Does limestone turn into shale?
85729
No, limestone becomes marble under enough heat and pressure. \n\nShale is formed from clay.\n\nBy the way, almost NO limestone is formed from chemical precipitates from seawater. It is formed from the remains and shells of living organisms, like clams, oysters, coral, algae, and bacteria.
855422
"Soda ash" is a common name for sodium carbonate, Na2CO3.  This chemical is very soluble in water.  Limestone is calcium carbonate, CaCO3, which is insoluble.  If you tried to use soda ash as an abrasive in a cleanser, it would simply dissolve as soon as it got wet.
739789
Breccia is a type of conglomerate, sedimentary rock, the only difference being that breccia's 'rock bits' are more angular than that of a conglomerate (usually smooth and round).\n\nWhen any type of conglomerate is metamorphosed, yes, it turns into a metaconglomerate. Remember that contact metamorphism means it'll only affect the areas closest to the point of contact of 'metamorphism'.
211211
You need to think about this in terms of the question, that is what one of these processes involves movement of sediment.\n\nWeathering does involve movement of sediment, since weathering includes lots of processes that break down rocks into smaller particles or even dissolve rocks. Dissolution of limestone by carbonic acid in water is weathering that 'moves' rock. Freeze-thaw weathering of sandstone breaks the sandstone into smaller particles that are carried away by water, gravity, and wind. \n\nDeposition is the end result of the process of moving sediment, and may be the only one that does not answer your question, but because it is part of the process of 'moving' sediment it probably counts. \n\nErosion definitely moves sediment. Soil, sand, and rock are eroded by moving water and transported to new locations. \n\nAbrasion results in 'moving' sediment. Glaciers abrade underlying rock and grind it into small particles. Wind blows sand grains against rock and abrades it and reduces it to smaller particles. \n\nI think the only correct answer here is "all of the above.”
1065526
Since I answered your other question that was the same question I will add a little more for this question, especially since there is an answer here that has some misinformation. My other answer is at:http://answers.yahoo.com/question/;_ylt=AskJhoayfOFbNHQxqcJCy5gjzKIX?qid=20060616000345AAmblWi\n\nCaves don't all form in limestone, and not all caves form as a result of rainfall dissolving carbon dioxide in the soil and dissolving the rock. Some caves have formed in quartzite (Brazil) some in salt (Israel), and many caves form in gypsum. Caves created by lava flows are refered to as 'psuedokarst' because they do not form by dissolution at all, but simply by lava hardening to form a tube that contains flowing molten lava, and as the lava flow ends the tube empties leaving a cave. \n\nThere are other types of limestone caves as well. Some of the more spectacular limestone caves formed as a result of dissolution by sulphuric acid. The source of the sulphur was somewhat related to petroleum deposits and as these acid waters moved through limestone they dissolved huge caverns. Other types of limestone caves form around islands and deep underground where a chemical contrast between fresh water in the ground, and salt water mixing with this causes limestone to dissolve. These are called mixing zone caves, and in the case of islands are often called flank margin caves. \n\nBesides the spectacular decorative formations in caves (see my other answer) there are hydrologic features in caves that are actually more important than stalactites and stalagmites. Some caves form tunnel-like passages with smooth walls and fairly straight long passages. Some of these are called phreatic tubes. A phreatic tube formed while it was completely filled with water. Other cave passages are known as vadose passages. These types of cave passages formed while partially filled with air, and often flood intermittently. \n\nSome caves form as a deep vertical pit. In some settings these vertical pits are younger than the cave they connect to at the bottom and were formed by corrosive water flowing rapidly down the sides of a fracture or joint in the limestone, gradually enlarging it to become a vertical cave. \n\nHere's link to a major cave (Carlsbad) that formed from sulphuric acid:\nhttp://www.nps.gov/cave/geology.htm\n\nHere are some links to gypsum caves:\nhttp://www.showcaves.com/english/explain/Index/Gypsum.html\n\nHere is a quartzite cave in Venezuela;\nhttp://charlesbrewercarias.orientese.com/cuevas/cuevacharlesbrewer/cuevacharlesbrewering.htm\n\nA salt cave in Israel:\nhttp://www.geology-israel.co.il/WEB%20PAGE/GEO1-2-10=5.HTML\n\nHere is a world's longest and deepest list for caves:\nhttp://www-sop.inria.fr/agos/sis/DB/database.html
949317
Limestone caves are formed by erosion.  Rainwater is slightly acidic and this erodes limestone.  Can start off as rock eroding from a small underground aquifer and can become a large underground river.  The rainwater that percolates through the ground and into the caves erodes the calcium in the limestone.  Where it drips off the roof of the cave, some of the calcite is deposited and this eventually forms a stalicitite.  Where it hits the floor of the cave it becomes a stalicmite.  There are examples of Limestone caves open to the public in Co. Clare and Fermanagh in Ireland although there are many more cave systems in theses areas.
172246
In order to create sedimentary rock from metamorphic rock you would first have to erode the metamorphic rock into sediment, then cement it together.  Pressure and heat will transform sedimentary rock into metamorphic rock, but they will not change metamorphic rock back into sedimentary rock.
276560
This is sedimentation. It isn't foundations sinking, although that can happen. It's weathering products. Soil production is one way that things can become buried, as pointed out in the first answer, but for the most part, it is windblown, mass-movement, or water deposition that puts things that were initially on the surface underground.\n\nIt is important to note that there are regions of net deposition and those of net erosion, so not everything will always become buried. Sometimes it is subject to weathering itself. Large stone amphitheaters will fall apart and the pieces will be subject to weathering with will make them look like shapeless boulders. The only other way to get large boulders anywhere is by downhill mass movement, glacial transport, flash floods or by people putting them there.
366249
Depends on the kind of rock.  Some of them probably won't dissolve easily -- you'd have to pulverize them first.
833869
limewater, turns chalky (forms white precipitate of calcium carbonate) when reacted with carbon dioxide. limewater is actually calcium hydroxide
780394
Yes it has something to do with acids.\n\nLimestone is CaCO3 deposits. If you look at the acid-base reaction between an acid and CaCO3 you can see that the carbonate ion favors being protonated and because of the fact that it's protonated state is very unstable it readily becomes water and CO2 gas. \n\n2 H+ + CO3 2- ---> H2CO3 ---> H2O + CO2\n\nThese two products of the reaction are very healthy for environments. However, since this reaction doesn't occur in areas of mostly granite, these bi-products aren't produced leading to the acid having a more detrimental affect on the surrounding environment.
704222
rain water is mildly acidic (carbonic acid) and so will dissolve minerals found in rock.  For example, if you look at an old building made from limestone the corners will be slightly round and the surface will be pitted.  This is because limestone is made from calcium carbonate which is easily dissolved by acids.\nThis is also the same effect which produces limstone caves and why the surface of rocks appear discoloured and weathered.
165216
Karst!       At least this is the terminology for the type of landscape created by dissolution of limestone, dolomite, gypsum and rarely quartzite. This is the landscape that contains caves, sinkholes, and  dolines.  \n\nThe process is initiated when rain water picks up carbon dioxide in the atmosphere and then picks up even more carbon dioxide as it seeps through soil. Soil often has a carbon dioxide content as high as ten percent so the water may become very acidic, since carbon dioxide combines with water to form carbonic acid.  As the water permeates downward it encounters bedrock. In limestone this bedrock is often fractured and where the water begins to penetrate the rock the carbonic acid will dissolve the limestone, which is calcium carbonate. These fractures will gradually enlarge creating an irregular zone where the soil contacts the bedrock. If the carbonic acid content of the water is high enough, or its penetration rate is fast enough, it will sink into the rock until it hits some sort of a barrier and there it will begin to dissolve away rock. This will eventually become a cave.  Other types of landforms that will develop are sink holes. Sink holes are large pits that form under the soil surface, sometimes by cave collapse, and sometimes just by dissolution. Some areas of the world are dominated by sinkholes, like parts of Puerto Rico and Jamaica's cockpit country. \n\nOther caves that have formed by this process are Mammoth Cave in Kentucky, USA, which is the worlds longest cave. Mammoth Cave is has about 367 miles in length that have been mapped so far, and mapping continues. Another famous cave is Carlsbad Caverns in New Mexico. Carlsbad Caverns was formed by a different type of dissolution when groundwater mixed with sulphur compounds, possibly during petroleum generation or migration, and formed sulphuric acid which is believed to have moved upwards into the ancient Capitan reef rock and dissolved enormous cave passages. Another type of cave forms where different types of groundwater such as saltwater and freshwater mix together in the subsurface. These are called mixing zone caves and they can form at great depths where the reaction between the two solutions creates a potential for dissolution of limestone. \n\nThe Arabika Massif, Western Massif has recently been mapped as the world's deepest cave at –2080m (6824 ft). The Optimisticeskaja in Ukraine is the world's third longest cave and the world's longest gypsum cave at 133 miles. \nhttp://www.pipeline.com/~caverbob/wlong.htm\n\nIn Brazil there is a cave formed by dissolution of quartzite, the Caverna do Centenário and I believe there are some examples of this in Venezuela as well. \nhttp://www.showcaves.com/english/br/caves/Centenario.html\n\nKarst landscapes tend to be some of the poorest in the world because they are difficult to farm. Other problems associated with karst are collapse of sinkholes, such as those that happen occasionally in Florida, taking houses, cars,and everything else down into the hole. Contamination of ground water is a difficult problem in karst areas because the spill of a contaminant can quickly move through a complex underground drainage system in ways that are difficult to predict unless there has been considerable dye tracing of the karst system. One fear of karst scientists around Mammoth Cave is that a spill of a dangerous material on the nearby interstate could contaminate large parts of the cave system within hours or days. \n\nAs for other less dramatic effects of bedrock dissolution, most rainwater does pick up some rock as it percolates downward toward the water table. Most often this solute ends up in the groundwater and is the reason some well water is described as 'hard' water since it has a taste that is given to it by the dissolved minerals. In most areas this dissolution is so insignificant that it does little to change the land surface.
1100334
This is a very common name for caves, so it is hard to be certain of which Crystal Cave you are asking about. There is a Crystal Cave near Cherokee County that is part of a cave preserve that is most certainly a natural cave. It is gated and locked and not open to the public as far as I know. I can find no references to a "Cristal" Cave. \n\nIt is not uncommon for a cave to have formed during a period of time many thousands or even millions of years ago when the climate of a the area was much different than it is today. For example, during the Eocene about 38 million years ago the area where Oklahoma is now had a paratropical climate. (see: http://www.scotese.com/earlyeoc1.htm)\nThere are many caves in desert climates that formed long before the area became a desert. Consider some of the spectacular caves in southern Arizona such as Kartchner Caverns:\nhttp://www.pr.state.az.us/Parks/parkhtml/kartchner.html\n\nIn the northwest part of Oklahoma there are many caves formed in gypsum. In other parts of the state there are caves in limestone. The hardness of the rock has nothing to do with the formation of a cave. In both limestone and gypsum, caves are formed by dissolution of the rock by water. In limestone caves this process is aided by carbonic acid which forms in overlying soil when rainfall dissolved carbon dioxide. This acidic water attacks the limestone and forms caves.  Limestone frequently has fractures and joints within the rock that are the initial paths of water flow, and as these enlarge they form connected paths that often grow into a cave. If the process goes on for enough time, the limestone dissolves away completely. However, in many cases the cave forms and then climatic changes or changes such as geologic uplift bring cave formation to a halt. The cave is preserved and is no longer actively forming. \n\nTo see some more informatin about cave formation:\nhttp://www.speleogenesis.info/\n\nHere is an animation that illustrates perfectly how a cave can form and then become dry:\nhttp://www.classzone.com/books/earth_science/terc/content/visualizations/es1405/es1405page01.cfm?chapter_no=visualization
165682
A complete answer to this question would require a very large book.  You will need better focus for a short answer.\n\nAcids dissolve most minerals and rocks.  Even water dissolves rocks or rock constituents over a long period of time.  There is fabulous erosion in calcium rich rocks creating tunnels and underground chambers...\n\nAcid rain enhances this process greatly.  Virtually all the salts in the oceans came by the erosion of rock salts over aeons of time spent under the never ceasing rainy seasons.\n\nSome conditions are rock forming or metamorphosing, others are rock dissolving.\n\nHeat and cold are also factors in the deterioration of rock, making it more vulnerable to water and acid rain.\n\nThere are many fabulous websites on rocks and minerals and gemstones.  Just Google some of that and you will pull up two or three super-excellent ones.\n\nTry also Googling "rock geological processes."  Keep it in quotes.
467715
Fine grained orthoquartzite formed by cementation of shale or siltstone with silica.
393590
Well, sedimentary has "sediment" in it. You know, the yucky mud stuff on the bottom of a river or stream. That's what sedimentary rocks are made of.\n\nIgneous looks like ignite, which is to start a fire. Volcanoes have red-hot magma in them, and that's what igneous rocks are formed from.\n\nA metamorphosis is a change from being one thing to being something else (like a caterpillar becoming a butterfly.) Metamorphic rocks are formed when other rocks are transformed by heat and pressure deep withing the earth's crust. \n\nI know you probably wanted some kind of clever mnemonic device, but in this case all you have to do is remember the meanings of three common words.