SES1e: EXPLAIN THE FORMATION OF ROCKS AND HOW ROCK AGE IS DETERMINED WARM UP Sept 4th EQ: What are rocks made of? What are the three types of rocks? Get out your rock flip book
SES1e: EXPLAIN THE FORMATION OF ROCKS AND HOW ROCK AGE IS DETERMINED USE YOUR NOTES FROM YESTERDAY AND COMPLETE WORK BOOK PAGES 18-26.
SES1e: EXPLAIN THE FORMATION OF ROCKS MY ROCK BOOK
EXTRUSIVE ROCKS INTRUSIVE ROCKS Igneous Rocks formed when magma hardens beneath Earth’s surface. formed when lava hardens above the Earth’s surface Formed by crystallization of magma Appearance: Appearance: Example: Example:
Classification of Igneous Rocks
CHEMICAL CLASTIC Sedimentary Rocks composed of weathered bits of rocks and minerals dissolved substances precipitate, or separate, from water Formed when igneous rock is weathered and eroded and settles at the bottom of oceans and lakes. Appearance: course to fine grained Appearance: course to fine grained crystalline Examples: conglomerate, sandstone, siltstone, shale Examples:l imestone, travertine, chalk, gypsum, rock salt
Classification of Sedimentary Rocks
3.4 Metamorphic Rocks Formation of Metamorphic Rocks Contact metamorphism occurs when magma moves into rock. Occurs near a body of magma Changes are driven by a rise in temperature.
3.4 Metamorphic Rocks Formation of Metamorphic Rocks Regional metamorphism results in large-scale deformation and high-grade metamorphism. Directed pressures and high temperatures occur during mountain building. Produces the greatest volume of metamorphic rock
Classification of Metamorphic Rocks