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</html>";s:4:"text";s:29906:"Day 22, Igneous rocks associated with gold and Metamorphic Rocks. Types of Metamorphic Rock. this is … Metamorphic grade is a general term for describing the relative temperature and pressure conditions under which metamorphic rocks form. Metamorphic rocks are usually denser and harder than sedimentary rocks. The protolith is subjected to heat and pressure causing profound physical and chemical change. Has silky sheen called phyllitic luster. Magma pockets rise, which increases heat, and minerals change due to temperature and pressure. of its formation. During this long process of change, new minerals grow from the chemicals in the old rocks, forming new rocks. It is composed primarily of the mineral calcite (CaCO 3) and usually contains other minerals, such as clay minerals, micas, quartz, pyrite, iron oxides, and graphite.. Most metamorphism results from the burial of igneous, sedimentary, or pre-existing metamorphic rocks to the point where they experience different pressures and temperatures than those at which they formed (Figure 7.0.2). When the pre-existing rocks (sedimentary or igneous rock) are subjected to increased temperature, pressure and action of chemically active fluids, metamorphic rocks are formed. The four main agents that metamorphose rocks are heat, pressure, fluids, and strain. Rocks are made up of one or more minerals. Heavy Duty Aluminum Foil 3. Metamorphic Rocks. This is the second area in the world, after the Italian Alps, that shows microdiamonds can form in metamorphic rock through subduction of oceanic plates. The original rock gets heated (temperatures greater than 150 to 200 °C) and pressured (1500 bars ). Metamorphic rocks are rocks that have changed from one type of rock to another. While sedimentary rock is formed from sediments, and igneous rock is formed from molten magma, metamorphic rock is rock made from pre-existing rocks. These rocks undergo a change, either caused by high heat, high pressure, or exposure to mineral rich hot liquid, which transforms the existing rock into a new type of rock, changing the minerals' composition in the process. Metamorphic rocks are formed when there is a change in the heat or the pressure of their environment. Marble of the Deseret Limestone and Gardison Formation can be seen in Big Cottonwood Canyon, Salt Lake County. Billions of people have lived having never heard of metamorphic rocks or perhaps having never even seeing one. It shows the rock layers with the oldest on the bottom, and the youngest on the top. These and several other groups of metamorphic rocks in the State include quartzite, quartz-mica schist, greenstone, amphibolite, marble, and several types of gneiss. Phyllite could also be considered the parent rock as mica schist is a more highly metamorphosed phyllite. Chemical reactions that take place during metamorphism produce mineral assemblages stable under the new conditions of temperature and pressure. Metamorphic rocks form when existing rocks are exposed to heat and pressure deep within the Earth's surface. This process is called metamorphism, meaning to "change in form". These conditions often stretch, twist and fold the rock as it cools. A)A B)B C)C D)D 51.The data table below lists characteristics of rocks A, B, C, and D. Which rock is most likely phyllite? 4. •Chemical, mineralogical and structural adjustments of solid rocks to physical and chemical changes at depths below the region of sedimentation The word metamorphic (from Greek) means "of changing form." Many of the metamorphic rocks are found on the surface of the Earth where there is a lot of pressure and heat that comes from the magma that is under the surface. Metamorphic Rocks. The story begins about 2 billion years ago when igneous and metamorphic rocks were formed. What are metamorphic rocks? 48. Metamorphic Rocks Metamorphic Rocks Definitions Definitions Metamorphic Rock Metamorphic Rock • •--"Meta"= Change (Grk) "Meta"= Change (Grk)--"Morph"= form (Grk) "Morph"= form (Grk) a rock that has been changed a rock that has been changed--from its original form (parent) by from its original form (parent) by heat, pressure, and fluid activity heat, pressure, and Metamorphic rocks are grouped into foliated and non-foliated metamorphic rocks. From the upper mantle up to within a few kilometers of the surface of the earth there is a … The driving forces for metamorphism are changes in temperature,pressure,and compo-sition of pore fluids. Mica schist, the most common schistose rock and the second most common metamorphic rock, is composed mostly of mica (usually biotite or muscovite) and smaller amounts of quartz. To look at rock layers, geologists use a diagram called a stratigraphic column. Igneous rocks with smaller crystals tend to be smoother and have a glassy appearance. And Metamorphic Rocks By Robert S. Jones GEOLOGICAL SURVEY CIRCULAR 610 Washington J 969 . Metamorphic rock forming. Garnet, Graphite, Olivine, Pyrite, Quartz. Metamorphism The process through which a rock’s structure is changed by heat and pressure As the temperature and/or pressure increases on a body of rock we say that the rock undergoes prograde metamorphism or that the grade of metamorphism increases. These types of metamorphic rocks can also form at hot spots. Metamorphic rocks are rocks formed from heat and pressureAll types of rocks can become metamorphic rocks when exposed to heat and pressure. Metamorphic rocks that form because they are exposed to heat from magma form at the same plate boundaries igneous rocks form: divergent, ocean--ocean convergent, and ocean--continent convergent boundaries. Metamorphic rocks are formed deep beneath the Earth's surface by great stresses resulting mainly from tectonic plate movements. The word " metamorphic " comes from Greek and means "To Change Form ". CaO, Iron (III) Oxide, FeO, MgO, Silicon Dioxide. Metamorphic rocks form when high temperatures and pressure act on a rock to alter its physical and chemical properties (metamorphism means 'to change form'). Metamorphic rocks are the third great class of rocks. The word "metamorphic" comes from Greek and means "To Change Form". 1 comment. Two incredible creatures but, formed as one. Examples of metamorphic rocks are slate and marble. Microdiamonds in metamorphic rocks are important minerals because they form in continental collision zones and show that the crust has penetrated deeper than 120 km below the surface. Metamorphic Rock Formation from sedimentary rocks is caused by heat and pressure. What are Metamorphic Rocks? https://opentextbc.ca/geology/chapter/7-3-plate-tectonics-and-metamorphism These rocks are changed when heat or pressure alters the existing rock’s physical or chemical make up. They occur when sedimentary and igneous rocks become changed, or metamorphosed, by conditions underground. Metamorphic rock is rock that has changed from one type of rock into another. Formation of Metamorphic Rocks. ‘Explain the formation of metamorphic rocks, with reference to examples from Ireland’ (2013 Q1 B.) Metamorphic: this rock forms from existing (not molten) rocks under heat and/or pressure; the crystals are interlocking and have a preferred orientation Sedimentary: rocks are cemented together; not formed from crystals but from pieces or precipitants The gold deposits of pleasure have their origin in alluvium and these are mainly formed by igneous or volcanic. Metamorphic Rock: Rock formed by high temperatures and pressures that cause changes in the parent rock while in the solid form. This change in form is the same thing for metamorphic rocks! The first type of metamorphism is Thermal metamorphism, this is when rocks are changed as a result of Formation. The parent rock can be either sedimentary, igneous, or even another metamorphic rock . The diagram below shows that rocks are altered or destroyed when it is forced out of its equilibrium conditions. The rock cycle is a continuous process describing the transformation of the rocks through various stages throughout their lifetime. The photo shows rock layering or stratification which is a typical feature associated with sedimentary rocks--natural gas and petroleum are formed and found in sedimentary rocks--fossils which occur in sedimentary rocks show the life forms present on Earth during geologic time Math/Science Nucleus© 2001 1 METAMORPHIC ROCKS Teacher Guide including Lesson Plans, Student Readers, and More Information Lesson 1 - Formation of Metamorphic Rocks Lesson 2 - Metamorphic Rock Classification Chart Lesson 3 - Metamorphic Rocks - Lab Lesson 4 - The Many Facies of Metamorphic Rocks Lesson 5 - Michelangelo and Marble designed to be used as an … Metamorphic rocks begin to form at 12-16 kilometers beneath the Earth's surface. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. These are similar conditions which produce igneous rock, however, the important distinction to make is that the original or protolith rocks which When the plates of the earth collide, they squeeze the rocks at the borders with unbelievable force. rocks that formed earlier as sedimentary or igneous rocks but have undergone alteration (metamorphism) in the earth’s interior under the influence of abyssal fluids, temperature, and pressure or alteration near the surface under the influence of the heat of intrusive masses. Metamorphic rocks are best identified when looking at the rock as you see them in nature. Like most Earth materials, rocks are created and destroyed in cycles. This thread is … That’s a pretty neat way of understanding different types of rocks! Metamorphic rock refers to any type of rock that is created from a change of pre-existing rocks caused by changing environmental conditions, such as differences in temperature, pressure, and mechanical stress, and the addition or loss of chemical components. 2. Xenoliths of these rocks recovered from volcanic rocks in the Davis Mountains, Bofecillos Mountains, and Chisos Mountains provide strong … Large tectonic movements and magma intrusions create earth movements and subsequently... Types of Metamorphic Rocks. Cataclasite (kat-a-CLAY-site) is a fine-grained breccia produced by grinding rocks into … A flood is an unconsolidated deposit consisting of sand and mud, in the Motagua River formed these floods especially during the … 3. Even though rocks can be made from the same … How do metamorphic rocks form? Formed metamorphism of slate. Metamorphic rock - Metamorphic rock - Metamorphic reactions: A very simple mineralogical system and its response to changing pressure and temperature provide a good illustration of what occurs in metamorphism. Dragon Eye, a metamorphic rock formation, was found in a stone mine in Lancashire, England. Most of Earth's crust is made up of … Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. metamorphic rocks. Metamorphic rocks sometimes show distortions caused by the movements that led to their formation. Extreme pressure may also lead to the form… Quartzite is a metamorphic sandstone. Joint Earth Science Education Initiative - modelling metamorphic rocks. Archived. Metamorphic Rocks are rocks that are exposed to a lot of heat and a lot of pressure and this causes them to change. The study of metamorphic rocks gives us information about the temperature and pressure that occur at great depth within the earth’s crust. The parent rock can be either sedimentary, igneous, or even another metamorphic rock. Metamorphic rocks are formed when other types of rocks change because of the enormous pressure and heat they experience deep within the earth. Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism. Metamorphic rocks can be formed from sedimentary, igneous and even other metamorphic rocks. A great drive through stunning rock formations with amazing colours, this is a short drive from Furness creek and bad... 16. At the surface, metamorphic rocks will be exposed to weathering processes and may break down into sediment. Rocks are classified into three distinct groups based on how they are formed: • Igneous rocks are formed by hardened magma . Metamorphic rocks record how temperature and pressure affected an area when it was forming. Formation Primary/secondary rocks Earth,s movement/ High temp and pressure Partially/ wholly reconstituted/altered Metamorphic rocks. The process in which sedimentary and igneous rocks are crushed and melted underground to form metamorphic rock is explained. How do metamorphic rocks form? Five types of metamorphic rock formation can be understood by the three ways by which metamorphic rocks can be formed. When magma cools quickly, these crystals don’t have long to form, and therefore are much smaller, as the crystals stop forming when the rock is fully cool. The nature of the parent rock controls the types of metamorphic rocks that can form from it under differing metamorphic conditions (temperature, pressure, fluids). Because of the conditions necessary to transform rocks, those being heat and pressure, the process usually occurs deep within the Earth’s crust, or in areas where tectonic plates collide. Metamorphic rock formation. Although metamorphic rocks typically form deep in the planet’s crust, they are often exposed on the surface of the Earth. During metamorphism re-crystallization of mineral constituent takes place, as a result new minerals and new texture are produced. Basalt metamorphosed under under these very low P-T conditions characteristically forms certain minerals called zeolites (Fig. Depending on conditions, a protolith can transform into any metamorphic rock. Metamorphic rocks are formed when existing parent rocks are transformed (metamorphosed) by heat and pressure deep below the surface of the earth or along the boundary of tectonic plates. The heat and pressure comes from inside the earth. Keep reading to know more… Metamorphism is a geological process involving rocks changing their form. Pressure not only influences the rate and degree of metamorphism, with deeply buried rocks requiring more time and heat to undergo a particular metamorphic processs, pressure also causes textural changes in the rock (more later) - how large the crystals are and their orientations - that are so distinctive of metamorphic rocks. Metamorphic rock is one of three types of rock found on Earth. They're not a specific type of rock, but one that changed form sometime ago. Slate, a metamorphic rock, can form from either clay, shale, or mudstone. One of the three major classes of rocks is metamorphic rock. Its name is from 'morph' (meaning form), and 'meta' (meaning change). What is Marble? During metamorphism re-crystallization of mineral constituent takes place, as a result new minerals and new texture are produced. Non-foliated metamorphic rocks are rocks that have been changed by heat and pressure into rocks with a non-layered or banded appearance. 1 Creation 2 Types of metamorphism 2.1 Contact metamorphism 2.2 Regional metamorphism 3 Categorization 3.1 External Links 3.2 See Also The protolith is subjected to … For example, contact metamorphism does not generally produce foliated rocks. The kinds of rocks that can be expected to form at different metamorphic grades from various parent rocks are listed in Table 10.1. The protolith may be sedimentary rock, … Small tart tins or pie plates 2. 1.2 Composition. Explanation: When rocks are subjected to high pressure and temperature condition, then it gives rise to the formation of metamorphic rock. Marble is a metamorphic rock formed from the sedimentary rock of limestone. With impure carbonate rocks, the carbon dioxide produced by the breakdown of calcite is removed from the system and calc-silicate rocks are formed. Metamorphic rock is the transformation of an existing rock type, the protolith, in a process called metamorphism, which means "change in form". Metamorphic Rock Formation from igneous rocks is caused by heat and pressure. Glad You Asked article, Survey Notes, v. … Non-foliated rocks ; Not all rocks are foliated. The elements in the minerals can actually "move" to form new minerals. a foliated rock called _____ —fine-grained *mica-richh** rock. Metamorphic Rock Textures. Which is one characteristic that is used to identify types of metamorphic rocks? Rocks can be metamorphosed simply by being at great depths below the Earth's surface, subjected to high temperatures and the great pressure caused by the immense weight of the … Metamorphic rocks: formed when heat or pressure causes older rocks to change into new types of rocks. The word metamorphicis derived fromthe Greek Words meta("change")and morph("form")When applied to rocks, it therefore refers to rocks that have changed theirform - rocks that may have originally been sedimentary, igneous, or anothermetamorphic rock; then subjected to new conditions of temperature and pressure,causing "recrystallization" and a completely new form. The original parent rock (or protolith) of mica schist is shale. Located in the crevasses of the Kjerag Mountain, this is the most thrilling … Kinds of Metamorphism 1) Thermal metamorphism (Contact metamorphism) • Heat is dominant factor due to – Increase in depth – Intrusion of magma. Then, layer upon layer of sedimentary rocks were laid on top of these basement rocks. There are two main types of metamorphic rocks. Toggle text. Metamorphic. The region embraced within the Trans-Pecos region of Texas encompasses many snapshots of North American geologic history. Thus, the kinds of metamorphic minerals in a rock reflect the changing conditions of pressure and temperature that the rock experienced. Metamorphic rocks form from pre-existing rocks ("parent rocks") due to changes in either temperature, pressure, or volatiles within the earth, often by a combination of all three. 1.3 Transformation. Metamorphic rocks are rocks that have changed from igneous rocks or metamorphic rocks. Wave Rock is a natural rock formation that is shaped like a tall breaking ocean wave. Q. Metamorphic rocks are formed from the remelting and recrystallization of protolyth rocks, such as igneous and sedimentary rocks. Like water cycle, there exist rock cycle (geological cycle) in geology. Metamorphic rocks were once igneous or sedimentary rocks, but have been changed (metamorphosed) as a result of intense heat and/or pressure within the Earth’s crust. 1.2.2 Compound Content. Metamorphic “meta” = to change “morph” = form Metamorphic rocks are formed from Parent rocks (pre-existing rocks) Parent rocks can be Igneous, sedimentary, or other metamorphic rocks. Metamorphic rocks form when igneous or sedimentary rocks are exposed to extreme heat and pressure. What are the features of these rocks? A metamorphic rock forms from a parent rock called a protolith. 2-2.1.3 Metamorphic Bedrock . 3. The metamorphic rocks form due to temperature, pressure, and various chemical or physical changes. Teaching the Rock Cycle Teaching Packet is available here. In most contexts they are of no importance at all. These granite masses were once molten, with hot, liquid rock squeezing and melting its way upwards. Some of the examples of metamorphic rocks are Marble, Quartzite, Schist and Gneiss. Metamorphic rocks are formed as a result of temperature and/or pressure action on existing rocks causing changes in the composition and resulting in the appearance of minerals in rocks. Sedimentary rocks form by deposition of the sediments or debris on the Parent rock. this is … A metamorphic rock is a type of rock generated or formed from pre-existing sedimentary or igneous rocks due to changing environmental conditions.  The rock does not melt, or else it would be considered an igneous rock. Normally, by the time kyanite or andalusite appears, previously formed metamorphic chlorite has long since become unstable and replaced by higher grade minerals. Metamorphic rocks yield many attractive minerals, such as garnet, corundum (varieties of which include sapphire and ruby), and kyanite. The rocks provide clues to their transformation into a metamorphic rocks. Types of Metamorphism. Slate is a metamorphic rock that’s created when clay is subjected to a lot of pressure; keep adding pressure and the slate becomes phyllite, and add a lot more pressure and heat and you get schist. It is formed by the metamorphism of limestone. Materials: 1. Posted by 1 year ago. Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. Sandstone, limestone, and mudstone are examples of sedimentary rocks. 1.2.1 Mineral Content. Metamorphism is a geological process involving rocks changing their form. 1.3 Transformation. These agents can act and interact in an almost infinite variety of ways. Metamorphic rocks are those formed by other types of rocks that have been exposed to heat, pressure and time, which change them into a different type of rock. Metamorphic rocks are those derived from the alteration of existing rocks by heat and pressure over long periods of time. 3. Marble is a metamorphic rock produced from limestone in the earth crust. Quartzite is metamorphic rock formed when sandstone is subjected to heat and pressure. By jesseo586. The vast majority of exposed rock in Ohio is sedimentary. Metamorphic rocks are formed when igneous or sedimentary rocks change due to the fact they have been put under great heat or pressure or both. The pre-existing rock is subjected to heat and extreme pressure causing dramatic physical and/or chemical change. Metamorphic rock is formed under extreme heat or pressureUnlike other types of rock, metamorphic rocks start as rocks which are then transformed into different rocksMetamorphic rocks are classified as either foliated or non foliated depending on their mineral structure and pattern Eclogite is unusually dense for a silicate rock (3.4–3.5 g/cm 3) which suggests that very high pressure was involved in the formation of this rock type. Thus, in order to understand the mineral assemblages and what they mean in terms of the pressure and temperature of metamorphism, we must first explore the various types of metamorphic reactions. Environmental conditions can include changes in temperature, pressure, and mechanical stress, and the addition and subtraction of chemical components. There are 3 factors that cause an increase in pressure and the formation of metamorphic rock. 49. Marble: Marble is metamorphosed limestone. Although different rocks can contain the same minerals, they are classified based on the way in which they were formed. Linh Nguyen GEOL 1121 February 26, 2021 Video Journal: Metamorphic Rocks The convergence of the plates gradually heaved up the rocks of Northeastern North America to create the Appalachian mountain range, pushing the rocks into huge flat-lying folds called “Nappes.” In order to refer to the initial rock occurring before metamorphism, geologists use the term "Protolith." By metamorphism, granite has often been changed to gneiss, the pressure having caused the granite to squeeze out or flow, so as to develop a somewhat stratified appearance, conspicuous minerals like black mica having been pressed out and gathered … Metamorphic rocks can be formed from igneous, sedimentary, or previous-ly metamorphosed rocks by recrystallization in the solid state. Cataclasite. Find out more in this short animation. Answering the question of importance requires a context. The development of sufficient heat and pressure to create changes to the crystalline structure of the original rock can Keep reading to know more…. Examples of metamorphic rocks include marble formed from limestone and slate formed from shale. It is formed by the metamorphism of limestone. How do metamorphic rocks form? Metamorphic rocks are classified by their mineral composition, the source rock, also known as a protolith, and the context (pressure, temperature, hydrological features, etc.) Marble is named as an example of metamorphic rock. save. Rocks are divided into three main categories: igneous, sedimentary, and metamorphic. Wave Rock is a natural rock formation that is shaped like a tall breaking ocean wave. When the pre-existing rocks (sedimentary or igneous rock) are subjected to increased temperature, pressure and action of chemically active fluids, metamorphic rocks are formed. share. Caterpillars change into a butterfly, they change forms. Metamorphic rocks form 12% of the earth’s surface. Extreme pressure or heat can squeeze or cook rocks so much that they change their character, turning into metamorphic rocks. Some examples of metamorphic rocks are Gneiss, Slate, Marble, Schist, and gneiss. The views in coffee bay will always make you stop and enjoy the peace and raw beauty of nature at its best. Most of the changes happen many, many years later. It forms the north side of a solitary hill, which is known as “Hyden Rock.” This hill, which is a granite inselberg, lies about 3 km (2 mi) east of the small town of Hyden and 296 km (184 … Rocks are constantly being recycled and go through several processes of chemical and physical changes. Dragon Eye, a metamorphic rock formation, was found in a stone mine in Lancashire, England. Close. Without careful examination by the Geologist, and the recognition of the subtle changes in mineralogy and texture, much time and money can be wasted by drilling past the economic basement. Most of the Earth’s crust is made up of metamorphic rock. Plate Tectonics and Mountain Building. Metamorphic Rocks. Metamorphic rocks ppt. Metamorphic rock is the result of the transformation of an existing rock type, the protolith, in a process called metamorphism. There are three main rock types: Sedimentary. This happens due to geologic uplift and the erosion of the rock and soil above them. Metamorphic rocks are those produced by the evolution of a rock above was subjected to an atmosphere energy very different from the formation (for example, more hot or cold, or by a significant change of pressure). Metamorphic rocks have been altered in the solid state from some pre-existing condition in response to significant changes in temperature, pressure, or chemical environment. Metamorphic rocks contain regular layers of crystals that sometimes have a wavy or zig-zag arrangement. Sedimentary rock is formed when ocean sediment is under pressure over a long period of time. They occur when sedimentary and igneous rocks become changed, or metamorphosed, by conditions underground. This causes profound physical and/or chemical change. FORMATION OF METAMORPHIC ROCKS. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's land surface. They are classified by texture and by chemical and mineral assemblage (metamorphic facies). They may be formed simply by being deep beneath the Earth's surface , subjected to high temperatures and the great pressure of the rock layers above it. Rock Cycle: is the set of natural process that form, change, break down, and re-form rocks. Metamorphic rocks formed under the lowest metamorphic temperatures and pressures (< 250 o C and <4 kb) can be regarded as very low-grade metamorphic rocks. create the three main types of rock: sedimentary, igneous, and metamorphic. Metamorphic rocks DATHAN C S. 2. Metamorphic Crispy Treat or Objective: To apply heat and pressure to edible sediments (cereals and candies) to simulate the metamorphic process to rock layers. Metamorphic rocks are created by the physical or chemical alteration by heat and pressure of an existing igneous or sedimentary material into a denser form. Metamorphic facies. Metamorphic rock. SEDIMENTARY AND METAMORPHIC ROCKS AND AGE DETERMINATION. Eclogite is a very beautiful rock. This force increases the pressure in this and surrounding areas. Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous , sedimentary, or earlier metamorphic form. Where can we find metamorphic rocks? Assorted small cereals-allow the students to form … Existing rocks are buried and forced toward the mantle, increasing heat and pressure. Metamorphic rocks. Magma metamorphic rock forming here heat Pressure from surface rocks Clay minerals neocrystallize into tiny micas. Clay minerals neocrystallize into tiny micas. This is the first step in the formation of metamorphic rocks. One ways rocks may change during metamorphism is by rearrangement of their mineral crystals. We know diamonds form deep in the earth where the earth’s lower crust and its upper mantle meet. Metamorphic rocks can also be formed from other metamorphic rocks. The metamorphic rock that is formed from sandstone is quartzite. It depends enormously on the chemical composition of the rocks, the temperature those rocks are exposed to, the length of time they are subject to those temperatures, and the degree of external pressure imposed - in other words, it depends. Metamorphic rocks are formed from the remelting and recrystallization of protolyth rocks, such as igneous and sedimentary rocks. Metamorphic rocks formed from other rocks that are changed by heat and pressure underground. Metamorphic rock is rock whose chemistry is changed by being exposed to internal heat and pressure from magma or tectonic activity. As the molten rock cools, it forms crystals within its rock makeup. 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