PPT-1 Metamorphism and Metamorphic Rocks

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 preexisting rocks by mineralogical chemical andor structural changes essentially in the solid state . Rock Environments. Metamorphic Environments. What Is Metamorphism?. Metamorphism. . Changes rock via temperatures and/or pressures unlike those in which it initially formed. All metamorphic rocks have a . 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. . – Write down . 5 things . you learned in the first . 3 . weeks of class!. Chapter 3, Section 3.4. Metamorphic Rocks. Rock Cycle. Sedimentary Rocks. Igneous Rocks. Test . Looking Back. What 4 major processes form sedimentary rock:. 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. Metamorphism. Metamorphic rocks: appear to have changed in their structure or chemical composition since their creation or formation.. Originally sedimentary or igneous. Altered by heat, pressure, or exposure to hot fluids in earth’s crust. 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. 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. 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. Spring 2016. 2. Important Note. Material from this review may appear on the final examination, in the same or somewhat altered . form. Questions are on the body of the slide. Answers are in the notes section – this allows you to quiz yourself before checking the answer. 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. rocks form?. Metamorphic Rocks. Rocks that are created because of a change in pressure and temperature.. Metamorphic Rock Formation. Metamorphic rocks can form igneous, sedimentary, or other metamorphic rocks.. Metamorphism. Causes of Metamorphism. Elevated T & P. Fluids (H2O, CO2, CH4, etc.). Directed Stress. Types of Metamorphism. Regional: occur along convergent plate boundaries.. Contact: occurs along margin of a magma intrusion.. 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.