wut is the rock cycle?
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The rock cycle is the continuous movement of rock from one type to another. These processes occur over long amounts of time. All rock started out as igneous. From there, rock can then become sedimentary, metamorphic, or igneous again in any order.\n\nIgneous --> Sedimentary:\nIgneous rocks break down through weathering processes. The broken down rock becomes sediments which are deposited by wind or water. Layers of sediment build up on top of each other. Pressure, along with dissolved minerals, help to "glue" the rock together.\n\nSedimentary --> Metamorphic ("change form"):\nIf the pressure is great & enough heat is applied, metamorphism can occur. This causes the rock to become more compact & dense. If too much heat is applied then the rock will melt. See below.\n\nMetamorphic --> Igneous:\nIf heat is applied to the point of melting, the rock will go though the igneous phase again.\n\n:)
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http://en.wikipedia.org/wiki/Kreb%27s_cycle
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For thousands, even millions of years, little pieces of our earth have been eroded--broken down and worn away\nby wind and water. These little bits of our earth are washed downstream where they settle to the bottom of the rivers, lakes, and oceans. Layer after layer of eroded earth is deposited on top of each. These layers are pressed down more and more through time, until the bottom layers slowly turn into rock.
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Physical and Chemical weathering of rock \n\nerosion is only related to the transport of rock and sediment
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Geology is an earth science and is the study of rocks and minerals.
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MAGMA is the molten rocks and minerals below the Earth's crust.\n\nLAVA is what we call it when it reaches the surface of the Earth through means such as a volcanic eruption.\n\nLAHAR is what we get when the lava flows into flowing body of water such as rivers and streams.
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woohoo geology... lets see if I remember anything...\n\nOkay here is a basic thing, the composition of rocks, especially it's silicate level, can tell us much about the molten/semimolten layers of Earth.... Okay I was enver very good in this subject, so look here...\nhttp://en.wikipedia.org/wiki/Geology
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You've been given exhaustive lists, copied directly from websites without giving proper citation I imagine. \n\nHere is how to think about this question so that you can recall and understand the answer, without just memorizing a bunch of rock names.\n\nUse the rock cycle. Igneous rocks are of two groups, those formed within the earth and those formed by volcanism.  The volcanic rocks will show signs of that volcanism and will be things like black columnar basalt found in massive flows. Obsidian (volcanic glass) that flowed as liquid, scoria and pumice which are like foam because the dissolved gases expanded and made them bubble as they hardened. The other igneous group formed under the earth's surface, and includes things like granite where you can see the crystals that formed as it cooled and solidified. \n\nSedimentary rocks are also in two major informal groups (and a minor third). The first group of sedimentary rocks is clastics. These are formed by weathering, transport and deposition. Weatherings breaks down rocks like igneous, metamorphic and even sedimentary rocks and transport by wind, water, or gravity deposits these rocks as accumulations of clasts, (thus clastics). They become sandstone, shale, and conglomerate. The other major sedimentary group is carbonates. These rocks are 'born' because they are formed by living things. Ocean environments (and lakes too) have many organisms that make shells, corals that make reefs, and algae that make fine carbonate sediments (known as carbonate mud). Even bacteria get into the act helping to precipitate carbonates in many ocean environments. The third group of sedimentary rocks is those that are dissolved by water and deposited by evaporation or precipitation. These include gypsum, halite, sylvite, and many more. \n\nMetamorphic rocks all start life as one of the previous groups. You can metamorphose a granite into a granitic gneiss by burial, pressure and heat. You can metamorphose a basalt into an amphibolite. You can make limestone into marble. Sandstone turns into quartzite.\n\nRemember the rock cycle, associate the rocks as they move through it, and you won't have trouble remembering examples of rock types. Also don’t get tripped up by the difference between a mineral and a rock. Geologists sometimes use the two terms identically, but there is a formal difference between a rock (which is an impure mixture) and a mineral that is chemically consistent.
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It's a very nice rock. Oh, and read this: \nhttp://en.wikipedia.org/wiki/RNA_world_hypothesis
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zonealarm rock lol\nnd beware of the web
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First, to all those who don't know what a dike is...\n\nA dike or dyke is an intrusive igneous body of rock.\n\nMagma will branch out from the magma chamber though breaks or fractures in the pre-existing rock layers. When it cools, intrusive igneous rocks form.\n\nDIKES, in particular, form when magma intrudes into existing rock strata or layers & then hardens. SILLS form in much the same way with one difference.\n\nDIKES cut across strata whereas SILLS form parallel to the rock layers.
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Igneous rocks are formed when molten rock (magma) cools and solidifies, with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks. This magma can be derived from either the Earth's mantle or pre-existing rocks made molten by extreme temperature and pressure changes. Over 700 types of igneous rocks have been described, most of them formed beneath the surface of the Earth's crust. The word "igneous" is derived from the Latin ignis, meaning "fire".
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Greater the height of an object, greater is its potential energy (PE).  As a cycle speeds up while going downhill, its loses height; its PE decreases but it is converted into Kinetic Energy (KE).\n\nPE = mass  X acceleration due to gravity X height.\nor, PE =mgh\n\nTherefore, considering the base at the bottom of the hill, the height of the rock at the bottom is zero, and then, PE = m X g X 0=0\n\nWhereas, PE of the rock sitting at the top of a hill would be positive (calculate it using the formula PE=mgh) and thus, greater than the one at the bottom.
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This is the Wilson Cycle, and it is driven by plate tectonics. \n\nContinents are composed of relatively light weight felsic igneous rocks such as granites and granodiorites. Ocean basins are composed of mafic igneous rocks like basalt and gabbro that are heavier than continental crust. Since the earth's mantle is plastic, these different masses of rock tend to 'float' at different levels. This is called isostacy.\n\nOceanic plate motion originates at the mid-ocean ridges, pushing oceanic plates outward towards the continents. This motion and force is far from being uniform from one ocean basin to another, and is not even consistent along the length of the mid-ocean spreading centers. \n\nWhere oceanic plates meet continental plates there is a convergent plate boundary and generally this leads to subduction of the oceanic plate. There is considerable force however, and the style of subduction does vary. Since the forces that are being applied, as well as the resistance of the continental plates all are varied, there are inequities that cause the continents to move in one direction. Eventually this motion results in a collision of continents called a supercontinent because continents will not subduct under one another. India and Asia, and the Himalayas are a great example of a continental convergent plate boundary. Eventually the convection forces that cause the supercontinent to form will begin rifting it apart again creating new smaller continents. \n\nHere is a model of the Wilson Cycle:\nhttp://csmres.jmu.edu/geollab/vageol/vahist/wilsonsimp.html
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I think you mean mass wasting.   Mass wasting, also known as mass movement or slope movement, is the geomorphic process by which soil, regolith, and rock move downslope under the force of gravity. Types of mass wasting include creep, slides, flows, topples, and falls, each with their own characteristic features, and take place over timescales from seconds to years
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Rock is a naturally occurring aggregate of minerals and/or mineraloids. Rocks are classified by mineral and chemical composition; the texture of the constituent particles; and also by the processes that formed them. These indicators separate rocks into igneous, sedimentary, and metamorphic.\n\nMinerals are natural compounds formed through geological processes. The term "mineral" encompasses not only the material's chemical composition, but also the mineral's structure. Minerals range in composition from pure elements and simple salts to very complex silicates with thousands of known forms (organic compounds are usually excluded)
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but before pangaea there was a super continent called gondwanaland.\n\nIf you look at the Wilson Cycle, this is a cyclic process that has repeated itself a number of times.