Qhov sib txawv tseem ceeb ntawm cov pob zeb uas tsis muaj zog thiab cov pob zeb sedimentary yog cov pob zeb uas tsis muaj zog yog tsim los ntawm cov kua nplaum uas hu ua magma, thaum cov pob zeb sedimentary yog tsim los ntawm lithification ntawm cov pob zeb uas twb muaj lawm.
Muaj peb hom pob zeb ntawm lub ntiaj teb ua pob zeb ua pob zeb tsis zoo, pob zeb sedimentary, thiab cov pob zeb metamorphic. Geologist ua qhov kev faib tawm no raws li cov txheej txheem geological uas tsim cov pob zeb no. Igneous pob zeb tsim thaum melted pob zeb txias thiab solidify thaum sedimentary pob zeb tsim thaum sediments tau solidified. Metamorphic pob zeb, ntawm qhov tod tes, yog cov pob zeb uas tau hloov los ntawm cov pob zeb tsis zoo lossis cov pob zeb metamorphic. Zoo li lub voj voog dej, muaj lub voj voog pob zeb (geological voj voog) hauv geology. Lub voj voog pob zeb yog cov txheej txheem uas cov pob zeb tsim, degraded, thiab hloov kho los ntawm cov txheej txheem geological xws li plutonism, volcanism, uplift thiab / lossis los ntawm cov txheej txheem geological sab nraud xws li yaig, huab cua, deposition, thiab lwm yam. Raws li lub voj voog pob zeb, ib hom ntawm pob zeb tuaj yeem hloov mus rau lwm qhov (ob qho ntawm ob hom).
Igneous Rocks yog dab tsi?
Cov pob zeb tsis pom kev yog hom pob zeb qub tshaj plaws hauv ntiaj teb. Tag nrho lwm hom pob zeb yog tsim los ntawm igneous pob zeb. Igneous pob zeb tsim thaum magma (cov ntaub ntawv molten) nce los ntawm lub ntiaj teb sab hauv. Nws muaj peev xwm categorize ntxiv raws li lawv qhov tob ntawm kev tsim. Cov pob zeb uas tsim hauv qab lub ntiaj teb saum npoo yog 'intrusive igneous pob zeb'. Ntxiv mus, pob zeb uas tsim nyob rau hauv lub ntiaj teb nto yog 'extrusive igneous pob zeb' (volcanic pob zeb).
Daim duab 01: Igneous Rock
Cov pob zeb tsis pom kev no muaj 40% txog 80% ntawm silica. Magnesium thiab hlau yog lwm yam tseem ceeb. Granite, pegmatite, gabbro, dolerite, bas alt yog qee qhov piv txwv ntawm cov pob zeb tsis pom kev.
Dab tsi yog Sedimentary Pob Zeb?
Pob zeb tawg ua me me vim cov huab cua huab cua zoo li cua thiab dej. Cov me me no yog 'sediments'. Cov sediments tso rau hauv lub ntiaj teb vim muaj ntau yam mechanisms. Cov sediments tsim raws li cov txheej nyias nyias. Tom qab ntawd cov khaubncaws sab nraud povtseg yuav nyuaj rau lub sijhawm ntev. Cov txheej tawv tawv no ntawm cov pob zeb sedimentary.
Daim duab 02: Sedimentary pob zeb
Qhov kev ntxhib los mos ntawm cov pob zeb sedimentary qhia txog hom sediment deposition thiab huab cua tom ntej. Sedimentary pob zeb yog ib qho yooj yim los txheeb xyuas vim yog cov txheej txheem pom. Feem ntau cov pob zeb sedimentary tsim hauv qab dej (hiav txwv). Cov pob zeb sedimentary feem ntau muaj qhov pores vim lawv tsim los ntawm sediments. Shale, sandstone, limestone, conglomerate, thiab thee yog ib co piv txwv ntawm sedimentary pob zeb. Cov pob zeb no feem ntau yog nplua nuj nyob rau hauv fossils. Fossils yog cov seem ntawm cov tsiaj thiab cov nroj tsuag uas khaws cia hauv pob zeb. Cov pob zeb sedimentary muaj ntau yam xim.
Qhov txawv ntawm Igneous Rocks thiab Sedimentary pob zeb yog dab tsi?
Qhov sib txawv tseem ceeb ntawm cov pob zeb tsis pom kev thiab cov pob zeb sedimentary yog cov pob zeb uas tsis muaj zog yog tsim los ntawm magma, thaum cov pob zeb sedimentary yog tsim los ntawm lithification ntawm cov pob zeb uas twb muaj lawm. Igneous pob zeb yog tsis ntxeem tau dej, thaum cov pob zeb sedimentary yog ntxeem tau dej. Ntawd yog, dej tsis tuaj yeem nkag mus los ntawm cov pob zeb tsis muaj zog tab sis tuaj yeem dhau los ntawm cov pob zeb sedimentary. Qhov no yog lwm qhov sib txawv tseem ceeb ntawm cov pob zeb igneous thiab cov pob zeb sedimentary. Tsis tas li ntawd, cov pob zeb uas tsis muaj zog muaj cov pob txha tsis tshua muaj, thaum cov pob zeb sedimentary muaj cov pob txha nplua nuj.
Ntxiv rau, cov pob zeb tsis pom kev nyuaj dua li cov pob zeb sedimentary. Sedimentary pob zeb 'xav kom hnov mob nrog acids yog siab dua nyob rau hauv kev sib piv rau igneous pob zeb. Tsis tas li ntawd, cov pob zeb tsis pom kev yog lub teeb lossis xim tsaus, thaum cov pob zeb sedimentary muaj xim ntau yam.
Cov infographic hauv qab no nthuav tawm qhov sib txawv ntxiv ntawm cov pob zeb tsis pom kev thiab cov pob zeb sedimentary.
Summary – Igneous Rocks vs Sedimentary Rocks
Pob zeb muaj peb hom xws li pob zeb tsis muaj zog, pob zeb sedimentary, thiab cov pob zeb metamorphic. Qhov sib txawv tseem ceeb ntawm cov pob zeb igneous thiab cov pob zeb sedimentary yog lawv tsim. Kev tsim cov pob zeb tsis zoo yog los ntawm magma, thaum lithification ntawm cov pob zeb uas twb muaj lawm ua cov pob zeb sedimentary.
