Las características morfológicas de granito

Althoughgraniteisagoodmaterialforbuilding, overflowasthegraniteinsomeareasbutofradon, occurringradioactivegas físicamente. Radonwillmakepeoplesuffering fromlung cáncer, cancerdeathsareradonconcentration de thedeadoflung de 13% de Hong Kong.

Quartzandfeldspar-richcoarsegrainorgrainintrusiverocksarethemostcommonplutonic rocksintheEarthand #39; s corteza, formedbymagmadeepin theEarthand #39; s crustcooled. Duetopavingstonesandbuildingstoneandgraniteminingwasanimportantindustry.Graniteveinsorrockbed,morerepresentativeisirregularrockscalevariesgreatly. Maincomponentsarefeldspar, plagioclaseandalkalifeldsparareusuallyveryrich, therelativeabundanceofthetwointoagraniteclassificationbased. InmostGranites, wheretheratioof thetwotypesoffeldsparareless than1/2.Fall intothiscategoryoftheUnited Estados, EasternandSouth-occidental, Central, sur oesteInglaterra, theBalticshield, FranceWestandCentral, Spainmostofthegranite, andmanyotherareas. Plagioclasegreatlyexceedsanalkali-feldspargranite, Unidos Statesinsomeareasin theWestcommon.ContentofalkalifeldsparthanplagioclasegraniteproducedinNewEngland,theUnited KingdomandNorwayOsloareainmanylocations, butisasmallerrock, developedaverywide rangeinNorthernNigeria.Rockquartz contenido en menos de 20% no es calledgranite, darkmineral (maficminerals), contenido de themaximum trata de 20%(byvolume). GraniteislessthemainmineralsareMuscovite, biotita, hornblenda, pyroxeneorrarefayalite. Puede beproducedinanytypeofbiotiteingranite, y thoughsometimessmallamounts. Sodiumamphiboleandpyroxene (ironofsodiumsodiumamphibole, anfíbol, Aegirina) aretypicalofalkalineGranites.Ifnoneinthetwotypesoffeldsparcontentmuchhigher thantheother, es unlikelytobethemainmineralhornblende, piroxeno, darkmineralisusuallyofbiotiteorMuscovite, orboth.