PDF-Formation of Metamorphic Rocks

1 Smith Pun Chapter 6 Why study metamorphic rocks 61What is metamorphism 62 What is the role of temperature in metamorphism 63 What is the role of pressure in metamorphism 64 What is the ro. 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 Metamorphic Rocks . Are Composed of Sedimentary, Igneous, or Metamorphic Minerals that Have Recrystallized.. Marble from Carrara, Italy. Pre-existing sedimentary, igneous, or metamorphic rock changed to a new assemblage of minerals. . Change is Good. Metamorphic Rocks. Formed from intense heat and pressure!. Sources of Heat. 300-1400 degree Celsius temperatures are needed for Metamorphism.. Sources of heat include:. Magma or lava. UNIT . - . 6. What is Metamorphism. Metamorphism. (from the Greek words for “changing form”) is the process by which rising temperature and changes in other environmental conditions transform rocks and minerals. HIGHER-GRADE REGIONAL METAMORPHICS. Gneiss and Eclogite. 2. High-Grade Regional Metamorphic Facies. Rocks in this laboratory represent high to very high grade regional metamorphic rock. Facies represented are the amphibiolite, granulite, and eclogite facies. LOWER-GRADE REGIONAL METAMORPHICS. Slate, Phyllite, . “Greenstone” and Schist. 2. Metamorphic Rock Definition. A sedimentary, igneous, or previously existing metamorphic rock which has undergone textural, structural, and/or mineralogical changes due to the action of one or more agents of metamorphism. GLY 2010 - Summer 2016 - Lecture 11. 2. Metamorphism. The mineralogical, chemical, and structural adjustment of solid rocks to physical and chemical conditions. 3. Metamorphic Rock. Any rock derived from pre-existing rocks by mineralogical, chemical, and/or structural changes, essentially in the solid state . LOWER-GRADE REGIONAL METAMORPHICS. Slate, Phyllite, . “Greenstone” and Schist. 2. Metamorphic Rock Definition. A sedimentary, igneous, or previously existing metamorphic rock which has undergone textural, structural, and/or mineralogical changes due to the action of one or more agents of metamorphism. There are three different types of rocks . Igneous ,metamorphic , . sedimentry. . I will tell you . information about them. . . Info on the rocks . The igneous rock. The igneous rock can be found in different colours. The igneous rock is formed when magma cools and solidifies, it may do this above . Color . Texture. Light. Dark. Fine. Coarse . Igneous rocks are classified according to their. . origin. , . texture. , and . mineral composition. .. Origin . D. id it harden inside the earth or on the earth’s surface?. LOWER-GRADE REGIONAL METAMORPHICS. Slate, Phyllite, . “Greenstone” and Schist. 2. Metamorphic Rock Definition. A sedimentary, igneous, or previously existing metamorphic rock which has undergone textural, structural, and/or mineralogical changes due to the action of one or more agents of metamorphism. CONTACT AND DYNAMIC METAMORPHIC ROCKS. Hornfels, Skarns, Talc-Tremolite Schist, and Epidosite. 2. Contact and Dynamic Metamorphism. The rocks in this lab are formed either by contact metamorphism or by dynamic metamorphism associated with movement along a fault. Metamorphic Rocks. “Meta” means change (Greek). “Morph” means form (Greek). A rock that has been changed from its original form (parent rock) by heat, pressure, and fluid activity into a new form (daughter rock).. January 2013. 3-1 What are rocks?. Rocks in Earth’s Crust. Petrologists. study rocks & minerals.. Rocks are made of minerals (2000). . Classification of Rocks. Classification is the grouping of things that are alike..