EVSC 1010 Lecture Notes - Lecture 3: Salt Lake, Extrusive Rock, Clastic Rock
24 Oct 2016
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Document Summary
Mainly nickel and iron, heated to 6000 degrees c outer core is molten creating a sea of liquid metal. At the center intense pressure overwhelms temperature and compresses inner core into a solid: mantle. Surrounds core, beneath the crust: crust. Mechanical layers (more interested in: lithosphere. Crust and the uppermost portion of the mantle: asthenosphere. Weak, plastic portion of the upper mantle, beneath the lithosphere: mesosphere. Refers to lower mantle, between asthenosphere and outer core. Naturally occurring inorganic solid with a definite chemical composition and a crystalline structure: must be/have . Definite chemical composition (specific elemental make up) Inorganic (not produced exclusively by living organisms or biological processes) Crystalline structure (orderly, internal, repeating, arrangement of atoms) Most common minerals are compounds (consist of 2 to 5 different elements: when ions bond together to form a mineral, they do so in proportions so that they are neutral in charge.
