Define palaeomagnetism. How is palaeomagnetism preserved in the rocks? Add a note on geomagnetic time scale.

Paleomagnetism is a branch of geophysics that studies the Earth's ancient magnetic field as recorded in rocks and minerals. It provides valuable information about the past behavior of the Earth's magnetic field, the movement of tectonic plates, and the history of continental drift. Here's a breakdown of how paleomagnetism works and how it is preserved in rocks, along with a note on the geomagnetic time scale:

1. Paleomagnetism: Paleomagnetism involves the study of the magnetic properties of rocks and minerals to determine the past orientations and intensities of the Earth's magnetic _____ _________ ______ _________ _______ ________ ___ ___ _________ ________.
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