Qhov txawv ntawm Granite thiab Marble
Qhov sib txawv ntawm granite thiab marble thiab marble yog raws li nram no:
Ua ntej, cov duab sib txawv:
Granite yog pob zeb ntau tshaj plaws hauv pawg no, feem ntau yog lub teeb liab, lub teeb grey, grey-dawb thiab lwm yam. Nruab nrab coarse grain, nplua grain qauv, thaiv qauv. Kuj tseem muaj qee cov qauv plaque, cov qauv kheej kheej, cov qauv flaky thiab lwm yam. Cov zaub mov tseem ceeb yog quartz, potassium longstone thiab acidic oblique longstone, thaum cov ntxhia hauv nruab nrab yog cov mica dub, horned flint, thiab qee zaum me me ntawm flint.
Marble hu txhua yam ntawm ntau yam xim, siv los ua cov khoom siv kho kom zoo nkauj limestone. Dawb marble feem ntau hu ua Han Baiyu, tab sis dawb marble, uas txhais cov duab Western, kuj hu ua marble.
Qhov thib ob, yog vim li cas rau kev tsim yog txawv:
Granite yog tsim los ntawm melting thiab solidification ntawm pob zeb qhov chaw ntawm ntau yam khoom nyob rau hauv lub ntiaj teb crust. Qhov kev pom no ua ke ob qho kev nkag siab thaum ntxov ntawm lub hauv paus chiv keeb ntawm granite: magma txoj kev xav (uas tuav tau tias granite los ntawm crystallization ntawm magma) thiab kev hloov pauv (kev ntseeg tias granite yog pob zeb sedimentary nplua nuj nyob rau hauv silicon aluminium hloov los ntawm graniteization nyob rau hauv qhuav los yog dej. -muaj tej yam kev mob).
Marble yog lub pob zeb metamorphic tsim los ntawm qhov kub thiab txias siab ntawm cov pob zeb qub hauv lub pob zeb, thiab lub zog sab hauv ntawm lub pob zeb ua rau kev hloov ntawm kev ntxhib los mos ntawm cov pob zeb qub. Kev hloov pauv zoo yog hais txog kev hloov ntawm cov qauv, cov qauv thiab cov ntxhia hauv cov pob zeb qub, thiab cov pob zeb tshiab uas tsim los ntawm kev hloov pauv zoo yog hu ua metamorphic pob zeb. Marble feem ntau yog tsim los ntawm calcite, limestone, serpentine thiab dolomite, cov khoom tseem ceeb ntawm calcium carbonate, txog 50 feem pua. Lwm yam muaj xws li magnesium carbonate, calcium oxide, manganese oxide thiab silica. Marble feem ntau yog mos, uas yog txheeb ze rau granite.
Thib peb, kev siv sib txawv:
Granite feem ntau yog siv los ua cov ntxhia. Xws li cov mica dub thiab dawb huab huab, nws cov ntsiab lus nyob ze rau qhov sib npaug, tuaj yeem hu ua ob mica granite, yog tias cov ntxhia tsaus rau lub ntsej muag glitter feem ntau, ces hu ua angular glitter granite, yog cov ntxhia tsaus rau flint-based, ces hu ua flint granite, yuav luag tsis muaj cov ntxhia tsaus tuaj yeem hu ua dawb granite.
Marble muaj lub zog siab zog thiab zoo lub cev thiab tshuaj lom neeg, yooj yim rau kev ua, nrog rau kev loj hlob ntawm kev lag luam, kev nthuav dav ntawm daim ntawv thov, kev siv ntau ntxiv, hauv tib neeg lub neej ua lub luag haujlwm tseem ceeb. Tshwj xeeb tshaj yog nyob rau hauv lub xyoo caum dhau los los yog li loj-scale mining, kev lag luam kev lag luam, kev lag luam thoob ntiaj teb, tab sis kuj ua kom zoo nkauj panels rau hauv kev tsim kho kom zoo nkauj kev lag luam nyob rau hauv ntau qhov ntau, tsis yog rau cov khoom kim heev pej xeem vaj tse, tab sis kuj mus rau hauv lub tsev kho kom zoo nkauj.