GGR112H5 Lecture Notes - Lecture 13: Extrusive Rock, Convection, Outer Core
Document Summary
Ggr112 lecture 13 the dynamic planet. Minerals non-living natural compound having specific chemical formula and a crystalline structure. Rock a solid collection of one or more minerals. Magma a mixture of molten rock, mineral grains, dissolved gases and water. Lava magma that reach the surface (ground) Igneous rock formed from cooled magma. Sedimentary rock formed the layered deposition of material, either at surface on land or below water. Metamorphic rock igneous or sedimentary rock that"s been altered by burial and exposure to heat and or pressure. Endogenic system contains internal processes that form solid earth, like heat material in deep earth. Exogenic system external process that set into motion air, water, and ice powered by solar energy. Large changes in the earth are measured over hundreds of millions of years. Many key events has occurred since 4. 6 billion years ago (earth"s existence) Principle of uniformitarianism proposed by james hutton (1795) The present is key to the past theory of earth.
