Like water cycle, there exist rock cycle (geological cycle) in geology. Classification of metamorphic rocks is based on mineral assemblage, texture, protolith, and bulk chemical composition of the rock. List. In the lab, we make diamonds at 3,000 degrees Celsius and pressure that measures 50,000 pounds per square inch. Metamorphic rocks can be formed from sedimentary, igneous and even other metamorphic rocks. Amphibolite. All types of Metamorphic Rocks + have a variety of uses and many unknown and interesting facts. Quartzite : hard metamorphic broken with high quartz content. Its basic component is calcium carbonate. Metamorphic rocks are formed by existing igneous or sedimentary rock material that has undergone a chemical or physical change due to heat and pressure. The original rock is subjected to very high heat and pressure, which cause obvious physical and/or chemical changes. During metamorphic action, the pressure on rock can reach 50 thousand pounds per square inch. Interesting Facts. Some kinds of metamorphic rocks -- granite gneiss and biotite schist are two examples -- are strongly banded or foliated. Marble. Metamorphic Rocks List & Flashcards. One ways rocks may change during metamorphism is by rearrangement of their mineral crystals. Read this ScienceStruck article to gain extensive information about the main features of these rocks. Dec 10, 2016 - Explore bbt900's board "METAMORPHIC ROCKS" on Pinterest. A metamorphic rock is a result of a transformation of a pre-existing rock. Gneiss : composed of quartz, feldspar and mica. Gneiss. Metamorphic rocks can be formed by pressure deep under the Earth's surface, from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates. Then, due to various conditions within the Earth, the existing rock was changed into a new kind of metamorphic rock. Metamorphic rocks are like probes that have gone down into the Earth and come back, bringing an record of the conditions they encountered on their journey in the depths of the Earth. Common metamorphic rocks include phyllite, schist, gneiss, quartzite and marble. Metamorphic grade is a general term for describing the relative temperature and pressure conditions under which metamorphic rocks form. Metamorphic rock, any rock that results from the alteration of preexisting rocks in response to changing conditions, such as variations in temperature, pressure, and mechanical stress, and the addition or subtraction of chemical components. It is a hard crystalline rock and has many uses. Remember that all of the igneous minerals can also occur in metamorphic rocks. Get more information about main rocks like Slate, Marble, Schist, Gneiss, Quartzite. Cases of incomplete autoposting are marked on both. Metamorphic rock is one of the 3 major classes of rock comprising the Earth's crust, the others being SEDIMENTARY and IGNEOUS ROCKS.Metamorphic rock has been transformed, while in the solid state, by pressure, temperature and deformation. Sorted by name; initial letter means Igneous, Sedimentary or Metamorphic rocks.. A I Andesite – an intermediate volcanic rock M Anthracite – a form of hard coal B S Banded iron formation – a fine grained chemical sedimentary rock composed of iron oxide minerals S Bauxite – the main ore of aluminium.It is mostly aluminium oxide. As per Wikipedia, “”Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means “change in form””.The original rock (protolith) is subjected to heat (temperatures greater than 150 to 200 °C) and pressure (1500 bars), causing profound physical and/or chemical change. These rocks are changed when heat or pressure alters the existing rock’s physical or chemical make up. One of the oldest types of rocks on our planet, metamorphic rocks are mainly formed due to changes in the parameters of temperature and pressure, which act on the parent material. Source: Joyce M. McBeth (2018) after Karla Panchuk (2018) CC-BY 4.0. Regional metamorphic rocks are found in the mountainous regions, and are developed in accordance to the pressure exerted onto them by the … 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. More information. See more ideas about metamorphic rocks, metamorphic, rocks and minerals. Below the table is a classification showing the relationships among the metamorphic rocks. Other common metamorphic rocks are called marble, gneiss, schist. Metamorphic rocks are rocks that have changed from igneous rocks or metamorphic rocks. Eventually, the names in the classifiction will be clickable to a picture/description. Sedimentary rock is one of the three main rock groups (along with igneous and metamorphic rocks) and is formed in four main ways: by the deposition of the weathered remains of other rocks (known as ‘clastic’ sedimentary rocks); by the accumulation and the consolidation of sediments; by the deposition of the results of biogenic activity; and by precipitation from solution. Label the three coloured areas of the map with the appropriate zone names (garnet, chlorite, and biotite). Metamorphic rocks can form in different conditions, in different temperatures (up to 200 °C) and pressures (up to 1500 bars). This heat and pressure changes the rock into a denser form, which is the main characteristic of metamorphic rock. These agents can act and interact in an almost infinite variety of ways. Fill in the metamorphic rocks corresponding to each protolith in the following table. The composition of the rocks as well as the temperature and amount of pressure placed on them all play a role in the type of metamorphic rock formed. Anthracite. For example: A rock composed of 60% muscovite and 40% biotite, both occurring as interlocking platy grains - a schistose (schist-like; schists are a group of medium-grade metamorphic rocks) texture - is called a muscovite-biotite schist. Mariposite. Slate is a good roofing material, but people also use it for decorative gardening stones, as a base for snooker tables and it was used as a writing board (or writing slate) in the Victorian classroom. Many of the images have two views, most showing paired plane- and cross-polarized light images. Those shown here are either rare or absent in igneous rocks, the minerals look somewhat different because of their metamorphic petrogenesis, or if I just like them. Extra review questions that may be covered in lecture (depending on your professor) that are … Their study provides us with important data regarding formation of the Earth and the past geological environment. Here, we will have a look at some related facts, and also the various types of metamorphic rocks. Piece of slate, metamorphic rock. Novaculite. Nonfoliated rocks may show colored bands that reflect minute impurities in the rock, but the dominant minerals show no visible alignment. The term petrology may be used in papers pertaining to the discipline. 7.2 Classification of Metamorphic Rocks There are two main types of metamorphic rocks: those that are foliated because they have formed in an environment with either directed pressure or shear stress, and those that are not foliated because they have formed in an environment without directed pressure or relatively near the surface with very little pressure at all. For this reason, metamorphic rocks can take on all types of colors and textures. Lapis Lazuli. Marble : compact metamorphic rock that evolved from limestone rocks subjected to high temperature and pressure. They occur when sedimentary and igneous rocks become changed, or metamorphosed, by conditions underground. Its composition is equal to that of granite but forms alternating layers of clear and dark minerals. The shaded areas are metamorphic rock, and the three metamorphic zones represented are garnet, chlorite, and biotite. (Foliated means the parallel arrangement of certain mineral grains that gives the rock a … The conditions required to form a metamorphic rock are very specific. … The four main agents that metamorphose rocks are heat, pressure, fluids, and strain. Hornfels. Metasomatic rocks are considered a subgroup of metamorphic rocks. Low-grade metamorphism takes place at temperatures between about 200 to 320 o C, and relatively low pressure. Marble. List and describe the characteristics of sedimentary, igneous, and metamorphic rock. Each of these will be discussed in turn, then we will summarize how metamorphic rocks are classified. Rock cycle means the process by which rocks are formed, degraded and reformed by the internal geological processes like plutonism, volcanism, uplift etc and/or by external geological process like erosion, weathering, … 7.2 Classification of Metamorphic Rocks There are two main types of metamorphic rocks: those that are foliated because they have formed in an environment with either directed pressure or shear stress, and those that are not foliated because they have formed in an environment without directed pressure or relatively near the surface with very little pressure at all. Metamorphic Rock. The platy layers in this large outcrop of metamorphic rock show the effects of pressure on rocks during metamorphism. Metamorphic rocks can be divided on the basis of their metamorphism – regional, thermal, hydrothermal, and fault zone metamorphism. Metamorphic rocks are the third great class of rocks. Texture In metamorphic rocks individual minerals may or may not be bounded by crystal faces. The list below divides metamorphic rocks into foliated and nonfoliated varieties. Also get details about their Definition, Origin, Formation Process, Textures, Colors etc here. Metamorphic rocks Two lists are provided, an hierarchical list and alphabetical list which gives a table of group names. Chapter 1 / Set (46 cards) Cards; Course; Try it risk-free for 30 days Metamorphic Rocks List & Flashcards Study 46 cards × 1. This denser form makes metamorphic rocks more difficult to erode or break down. Metamorphic rocks start off as igneous, sedimentary, or other metamorphic rocks. A metamorphic rock, on the other hand, began as a rock—either a sedimentary, igneous, or even a different sort of metamorphic rock. Examples of these rock types include marble, slate, gneiss, schist. Metamorphic Rocks. Marble is limestone that has undergone some changes. Rock: A solid mass comprising one or more than one mineral as its constituent is termed as the rock. Figure 1. We know diamonds form deep in the earth where the earth’s lower crust and its upper mantle meet. Metamorphic Rocks: Photos, descriptions and facts about foliated and non-foliated metamorphic rocks. Foliated rocks have platy or elongate minerals aligned in roughly parallel planes or in wavy bands or planes. To name a metamorphic rock, the mineralogy is listed (in decreasing order of abundance) and then the rock is given a suffix relating to its general texture. The preexisting rocks may be igneous, sedimentary, or other metamorphic rocks. Uplift and erosion help bring metamorphic rock to the Earth's surface. View source . Cause obvious physical and/or chemical changes turn, then we will summarize metamorphic... 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