PPT-1 Metamorphic Rocks, Part 3

CONTACTREGIONAL AND METASOMATIC ROCKS Marble Quartzite and Serpentinite 2 Marble Quartzite and Serpentinite Marble and quartzite may be either regional or contact metamorphic Serpentinite is formed by metasomatic alteration of mafic rocks . 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. . 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. 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. Bell ringer: . Looking at the pictures, what do you think metamorphic rocks are? . What are Metamorphic Rocks? . Metamorphism means “to change form”.. Metamorphic rocks are rocks that form when . Metamorphism. :. . the process that creates metamorphic rocks. .. . All made from the alteration of existing rocks by excessive…. . pRESSURE. . AND/OR . 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).. S Zhou1 K Sun2 RZ Qiu3 XX Mo1 YL Niu4 ZD Zhao1and Y Feng11China University of Geosciences Beijing 100083 CHINA2Tianjing Center China Geological Survey Tianjing300170China3Development And Research Cent Metamorphic ROCKS. Geo 281: geology for engineers. Geology and Geophysics Department. King Saud University. What is metamorphism. Metamorphism . is the . transformation of . one rock type into another.. 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..