Unlock Your Education See for yourself why 30 million people use Study. Weather and Climate. We could assume that this igneous intrusion must have happened after the formation of the strata. Rock-Forming materials are on top. Of course, it only applies to sedimentary rocks. Earning College Credit Did you know… We have over college courses that prepare you to earn credit by exam that is accepted by over 1, colleges and universities.
Through geologic time, the polarity of the Earth's magnetic field has switched, causing reversals in polarity.
Dating Rocks and Fossils Using Geologic Methods
Email your Friend. Earth Science Create your account. Principles of the youngest rock, and relative rock, in the principle of stratigraphy uses the earth. Geologists can measure the paleomagnetism of rocks at a site to reveal its record of ancient magnetic reversals.