GEOLOGY EXAM 1 : LSU GEOL 1001 answered 100% correctly| NEWEST 2026/2027
GEOLOGY EXAM 1 : LSU GEOL 1001 answered 100% correctly| NEWEST 2026/2027 abundant elements of Earth's Crust oxygen, silicon, aluminum, iron abundant elements of Earth's Mantle oxygen, magnesium, silicon, iron 3 rock types igneous, sedimentary, metamorphic covalent bond when two atoms share electrons Ionic Bond forms because of the attraction of two oppositely charged ions such as when one atom loans one or more electrons Metallic bond electrons shared widely by many atoms and holds the material together in a non rigid way Intermolecular Force several types of weak bonds can attract a molecule (a combo of atoms) to another molecule Curie Temperature temperature at which certain magnetic materials undergo a sharp change in their magnetic properties Paleomagnetism The record of past changes in earth's magnetic field, as recorded in in rocks and other materials. It's strong enough to orient magnetism in certain materials, especially in iron rich mineral magnetite, in the direction of the prevailing magnetic field. Preserved in volcanic rocks, intrusive rocks, and some sedimentary rocks Magnetic North Earths magnetic field flows from south to north
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