Typically metamorphic rocks develop some kind of metamorphic fabric during the metamorphic event(s). Grain shapes 2. Grain sizes 3. Foliated Metamorphic Rocks. By this definition schist is a broad term, and slates and phyllites are also types of schists. tectonic. figure will be added pending permission . granite. zones. -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 … 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 A thorough presentation on characteristics and description of all main types of metamorphic rocks. • Restate how metamorphic rocks relate to the two other rock groups (sedimentary and igneous). forces at areas known as . Introduction to Rocks. ... Metamorphic Rocks. The Rock Cycle. Metamorphic Rocks Presentation - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. The three main types, or classes, of rocks include sedimentary, metamorphic and igneous. Any of the rock types can eventually be returned to Earth's interior by . Free Presentations in PowerPoint format. Metamorphic rocks are made from other 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. metaconglomerate. Silicate structure. conglomerate. rock cycle. Rocks have many different parts . • Describe how metamorphic rocks are produced by the action of heat, pressure, and fluids on preexisting parent rocks over the course of time. The Rock Cycle. A. Schistosity formed by muscovite and biotite. • Texture – microscopic to small-scale mesoscopic features of the rock produced by: 1. 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. Igneous Rocks. Metamorphic Rock. The fabric can be either a planar fabric, called “foliation”, or a linear fabric, called “lineation”. In common usage, schists are restricted to those metamorphic rocks in which the foliated minerals are coarse enough to see easily in hand specimen. Metamorphic rock fabrics. Most of the most common rocks in the crust are silicates. Some rock parts are: Once in Earth's interior, extreme pressures and temperatures melt the rock back into magma to begin the . subduction. Regional and contact metamorphism. Parts Of Rocks. Grain distributions 5. Grain orientations 4. • Recognize the different types of … rocks. Schist: a metamorphic rock exhibiting a schistosity. metamorphic. 24 Rocks can be sorted into groups by looking at their parts. Geology of Rocks. gneiss. In geology, rocks and stones are naturally occurring, solid aggregate chunks of one or more minerals. Figure 9 – 4. Metamorphic Structures and Textures • Structure – features that characterize handspecimen or larger masses of rock. Rocks from Volcanic Sources. again