PPT-Some of the prettiest rocks in the world form inside a

subduction zone Images courtesy of Sarah Penniston Dorland Activity directions Each group will spend 3 minutes at each of four stations During that time your group will describe each rock. Rocks 3 - Metamorphic Rocks Rocks that form when a pre - existing rock ( protolith ) changes due to temperature or pressure, and/or as a result of squashing or shearing. Protolith – the pre - e http://www.beg.utexas.edu/mainweb/publications/graphics/granite.htm. http://en.wikipedia.org/wiki/File:USDA_Mineral_Sandstone_93c3955.jpg. http://www.gccaz.edu/earthsci/imagearchive/gneiss.htm. Remember the. Sedimentary rocks cover ~ 75% of Earth’s surface. ~ 5 % (by volume) of Earth’s outer 10 miles. Contain evidence of past environments:. Important resource. Coal, oil, and other fossil fuels. Groundwater resources. Igneous. rocks form from the solidification or crystallization of minerals in molten material.. If the rock form below the Earth’s surface it is considered . magma. Molten rock that hardens on the Earth’s surface is called . Geology 121 Course Notes. Add Section Title. Add section detail briefings. Intrusive rocks. Porphyry. Pyroclasts. Extrusive rocks. Classification of Igneous Rocks. Intrusive rocks. Porphyry. Pyroclasts. UNIT . 5. What are Sediments. Sediments are loose Earth materials (unconsolidated materials) such as sand . which are . transported by the action of water, wind, glacial ice and . gravity.. These . materials are . Sedimentary-sandstone. Metamorphic- gneiss. Igneous- diorite. 1. What is a Rock?. Naturally Occurring . (not man made). Solid. Mixture of minerals other organic matter. 2. What makes a rock different from a mineral?. What do rocks look like?. Is this what you thought of?. Or this?. OR THIS????. OR…. THIS!!!!. Rocks can be small or big!. We are going to learn 3 different rocks and how they are made!. Igneous Rock. Sedimentary rocks form in 1 of 3 ways:. 1. . Clastic. Sedimentary Rocks- made of pieces and grains of other rocks. Material such as . sand . or . mud. -usually deposited in . water. Conglomerate sandstone. Rocks http://www.beg.utexas.edu/mainweb/publications/graphics/granite.htm http://en.wikipedia.org/wiki/File:USDA_Mineral_Sandstone_93c3955.jpg http://www.gccaz.edu/earthsci/imagearchive/gneiss.htm What are Sediments. Sediments are loose Earth materials (unconsolidated materials) such as sand . which are . transported by the action of water, wind, glacial ice and . gravity.. These . materials are . A rock is a natural substance that is made up of solid crystals of different minerals that have been fused together into a solid lump. . Rocks can be classified by their attributes: . Texture. Hardness. SEDIMENTARY ROCKS. Geo 281: geology for engineers. Geology and Geophysics Department. King Saud University. What are Sediments. Sediments are loose Earth materials (unconsolidated materials) such as sand . Do Now. 1.  What is an igneous rock?. 2. How do sedimentary rocks form?. Sedimentary Rocks -. are one of the three main rock types . A sedimentary rock can form one of three ways: . by the . deposition.