Why is Geode sedimentary chemical?
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Geodes form by precipitation of minerals from solution. That would make it a chemical sedimentary rock. \n\nThey are not often found in intrusive igneous rocks because the geode needs a vug, or a cavity within the host rock in order to form. Intrusive igneous rocks rarely have vugs, but do sometimes have large fractures or joints that can be crystal lined similar to a geode. \n\nGeodes are more likely to be found in extrusive igneous rocks that have vugs formed by gas that comes out of solution as the rock cools rapidly (in comparison to intrusive igneous rocks). These vugs eventually may fill with fluid which carries dissolved calcite, quartz, and other minerals. As the fluid becomes oversaturated different minerals will drop out of solution forming layers of the geode and finally forming crystals within the center of the geode. \n\nThe similar things that form in sedimentary rocks are often referred to as concretions, and these are seldom hollow. They may be composed of calcite, chert, or other minerals, and will often have concentric rings within them. However, they do not form within a vug or cavity, but instead appear to grow outward. Septarian concretions have crystalline filled fractures inside them that makes them quite attractive. Concretions appear in most cases to form from a nucleus and grow outward, unlike a geode's growth inward.
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Most of the materials in mud are at least twice as dense as water and settle out rather quickly. Very small particles stay suspended longer. The ocean currents are not nearly as turbulent as river currents since it has much less obstructions to flow around, so there is less energy to keep the particles suspended.\n\nHowever, the correct answer is "it does". The ocean does mix with the earth and form mud, as a trip to a seashore with sediments fine enough to form mud will show you. Even when the sediments settle to the bottom they are still mud. It just isn't enough to fill the entire ocean, and is often covered with clear water that the sediments have settled out of already.
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Error and Deposition by Gravity\n\nGravity is the force of attraction that exists between all objects. Because Earth has great mass, other objects are attracted to Earth. This makes gravity a force of erosion and deposition. Gravity causes loose materials to move down a slope. When gravity alone causes materials to move downslope, this type of erosion is called mass movement. \n\nA slump is a mass movement that happens when loose materials of rock layers slip down a slope. In a slump, strong rock or sediment lies over weaker materials. \n\nCreep gets its name from the way sediments slowly inch their way down a hill. \n\n"Falling Rock" sign warn of another type of mass movement called a rockslide. Rockslides happen when large blocks of rock break loose from a steep slope and start tumbling. As they fall, these rocks crash into other rocks and knock them loose. \n\nMudflows usually occur in relatively dry areas where weathering accumulates thick layers of dry sediments. When heavy rains fall in these areas, water mixes with sediments and forms a thick pasty substance. Gravity causes this mass to slide downhill\n\nGlaciers\n\nGlaciers are agents of erosion. When snow doesn’t melt, it begins piling up. The weight of the snow becomes great enough to compress its bottom layers into ice. The ice on the bottom partially melts and becomes putty-like. The whole mass begins to slide on this putty-like layer, and it moves downhill. \n\nContinental glaciers are huge masses of ice and when snow  once covered up to 28 percent of Earth they were called ice ages. Today glaciers cover only 10 percent of Earth, mostly near the poles in Antarctica and Greenland. \n\nValley glaciers occur even in high mountains where the average temperature is low enough to prevent snow from melting during the summer. \n\nGlacial Erosion\n\nAs they move over land, glaciers are like bulldozers, pushing loose materials out of their path. Eroded sediments get pushed in front of a glacier, carried underneath it and piled up along its sides. When glacial ice melts, water flows into cracks in rock, refreezes in these cracks, expands and fractures the rock into pieces. These rock pieces are then lifted out by the glacial ice sheet. This process, called plucking, results in boulders, gravel and sand being added to the bottom and sides of a glacier. As a glacier movers forward, plucked rock fragments and sand at its base scrape the soil and bedrock, eroding even more material than ice alone could. When bedrock is gouged deeply by dragged rock fragments, these marks called grooves, are deep, long, parallel scars on rock. Less-deep marks are called striations.\n\nGlacial Depostion\n\nWhen glaciers begin to melt, they no longer have enough energy to carry much sediment. The sediment drops or is deposited on the land. This mixture of different sized sediments is called till. When melting of a glacier exceeds snow accumulation, the glacier retreats or starts to melt. Material deposited by the melting water from a glacier is called outwash.\n\nWind\n\nWind erosion occurs when wind picks up loose material and transports it to other places. Wind erodes Earth’s surface by deflation and abrasion. When wind erodes by deflation, it blows across loose sediment, removing small particles such as clay, silt, and sand, leaving coarse material behind. When these windblown sediments strike rock, they erode by abrasion.\n\nSand storms occur when wind-blown sand grains form a low cloud, just above the ground. Dust storms occur when wind carried dry soil over hundreds of miles. \n\nTo reduce wind erosion, windbreaks are planted to catch blowing soil. Along many steep slopes, seacoasts and deserts, people plant vegetation to hold the soil with plant roots. Sediments blow by soil eventually deposited and develop into either a loess or a dune. Fine-grained sediments of soil deposited on hilltops and in valleys are loess. Sand mounded in front of an obstacle, such as a rock, produces
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The gas is mostly sulphur dioxide not carbon dioxide. Check out the dust question the earth is being compressed more and more each day as extra terrestrial dust falls on it. Under the crust this pressure and the action of the sun and moons gravitational pull heats the rock until it melts, causing chemical reactions as well as some radioactivity that creates more pressure. As the plates of the earth (pieces of the crust) shift to accomodate these changes, the crust may become thin enough for the internal pressure to burst through it, VOLCANO!
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Geodes (Greek geoides, "earthlike") are geological formations common to the United States (Indiana, Iowa, and Kentucky), Brazil, and Mexico. Essentially rock bubbles with internal crystal formations, the exterior of a geode is generally limestone or a related rock, while the interior contains quartz crystals and/or chalcedony deposits. Other geodes are completely filled with crystal, being solid all the way though. These types of geodes are called nodules.\n\nGeologists do not yet have a widely accepted theory about how geodes are formed, but it is believed geodes can form in any cavity that is buried. These can be bubbles in igneous rocks, pockets under tree roots, bubbles in lava after a volcanic eruption, or even animal burrows. Over time, the external wall of the cavity hardens, and dissolved silicates and/or calcites are deposited on the inside surface. Over time, this slow feed of minerals allows crystals to form inside the hollow chamber. Then, over millions of years, the geode makes its way back to the surface through normal geologic processes.\n\nFollow the link for more information.\n\nhttp://en.wikipedia.org/wiki/Geode
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A tree becomes "petrified" through fossilization.  First, a tree that falls over must be subsequently buried by sediments (mud, sand, landslide, etc.) before decomposition occurs.  \n  After burial, the pressure of overlying sediments spurs ion substitution, which removes the carbon "life-like" compounds of the tree material and replace them with "rock-like" compounds, usually with alot of silica, calcium, potassium, or iron-rich compounds.  \n  Next, erosion must wear the parent rock or matrix so that people like you and I can find the petrified wood.
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geodon is labeled as an antipsychotic, for bipolar, mania, schizophrenia, or agitation.  drowsiness is a side effect, and sometimes doctors use medications for off-label uses.  talk with your doctor.
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general characteristics of clastic sedimentary rocks:\n\nthey may...\ncontain layers\nbe dull & earthy in appearance\ncontain clastic material (small grains of rock)\ncontain fossils\nrub off easily b/t fingers\nloosely "glued" together w/ minerals such as iron oxide & calcite
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Because flourine is an element. Not a compound.\n\npeace\nvixklen
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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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how related is your question with Zoology?\nAnyway\nmudstones are\nPhyllite\nShale\nSlate\nShist\n(depeding on how much degree original sedimentary rock is metamorphosed)
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Chemical erosion (also called weathering) occurs when rock or other materials are changed into smaller pieces by chemical processes.  These processes include direct oxidation (such as iron rusting), chemical dissolving (such as acid rain reacting with marble or limestone) and other chemical processes.  \nSome good site to look at are below:
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It depends on the rock composition and it depends on the acid strength.  Calcite will bubble with Hydro-chloric acid.
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No.....pH is related to the hydrogen ion concentration and well that kind of forces you into an aqeous environment. Organic compounds would therefore in many cases not have a pH because they have no hydronium and you can't take the log of 0.  Now rocks react with a bit of water and impart a pH but once again you have to have water at the party.  So once again the answer is NOPE!
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It is likely too salty.\n\nThe Opeche Shale in North Dakota is characterized by bedded evaporites and siliciclastics (clay, sandstone). The evaporite beds are the salt (halite, gypsum, anhydrite) left over as  ancient playas dried up. \nhttp://jsedres.sepmonline.org/cgi/content/abstract/70/1/159\npubs.usgs.gov/ha/ha743/ha743Sheet3.pdf - Supplemental Result\n\nThe ponderosa pines of the Black Hills like to grow on limestone cliffs, clay soil, and red standstone.ubs.usgs.gov/sir/2005/5160/PDF/sir2005-5160part7.pdf - Supplemental Result -
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I'm going to assume you are asking about deposition of rock, but am unsure because this is under 'other' and not earth science. \n\nDeposition of rock in the marine environment occurs in at least three ways. The first is by transport, which can be by wind, water, gravity, or ice. Water from rivers carries sediment into ocean basins where it deposits forming deltas, and turbidite deposits on the deeper ocean floor. Wind carries sediment out over the oceans. Gravity causes landslides that often continue into the marine environment, and sometimes take place entirely within the marine environment. Icebergs often carry rock out over the ocean floor and as they melt the rock drops to the sea floor. These ice-transported rocks are known as erratics. \n\nMuch of the deposition of rock material, or what eventually becomes rock, in the marine environment comes from biological sources. Plankton die and sink to the ocean floor, coral reefs build huge platforms (Florida for example) that become limestone rock. Many marine organisms use calcium carbonate to form shells and other parts of their structure, marine algae often contain calcium carbonate, and many microscopic marine organisms precipitate calcium carbonate and some other minerals as part of their biological processes. \n\nChemical deposition also occurs in the marine environment, and deposits of calcium carbonate (very few, but some), salt (halite, sylvite, etc.), and calcium sulfate in the form of gypsum or anhydrite occur as a result of oversaturation conditions in ocean water. Often this deposition only occurs when special conditions exist that confine a portion of an ocean basin and allow the concentrations of dissolved minerals to build up. An example would be the Mediterranean Sea during the Messinian Salinity Crisis in the late Miocene.
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The empirical formula is derived from the mineral's structural (molecular) formula by using the published analysis of the mineral or deriving the analysis using basic rules.\nAtomic substitutions were analyzed by the following procedure if published analyses were not available. Adjustments were made to match the measured density with the calculated density if needed: \n(K,Na) = K0.75 Na0.25\n\n(K,Na,Cs)= K0.6 Na0.3 Cs0.1 \n\nRare Earth Elements (REE in formulae) were calculated based on the chondrite normalized abundances. This analysis used 144 for the REE atomic weight and 61 as the atomic number. \nSolid solution series minerals were calculated based on the mid-points of the accepted compositional range of the mineral..☺