Earth Sciences 1089F/G Lecture Notes - Lecture 3: Parent Material, Crystallization, Mafic
17 Oct 2022
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Document Summary
Rocks: rocks are solid aggregates of minerals (and mineral-like materials) Igneous: made up of crystals, sedimentary, made up of sand sized particles, etc, metamorphic, crystals however they are flattened out horizontally. Igneous: the term igneous is derived from the latin word ignis , means fire in english, formed from hot material, hot, molten, parent material of these rocks is called magma, contains, 1. Liquid component ( melt : gases ( volatiles ) (water vapour + carbon dioxide, where does magma come from, generated by partial melting of pre-existing rock in. Earth"s crust and mantle: general rule: temperature and pressure increase with depth in earth"s lithosphere. Increased temperature = ability to melt rock: rocks at greater depths tend to have a higher melting point than rocks at shallower depths. If magma remain trapped in a magma chamber, it cools very slowly (crystals grow to large sizes)
