IPA: /ˌpeɪliˈoʊmæɡnɪzəm/
KK: /ˌpeɪliˈoʊmæɡnɪzəm/
The study of the magnetic properties of rocks and sediments, particularly how they record the Earth's magnetic field over time.
Scientists use paleomagnetism to understand the history of the Earth's magnetic field.
Paleomagnetism → It is formed from "paleo-" (from Greek "palaios", meaning ancient) and "magnetism" (from Greek "magnetis", meaning magnet). The term refers to the study of the magnetic properties of rocks from ancient geological periods.
Think of 'ancient' ('paleo-') rocks that have 'magnetic' properties — that's what paleomagnetism studies.