Sandstone yog cov pob zeb uas raug zom zaws, feem ntau yog tsim los ntawm cov xuab zeb ua ke, ib qho ntawm 0.05 2 hli inch, cov xuab zeb txheej txheem ntau tshaj 50%, ruaj khov qauv, feem ntau yog xim daj lossis liab, uas yog silicon, calcium, av nplaum thiab hlau oxide. Feem ntau sandstone yog tsim los ntawm quartz los yog feldspar
Morphological yam ntxwv
Sandstone yog tsim nyob rau hauv lub phiab los ntawm weathering, denudation thiab kev thauj mus los ntawm pob zeb. Pob zeb yog tsim los ntawm cov khib nyiab thiab cov khoom ntaws. Minerals: quartz, feldspar, dawb mica, calcite, av nplaum pob zeb, dolomite, oolite, chlorite, thiab lwm yam. Lub muab tub lim muaj ob yam khoom: cementitious thiab clastic. Cov khoom sib thooj ntau muaj silica thiab carbonate cementation; Lub heterogeneity tsuas yog hais txog cov av nplaum los sis cov ntaub ntawv puas tau tso nrog cov khoom ntiag tug
Sandstone yog ib lub pob zeb ntawm cov pob zeb, uas yog tso rau ntawm cov dej los ntawm dej los ntawm cov pob zeb pob zeb, uas muaj zog los ntawm kev txav ntawm ntau txhiab xyoo. Tom qab ntawd, lub ntiaj teb ua pob zeb yuav txav mus rau hnub no cov mines. Txawm hais tias Tuam Tshoj tus tsiaj ntawm sandstone yog ntau heev, tab sis tus tswv yog concentrated nyob rau hauv sichuan, yunnan thiab shandong, qhov no yog sandstone ntawm peb loj cheeb tsam hauv Suav teb, tib lub sij hawm, hebei, henan, shanxi, shaanxi, kuj muaj, tab sis qhov khoom ras paub tsis siab, me me.
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Yam ntxwv: Sandstone, suab rwb thaiv tsev, kev ya raws, kev puas tsuaj, sab nraum zoov huab cua, dej yawg, tsis ntev ntxhuab, yooj yim los ntxuav, thiab lwm yam zoo av xuab zeb:
Qhov zoo: sandstone yog ib hom kev ua kom tsis muaj paug, tsis muaj hluav taws xob zoo tshaj plaws pob zeb, tsis muaj hluav taws xob rau tib neeg lub cev. Nws yog kev ruaj khov, ua haujlwm tsis txaus, nqhis, absorbance, tasteless, radiation-free, fadeless, sov so thiab txias thaum caij ntuj no, sov thiab elegant; Piv nrog ntoo, nws tsis yog deformed, deformed, tsis decomposed thiab colorfast. Khoom muag yooj yooj yim, ntev li nrog marble kua nplaum yuav ua rau carvings ntawm phab ntsa, cov khoom siv ntoo dai kom zoo nkauj txuas, tom qab qauv qhov chaw ua si zoo dua, kov cov khoom siv pob zeb pob zeb thiab ua kom tsis muaj nqi. Cov tsev uas kho kom zoo tsis tas yuav ntxiv lwm cov txheej txheem thiab xim rau nruab rau ntawm cov khoom ncaj nraim mus rau ntawm phab ntsa.
Cov khoom siv ntawm cov khoom, ib hom ntawm sov thiab tonal zoo nkauj, yooj yim thiab elegant thiab sov so, harmonious thiab tsis poob lub khoom kim heev; Nws muaj qhov zoo nkauj ntawm cov pob zeb, kev ntxhib los mos, thiab xim thaij duab zoo nkauj, nplua nuj xim, ze rau qhov, qub thiab hnyav, thiab nws muaj ntau yam hauv cov pob zeb, uas yog hu ua "lishi".
Lub hauv paus ntawm kev faib
Raws li txoj kab uas hla ntawm cov xuab zeb tau muab faib ua ke: giant cov xuab zeb sandstone (2 ~ 1 hli), coarse grained sandstone (1 ~ 0.5 hli), nruab nrab grained sandstone (0.5 ~ 0.25 hli), nplua nuj hmoov hlau (0.25 ~ 0.125 mm ) thiab sandstone (0.125 ~ 0.0625 mm), qhov saum toj no tag nrho cov hom sandstone, cov ntsiab lus yuav tsum yog siab dua 50%.
Kev faib tawm ntawm pob zeb hom
Los ntawm (ntxhia pob zeb) yam: cov quagzeb sandstone, quartz thiab ntau yam siliceous pob zeb tawg paj nruag tshaj 95% ntawm tag nrho cov theem ntawm cov pob zeb ntawm cov pob zeb pob zeb) thiab quartz sandstone, feldspar sandstone (clastic muaj pes tsawg leeg yog quartz thiab feldspar, quartz cov ntsiab lus qis dua tshaj li ntawm 75%, feldspar los ntawm ntau tshaj 18.75%) thiab feldspar sandstone, lithic sandstone (cov ntsiab lus quarantz detrital tsawg dua 75%, cov ntsiab lus lithic feem ntau tshaj 18.755, qhov txiav / feldspar piv ntau dua 3) thiab lithic sandstone.
