform boundaries
4 Answers
seafloor spreading:
Paleomagnetic evidence, both reversals and polar wandering data, was instrumental in verifying the theories of continental drift and plate tectonics in the 1960s and 70s. Some applications of paleomagnetic evidence to reconstructing histories of terranes have continued to arouse controversies. Paleomagnetic evidence also is used in constraining possible ages for rocks and processes and in reconstructions of the deformational histories of parts of the crust.
Reversal magnetostratigraphy is often used to estimate the age of fossil and hominin bearing sites.
Paleomagnetic studies are combined with geochronological methods to determine absolute ages for rocks in which the magnetic record is preserved. For igneous rocks such as basalt, commonly used methods include potassium-argon and argon-argon geochronology.
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