Kev siv ntau ntawm Marble

Ib qho ntawm cov khoom tsim nyog tshaj plaws ntawm marble yog nws tsis pom cov leeg. Txawm hais tias qee qhov marbles muaj cov hlab ntsha loj, qee qhov tsis muaj xim. Txawm li cas los xij, txawm tias feem ntau dawb marble tuaj yeem muaj xim me me. Txawm hais tias nws cov xim, marble veining yog ib qho tshwm sim los ntawm cov pob zeb hauv av uas muaj nyob hauv limestone ua ntej nws tau hloov mus rau marble. Cov deposits zoo li nyob rau hauv cov khaubncaws sab nraud povtseg, thiab yuav ua tau hloov maj mam los yog ua heev.

Marble yog tsim los ntawm kev sib tsoo sab av loj, uas tsis tshua muaj siab thiab kub. Cov txheej txheem no tsim marble nrog ntau yam xim thiab qauv. Cov khoom siv no zoo tagnrho rau kev tsim thiab duab puab, thiab yog siv rau ntau lub hom phiaj. Marble deposits tau nthuav dav thoob plaws ntiaj teb, suav nrog Ltalis, Tim Nkij teb chaws, Qaib ntxhw, thiab Tebchaws Meskas. Ntxiv rau Mediterranean, muaj cov nyiaj tso rau hauv Canada, Tuam Tshoj, Is Nrias teb, thiab ntau lub tebchaws nyob sab Europe. Nyob ntawm seb hom marble koj tab tom nrhiav, koj tuaj yeem pom nws hauv ntau hom pob zeb.

Qhov sib xyaw tshwj xeeb ntawm carbonate cov zaub mov thiab limestone yog dab tsi muab marble xws li tus nqi. Nws tau cuam tshuam los ntawm kev kub ntxhov thiab siab ntawm lub ntiaj teb crust, uas ua rau muaj ntau yam xim thiab cov qauv. Marble cov leeg yog tsim los ntawm cov minerals sib txawv reacting rau siab. Yog li, nws muaj ntau yam xim, xws li dawb mus rau ntshav mus rau xiav, liab mus rau ntsuab. Txawm hais tias nws versatility, nws yog cov khoom siv tu qis tshaj plaws muaj.

Vim nws cov qauv crystalline, marble yog qhov ruaj khov heev thiab tuaj yeem polished rau lub siab luster. Marble tuaj yeem siv rau hauv kev tsim vaj tsev, monuments, sculptures, thiab txawm paving. Ob peb ntawm cov ntawv thov no tau teev tseg hauv qab no:

Cov huab cua huab cua kuj cuam tshuam rau marble, nrog rau qhov kub thiab txias, daus thiab nag. Nyob rau hauv ancient sij hawm, cov neeg ua hauj lwm ntawm marble quarries siv hlau saws txiav lub pob zeb, ncuav dej thiab txiv roj roj tshaj qhov txiav. Tom qab ntawd lawv yuav siv cov wedges thiab mallets los tsav cov kab sib sib zog nqus mus rau hauv lub pob zeb kom txog thaum nws tawg. Cov txheej txheem no tau nrawm dua thaum lub sijhawm kub kub, thiab kev hloov pauv ntawm qhov kub thiab txias tuaj yeem ua rau muaj kev ntxhov siab hauv cov khoom. Thaum marble yog weathered, nws yuav pib tawg thiab qhia tias deterioration.

Ntxiv rau nws cov durability,marblekuj yogzoo nkauj heev. Vim tias marble yog compressed heev, nws yooj yim rau carving thiab pleev xim. Sculptors los ntawm ancient sij hawm kuj pleev xim rau cov mlom nyob rau hauv marble muab lawv txoj sia.Thaum qee cov mlom marble raug rhuav tshem, cov sculptors tuaj yeem rov siv cov ntaub ntawv hauv cov tsev thiab lwm cov qauv. Thiab ua tsaug rau cov tswv yim no, tib neeg tau siv marble hauv cov tsev thiab cov duab puab rau ntau pua xyoo. Thaum koj tab tom xav txog qhov project loj tom ntej, nco ntsoov nyeem DK Qhov Kev Pom Pom Kev Qhia rau Marble Sculptures

Feem ntau, kev tsim kho kev lag luam siv lo lus "marble" los piav txog cov pob zeb uas tsis yog calcitic, loj heev uas pom nyob rau hauv lub ntiaj teb crust. Ib qho piv txwv ntawm hom pob zeb no yog Tennessee Marble, pob zeb pob zeb nplua nuj dolomite los ntawm Ordovician era. Vim nws muaj cov xim tshwj xeeb, geologists hu nws lub Holston tsim. Cov xim ntawm marble txawv nyob ntawm seb hom limestone siv los tsim nws.