Qhov txawv ntawm Bas alt thiab Granite

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Qhov txawv ntawm Bas alt thiab Granite
Qhov txawv ntawm Bas alt thiab Granite

Video: Qhov txawv ntawm Bas alt thiab Granite

Video: Qhov txawv ntawm Bas alt thiab Granite
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Qhov sib txawv tseem ceeb ntawm bas alt thiab granite yog tias bas alt feem ntau tshwm sim ntawm cov dej hiav txwv, thaum granite nyob hauv lub ntiaj teb nyob rau hauv txhua lub teb chaws.

Lub ntiaj teb muaj peb hom pob zeb uas yog pob zeb tsis pom kev, pob zeb sedimentary, thiab cov pob zeb metamorphic. Bas alt thiab granite yog ob hom igneous pob zeb. Tag nrho cov pob zeb ntawm cov igneous keeb kwm muaj magma los yog molten ntiaj teb uas pom nws txoj kev mus rau saum npoo ntawm lub ntiaj teb los ntawm fissures thiab tawg nyob rau hauv qab ntawm lub ntiaj teb. Cov pob zeb molten uas tawm hauv daim ntawv lava, thaum txias yuav ua cov pob zeb tsis zoo. Ob lub pob zeb nto moo tshaj plaws, bas alt thiab granite, muaj qhov sib xws ua rau muaj kev ntxhov siab ntawm tib neeg. Txawm li cas los xij, muaj ntau qhov sib txawv ntawm bas alt thiab granite uas peb tab tom tham hauv kab lus no.

Bas alt yog dab tsi?

Bas alt yog tsaus dua thiab muaj cov nplua nuj nplua nuj xws li magnesium thiab hlau. Peb tuaj yeem hu cov pob zeb bas alt li mafic pob zeb ib yam nkaus, vim yog cov cuab yeej no. Cov neeg uas paub cov cim ntawm magnesium (Mg) thiab hlau (Fe) yuav yooj yim to taub lub logic qab lo lus mafic pob zeb.

Thaum xav txog qhov xwm txheej ntawm cov pob zeb no, bas alt yog qhov tseem ceeb hauv qhov xwm txheej. Bas alt tsim thaum magma txias thiab solidifies ntawm lub ntiaj teb. Nws feem ntau tshwm sim rau hauv pem teb ntawm dej hiav txwv raws li magma solidifies sai sai los ntawm kev sib cuag nrog dej hiav txwv txias.

Qhov sib txawv ntawm Bas alt thiab Granite
Qhov sib txawv ntawm Bas alt thiab Granite

Daim duab 01: Qhov tshwm sim ntawm Bas alt

Bas alt yog pob zeb extrusive igneous; extrusive pob zeb yog cov uas tsim los ntawm lava tawm ntawm volcanoes. Kev txias ntawm cov pob zeb intrusive yuav siv sij hawm ntev dua li cov pob zeb extrusive. Cov pob zeb bas alt sib cais raws cov dav hlau columnar.

Dab tsi yog Granite?

Granite yog sib dua hauv daim tawv nqaij thiab muaj qhov ntxhib-grained zoo nkauj. Cov pob zeb no tshwm sim ntawm qhov tob, thiab peb tuaj yeem pom tsuas yog thaum qhov sib sib zog nqus yaig tshwm sim. Granite muaj qhov sib txawv vim nws feem ntau muaj feldspar thiab quartz, thiab li no, lub npe felsic pob zeb. Thaum xav txog qhov xwm txheej ntawm cov pob zeb no, granite yog acidic hauv qhov xwm txheej. Nws tshwm sim saum dej hiav txwv thiab ua rau muaj ntau ntawm continental crust.

Qhov tseem ceeb sib txawv ntawm Bas alt thiab Granite
Qhov tseem ceeb sib txawv ntawm Bas alt thiab Granite

Daim duab 02: Pom ntawm Granite

Granite yog pob zeb intrusive ingenuous; pob zeb uas tsim los ntawm magma uas tseem tsis tau tawm ntawm lub roob hluav taws yog hu ua pob zeb intrusive. Kev txias ntawm cov pob zeb intrusive yuav siv sij hawm ntev dua li cov pob zeb extrusive raws li lawv nyob hauv qab ntawm lub ntiaj teb. Cov pob zeb no sib cais raws cov dav hlau kab rov tav.

Qhov txawv ntawm Bas alt thiab Granite yog dab tsi?

Ntawm ob, bas alt yog tsaus dua thiab muaj cov nplua nuj zoo xws li magnesium thiab hlau thaum granite yog sib dua thiab muaj feldspar thiab quartz. Ntawm lwm qhov sib txawv, qhov xwm txheej ntawm cov pob zeb no qhia tias bas alt yog qhov tseem ceeb hauv qhov xwm txheej, thaum granite yog acidic hauv xwm. Bas alt tsim thaum magma txias thiab solidifies ntawm lub ntiaj teb. Nws feem ntau tshwm sim nyob rau hauv pem teb ntawm dej hiav txwv raws li magma solidifies sai sai los ntawm kev sib cuag nrog dej hiav txwv txias. Ntawm qhov tod tes, granite tshwm sim saum dej hiav txwv thiab ua rau ntau ntawm continental crust. Bas alt yog ib qho extrusive igneous pob zeb, whereas granite yog ib tug intrusive ingenuous pob zeb. Lwm qhov sib txawv ntawm bas alt thiab granite cuam tshuam rau txoj kev ob hom pob zeb sib cais thaum muab tso rau hauv siab. Thaum cov pob zeb bas alt sib cais raws cov dav hlau columnar, granite pob zeb muab txoj hauv kev nrog cov dav hlau kab rov tav. Pom tseeb, qhov sib txawv no tshwm sim vim qhov sib txawv ntawm txoj kev ob hom pob zeb txias.

Qhov sib txawv ntawm Bas alt thiab Granite hauv Daim Ntawv Tabular
Qhov sib txawv ntawm Bas alt thiab Granite hauv Daim Ntawv Tabular

Summary – Bas alt vs Granite

Bas alt thiab granite yog ob hom pob zeb uas peb tuaj yeem pom hauv ntiaj teb. Qhov sib txawv tseem ceeb ntawm bas alt thiab granite yog tias bas alt feem ntau tshwm sim nyob rau hauv dej hiav txwv pem teb, thaum granite yog nyob rau hauv lub crust ntawm lub ntiaj teb nyob rau hauv tag nrho cov teb chaws.

Pom zoo: