i need facts about chemical weathering?
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http://www.cartage.org.lb/en/themes/Sciences/Earthscience/Geology/Soils/FormationSoils/WeatheringSoils/ChemicalWeathering/chemicalweathering.htm\n\nhttp://cse.cosm.sc.edu/hses/Weather/ChemWeat/frames.htm\n\nhttp://en.wikipedia.org/wiki/Weathering\n\nhttp://visearth.ucsd.edu/VisE_Int/platetectonics/chemweath.html\n\nhttp://regentsprep.org/Regents/earthsci/units/weathering/weathering.cfm\n\nsearch chemical weathering on the net.
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Generally sandstones and quartzites are more weathering resistant. They tend to form mountains and ridges. Limestones and shales tend to weather more and form valleys. They can't hold a mountain up. \n\nDifferential weathering is where different formations or even bedding within the same formation, weather at different rates. Softer, less competent rocks weather faster than harder, more substantial rocks. Look at a road cut, some rocks stick out like massive sandstones, and underlying shales have weathered back into the hillside. The rocks have experienced the same weathering forces, but the shales have weathered faster. Look at a cross-bedded sandstone. Some bedding is prominent and sticks out, some has eroded back in the formation. Both are differential weathering.\n\nIn the big picture, the rocks on a mountain have resisted weathering, where the rocks in the valley floor have succumbed, Differential weathering.\n\nThe last part of your question; think of a cemetery. Which gravestones last the longest? Lots of pink granite ones, huh? Granite is a very hard metamorphic rock. It is the most resistant to weathering. Marble is metamorphosed limestone. Much harder than limestone, but still CaCO3 (Calcium Carbonate). Rain is slightly acidic, so marble will weather out, but very slowly. Sandstone is a sedimentary rock, softer than granite or marble. So there is your answer.\n\nI hope this helps.
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I hope this helps:\n\nhttp://chemistryformulas.com/
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This might help :)\nhttp://www.chemicalforums.com/index.php?board=8;action=display;threadid=3263
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http://chemlab.pc.maricopa.edu/PERIODIC/periodic.html\n\nHere you can click on an element and see facts on it.\n\nCa<Cr<W
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Try this one.\nhttp://chemlab.pc.maricopa.edu/periodic/stowetable.html
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These links give info on sulfate analysis:\n\nhttp://ecorestoration.montana.edu/mineland/guide/analytical/chemical/water/sulfate.htm\n\nhttp://www.csudh.edu/oliver/che230/labmanual/gravsulf.htm\n\nhttp://chemweb.calpoly.edu/chem/125/125LabExp/SulfateAnalysis/SulfateAnal.html
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Mass Wasting\n\nhttp://gpc.edu/~pgore/geology/geo101/masswasting.html\nhttp://seis.natsci.csulb.edu/bperry/Mass%20Wasting/Introduction_to_Mass_Wasting.htm\nhttp://www.tulane.edu/~sanelson/geol204/masswastproc.htm\n\nWeathering Vs. Erosion\n\nhttp://www2.nature.nps.gov/GEOLOGY/usgsnps/misc/gweaero.html\n\nWeathering\n\nhttp://gpc.edu/~pgore/geology/geo101/weather.htm\nhttp://jersey.uoregon.edu/~mstrick/RogueComCollege/RCC_Lectures/Weathering.html\nhttp://www.physicalgeography.net/fundamentals/10r.html\n\n\nErosion\n\nhttp://geography.about.com/od/physicalgeography/a/erosion.htm\nhttp://en.wikipedia.org/wiki/Erosion
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http://en.wikipedia.org/wiki/Soil_life
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weathering is where the material is actually broken down where as erosion is what moves it to another place
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Check this link... Has good info...:\n\nhttp://en.wikipedia.org/wiki/Plastic
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Try Wikipedia.org...Qualitative inorganic analysis. I was just there.
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http://en.wikipedia.org/wiki/Tempering\nhere is an entire article about tempering.
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I think this may help you:\nhttp://www.counteractrust.com/types%20of%20corrosion.htm\n\nor this:\nhttp://www.eaa1000.av.org/technicl/corrosion/types.htm\n\nThere are a great many "types of corrosion" but generally for any given application there will be only a few types that are relevant.
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(1)FIRST TO KNOW THAT WEATHER REACTION IS EXO OR ENDO-THERMIC .\n(2)QUANTITY OF REACTENTS.\n(3)QUALITY OF REACTANTS.\n(4)TIME OF REACTION.\n(5)TEMP. OF BATH DURING REACTION.\n(6)RATE OF REACTION DURING PROCESSetc etc.
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Here are a few sites that do info on it.\n\nhttp://www.cornishconcrete.co.uk/html/architectural/cast-and-reconstituted-stone.html\n\nhttp://www.trentconcrete.com/products/reconstructed_stone_cladding.htm\n\nhttp://www.architectural-cladding-association.org.uk/index.html\nand \n\nhttp://www.amaresearch.co.uk/Cladding03.htm
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Spend some tim browsing this search engine specific to chemical industry\nhttp://www.icissearch.com/\nThey have most of the answers you're looking for.