Bas alt thiab granite yeej muaj me ntsis sib xws. Ob leeg yog igneous pob zeb, uas txhais tau hais tias lawv txias los ntawm magma (lub ntiaj teb tau kub heev nyob rau hauv qab ntawm qhov chaw, thiab muaj ntau cov kua pob zeb muaj). Ob leeg yog tsim los ntawm cov zaub mov los ntawm cov pab pawg silicate, yog li ob leeg muaj ntau ntawm silicon thiab oxygen.
Puas yog bas alt yog pob zeb tsis pom kev?
bas alt, extrusive igneous (volcanic) pob zebuas yog cov ntsiab lus silica tsawg, tsaus xim, thiab sib piv nplua nuj nyob rau hauv hlau thiab magnesium. Qee cov bas alts yog cov iav heev (tachylytes), thiab ntau yam zoo-grained thiab compact.
Puas yog granite yog pob zeb igneous?
Granite yog pob zeb igneous pobmuaj feem ntau ntawm ob yam minerals: quartz thiab feldspar. Nws yog ib lub pob zeb intrusive, txhais tau hais tias nws crystallized los ntawm magma uas txias deb ntawm lub ntiaj teb saum npoo. … Nws yog lub pob zeb uas tsis muaj zog tshaj plaws.
pob zeb dab tsi yog granite thiab bas alt?
Bas alt thiab granite yog ob qho tib si silicate pob zeb uas muaj cov zaub mov xws li feldspar thiab pyroxene. Lawv kuj yog ob qho tib si ntau pob zeb hauv ntiaj teb. Tsis tas li ntawd, lawv yog ob qho tib si igneous, txhais tau hais tias lawv tsim los ntawm direct crystallization ntawm molten pob zeb.
Vim li cas bas alt yog pob zeb tsis pom kev?
Bas alt (UK: /ˈbæs.ɔːlt, -əlt/; US: /bəˈsɔːlt, ˈbeɪˌsɔːlt/) yog ib qho aphanitic extrusive igneous pob zeb tsim los ntawm cov cua txias sai ntawm cov nplua nuj magnesium lava thiab hlau (mafic lava) nthuav tawm ntawm lossis ze ze ntawm lub ntiaj teb pob zeb lossis lub hli… Ntau tshaj 90% ntawm tag nrho cov pob zeb hluav taws xob hauv ntiaj teb yog bas alt.
