Metamorphic Rocks Presentation - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. Foliated Metamorphic Rocks. Schist: a metamorphic rock exhibiting a schistosity. Once in Earth's interior, extreme pressures and temperatures melt the rock back into magma to begin the . Some rock parts are: Metamorphic rocks and processes • Metamorphism comes from the Greek words “Meta” - change “Morphe” - form • Metamorphic rocks form by solid-state (no melting) transformation of preexisting rock by processes that take place beneath Earth’s surface. Silicate structure. Metamorphic rocks are formed from existing sedimentary rocks that are changed because of heat or pressure Earth movements may cause rocks to be deeply buried or ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 7f7e02-NWExY • Restate how metamorphic rocks relate to the two other rock groups (sedimentary and igneous). The Rock Cycle. The fabric can be either a planar fabric, called “foliation”, or a linear fabric, called “lineation”. gneiss. Rocks from Volcanic Sources. figure will be added pending permission . tectonic. In geology, rocks and stones are naturally occurring, solid aggregate chunks of one or more minerals. The Rock Cycle. Metamorphic Rock. Introduction to Rocks. Figure 9 – 4. forces at areas known as . Rocks can be sorted into groups by looking at their parts. metaconglomerate. A. Schistosity formed by muscovite and biotite. Typically metamorphic rocks develop some kind of metamorphic fabric during the metamorphic event(s). Grain distributions 5. Any of the rock types can eventually be returned to Earth's interior by . rocks. Heat and pressure help change an igneous or sedimentary rock into a new kind of rock (think about how a caterpillar becomes a butterfly) The Rock Cycle. Metamorphic rocks are made from other rocks. 24 -TEXTURE=sizes, shapes and positions of grains in the rocks TYPES OF ROCKS THE COMPOSITION OF ROCKS IS DETERMINED -BY THE KIND OF MINERALS & -THE AMOUNT MINERALS THAT MAKE IT UP TYPES OF ROCKS 3 TYPES OF ROCKS IGNEOUS SEDIMENTARY METAMORPHIC FORMED WHEN MAGMA or LAVA COOLS AND HARDENS (SOLIDIFIES) 2 TYPES INTRUSIVE … Geology of Rocks. • Texture – microscopic to small-scale mesoscopic features of the rock produced by: 1. By this definition schist is a broad term, and slates and phyllites are also types of schists. Grain shapes 2. Igneous Rocks. ... Metamorphic Rocks. The three main types, or classes, of rocks include sedimentary, metamorphic and igneous. again granite. Metamorphic Structures and Textures • Structure – features that characterize handspecimen or larger masses of rock. In common usage, schists are restricted to those metamorphic rocks in which the foliated minerals are coarse enough to see easily in hand specimen. Rocks have many different parts . Most of the most common rocks in the crust are silicates. • Recognize the different types of … Free Presentations in PowerPoint format. Parts Of Rocks. A thorough presentation on characteristics and description of all main types of metamorphic rocks. subduction. rock cycle. Regional and contact metamorphism. zones. conglomerate. Grain sizes 3. • Describe how metamorphic rocks are produced by the action of heat, pressure, and fluids on preexisting parent rocks over the course of time. Metamorphic rock fabrics. Grain orientations 4. metamorphic. In Earth 's interior, extreme pressures and temperatures melt the rock back into magma begin... 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