Cov txaj tshwj xeeb uas muaj kuab heev tuaj yeem tsim los ntawm cov pob zeb ntuj. Muaj kev xaiv loj ntawm ntau hom, tab sis qhov twg koj xaiv nyob ntawm ntau yam. Qhov no suav nrog tsis tsuas yog cov duab thiab kev ntxhib los mos ntawm lub pob zeb, tab sis kuj nws cov durability, workability thiab xim. Sandstone yog ib lub pob zeb nrov tshaj plaws siv.
Cov xuab zeb twg yog qhov tsim nyog rau cov txaj txaj?
Cov pob zeb tawv tawv, tawv tawv nrog cov ntsiab lus quartz siab thiab xim dawb-grey yog qhov zoo tshaj plaws rau kev tsim lub txaj. Cov hom sandstone no yooj yim ua hauj lwm nrog thiab tib lub sij hawm muab lub vaj zoo tagnrho biotope rau kab thiab tsiaj me.
Sandstone yog dab tsi?
Sandstone yog ib feem tseem ceeb ntawm architecture, raws li lub facades ntawm ntau lub tsev nto moo tau tsim los ntawm cov khoom siv - suav nrog Strasbourg Cathedral, Berlin Cathedral thiab Semper Gallery hauv Dresden Zwinger. Sandstone yog ib qho ntawm ntau hom pob zeb hauv ntiaj teb thiab tuaj yeem pom yuav luag txhua qhov chaw - vim li ntawd, muaj ntau qhov chaw mining thoob ntiaj teb. Nws yog ib lub pob zeb uas hu ua mos sedimentary uas yooj yim ua haujlwm nrog.
Sandstone yog dab tsi?
Sandstone muaj - raws li lub npe qhia - ntawm solidified (cov kws txawj hais tias "cemented") xuab zeb, uas, nyob ntawm seb hom thiab keeb kwm, muaj ntau npaum li cas ntawm quartz thiab lwm yam sediment hais (xws li av nplaum, tab sis kuj cov seem. ntawm creatures). Qee zaum cov pob zeb loj dua txawm tias muaj cov pob txha pob txha, piv txwv li cov nroj tsuag ua ntej keeb kwm.
Sandstone muaj dab tsi?
Cov khoom ntawm sandstone tsis tuaj yeem raug npe tshwj xeeb vim lawv txawv heev nyob ntawm lawv cov muaj pes tsawg leeg. Feem ntau, sandstone yog ib lub pob zeb mos heev, yooj yim rau kev ua haujlwm. Qhov tsis zoo, txawm li cas los xij, yog tias nws huab cua sai sai - tshwj xeeb tshaj yog thaum nws los rau hauv kev sib cuag nrog dej. Txawm li cas los xij, qhov degree ntawm hardness nce nrog cov ntsiab lus quartz. Qhov siab dua qhov no, qhov nyuaj thiab tiv taus ntau dua ntawm sandstone. Tsis tas li ntawd, cov xuab zeb zoo li tsis muaj xim vim dej noo (xws li nag).
Dab tsi ntawm sandstone yog qhov zoo tshaj plaws rau lub tsev tsa txaj?
Sandstone muaj nyob rau hauv ntau yam xim - tab sis tsis yog vim lub ntuj pob zeb tau ua xim xim. Hloov chaw, cov xim sib txawv muab cov ntaub ntawv hais txog cov pob zeb muaj pes tsawg leeg thiab yog li nws tsim nyog rau lub tsev tsa txaj. Hard thiab resistant sandstone muaj cov ntsiab lus quartz siab thiab yog li ntawd muaj xim dawb-grey. Yog li hu ua hlau sandstone yog reddish nyob rau hauv cov xim vim cov hlau oxides nws muaj, thaum hom cemented los ntawm feldspars thiab av nplaum minerals coj mus rau yellowish xim. Los ntawm txoj kev, tom kawg yog cov mos mos sandstone duab.
Tip
Sandstone phab ntsa yog nrov heev tsis yog vim lawv yooj yim mus ua hauj lwm nrog, tab sis vim hais tias cov ntaub ntawv kuj zoo tagnrho raws li ib tug vaj biotope rau kab, kab laug sab thiab beetles nrog rau slowworms thiab lizards.
