Qhov sib txawv ntawm cov xuab zeb thiab pob zeb
Feb 23, 2021
Xuab zeb,tseem hu ua sandstone, yog muaj li ntawm cov pob zeb hauv av silica particles condensed thiab crystallized.Sandstone silica los ntawm calcium carbonate thiab hlau oxide sib xyaw ua kom sib xyaw ua cov qauv ruaj khov thiab nplua nuj lub zog, qee qhov chaw ntawm sandstone nws hardness yog ntau tshaj li granite, yog li kev tsim kho yog ntau lub sijhawm -consuming.Sandstone vim tias nws cov ntxhib nthuav dav nthuav dav, tshwj xeeb yog muaj zog sib zog, tshwj xeeb rau sab nraum zoov zeb loj carving ua haujlwm.Limestone muaj li ntawm limestone magnesium thiab calcium carbonate, sib piv rau sandstone, vim nws zoo thiab ntshiab dawb kev ntxhib los mos, kev ua kom yooj yim. yog siab, thiab yog ib qho kev xaiv thib ib rau cov sculptors los ua tus qauv.Qhov ntau ntawm limestone muaj fossilized plhaub thiab cov pob txha ntawm Marine lub neej; Cov khoom siv pob zeb no tau ua tiav me ntsis lossis nws tus kheej tau txaus siab ua kom zoo nkauj.Limestone tsim thaj chaw yog dav, xim thiab kev ntxhib los mos yog ntau heev, nws cov mos, yooj yim los ua me me carving rau ntawm txee, ntau haum rau cov pib tshiab xaiv carving.Thiab tsis haum rau sab nraum zoov zeb carving ua haujlwm, nyob rau hauv kev ua haujlwm, tsis tuaj yeem muab piv nrog cov xuab zeb.
