Lub mantle yog kwv yees 2,900 mais (1,802 mais) tuab, thiab ua rau 84% ntawm lub ntiaj teb ntim tag nrho.
Dab tsi yog lub thickness ntawm mantle thiab puab core?
Mantle - 2,900 km tuab . Outer Core - 2, 200 km tuab . Inner Core - 1, 230 txog 1, 530 km tuab.
Dab tsi yog qhov tuab tshaj plaws?
Lub mantle lub thickness yog kwv yees 2900 km - yog li yog tias koj xav txog lub ntiaj teb lub hauv paus yog ib qho loj, ces lub hauv paus yog "thickest txheej" (txawm hais tias muaj lub vojvoog loj dua. tej zaum yog ib txoj kev zoo hais tias nws) - tab sis lub tswv yim ntawm ib tug nyias muaj nyias ib sab thiab sab hauv core yog feem ntau txais.
Dab tsi yog qhov tuab thiab qhov ntom ntawm lub mantle?
Nws yog 2900 km tuab, thiab muaj li 80% ntawm lub ntiaj teb ntim. Lub mantle muaj hlau thiab magnesium silicates thiab magnesium oxides, yog li nws zoo ib yam li cov pob zeb ntawm lub ntiaj teb saum npoo ntau dua li cov ntaub ntawv hauv cov tub ntxhais. Lub mantle muaj ib tug ntom ntawm 4.5 g / cm3, thiab kub nyob rau hauv thaj tsam ntawm 1000-1500 o C.
Dab tsi yog qhov tuab ntawm cov tub ntxhais sab nraud?
Cov tub ntxhais sab nraud, txog 2, 200 mais (1, 367 mais) tuab, feem ntau yog ua los ntawm cov kua hlau thiab npib tsib xee. NiFe alloy ntawm cov tub ntxhais sab nraud yog kub heev, ntawm 4, 500 ° thiab 5, 500 ° C (8, 132 ° thiab 9, 932 ° Fahrenheit).
