HIGHERGEOGRAPHYLITHOSPHERELIMESTONESCENERYThereareseveraltypesoflimestoneinBritain-thispresentationwillconcentrateonCarboniferousLimestoneandlookattheYorkshireDalesinparticular.Theselimestoneswereformedfromthefossilisedremainsofcountlessmarineplantsandanimals,suchascorals,whichlivedduringtheCarboniferousperiod,345-280millionyearsago.Theselimestoneswereformedfromthefossilisedremainsofcountlessmarineplantsandanimals,suchascorals,whichlivedduringtheCarboniferousperiod,345-280millionyearsago.TheseformerseabedsweremovedfromtheequatorduetocontinentaldriftandforcedupwardsduringtheHercynianorogenyormountainbuildingperiod,280-230millionyearsago.TheseformerseabedsweremovedfromtheequatorduetocontinentaldriftandforcedupwardsduringtheHercynianorogenyormountainbuildingperiod,280-230millionyearsago.BritainduringtheCarboniferous.Here,ontheGreatBarrierReefofftheAustraliancoast,istheworld’sbiggestexpanseofcoralreef.Braincoral,oneofthemainreefbuildingspecies.Braincoral,oneofthemainreefbuildingspecies.•TheDolomitemountainsintheAlps-these3000metrepeaksaremadeoflimestoneandwereoncethebedofthesea!Limestone-Chemicalweathering•Limestone=CalciumCarbonate•Rainwater=CarbonicAcid•CarbonicAciddissolvesCalciumCarbonate•ThisiscalledCARBONATION,atypeofsolutionweathering.•Or…H2O+CO2=H2CO3•CaCO3+H2CO3=Ca(HCO3)2CalciumCarbonateDiluteCarbonicAcidCalciumHydrogenCarbonate(Soluble)Carbonation/solutionweatheringalsoattacksbuildingsmadefromlimestoneCarbonation/solutionweatheringalsoattacksbuildingsmadefromlimestoneThistypeoflandscapeismorecorrectlyknownasGlacioKarst-glaciobecauseithasalsobeenglaciated,andkarstafteranareainSlovenia,whichgivesitsnametothiskindoflandscape.ThistypeoflandscapeismorecorrectlyknownasGlacioKarst-glaciobecauseithasalsobeenglaciated,andkarstafteranareainSlovenia,whichgivesitsnametothiskindoflandscape.Thedry,barrenlandscapeoflimestonecountry.Thedry,barrenlandscapeoflimestonecountry.•Followthearrowstoseetheroutetakenbystreams.
