GEOL 1001 : Test Questions Part 1
Document Summary
= continents on the east side could fit snugly against those on the west. = fossils of identical land-dwelling species occur on continents that on. = the dipoles of tiny magnetite grains in basalt align with the earths" field as the basalt cools and stay that way once the basalt is cold. = deep-ocean trenches, the deepest of which have a depth of about 11 km, border chains of active volcanoes. Where is the heat flow of oceanic crust the greatest. = along the axis of the mid-ocean ridges. Which of the following statements about earth"s magnetic field is correct. = the polarity of the magnetic field reverses every now and then. Seafloor spreading is the mechanism for plate movements and therefore, continental drift.
