Lub tswvyim ntawm mantle convection tau txais xyoo twg?

Video: Lub tswvyim ntawm mantle convection tau txais xyoo twg?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

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Tsis tas li ntawd nug, lub mantle Convect sai npaum li cas?

Kev nrawm tuaj yeem ua tau sai dua rau me me convection tshwm sim nyob rau hauv qis-viscosity cheeb tsam hauv qab lithosphere, thiab qeeb qeeb hauv qis tshaj. mantle qhov twg viscosities loj dua. Ib qho ntiav convection lub voj voog yuav siv sij hawm ntawm qhov kev txiav txim ntawm 50 lab xyoo, txawm tias tob dua convection tuaj yeem nyob ze rau 200 lab xyoo.

Qhov thib ob, leej twg pom mantle convection? Arthur Holmes

Ib tug kuj yuav nug, puas yog lub mantle undergo convection?

Yog lawm. Kev piav qhia: Geologists paub meej tias qhov mantle ntawm lub ntiaj teb convects ob peb centimeters txhua xyoo. Lub cev convection yog cov txheej txheem uas lub ntiaj teb cov khoom silicate mantle undergoes qeeb, creeping txav uas nqa cua sov los ntawm lub ntiaj teb sab hauv mus rau nws nto.

Nyob rau hauv lub txheej twg mantle convection tshwm sim?

Convection tam sim no hauv magma tsav phaj tectonics . Thaum tshav kub kub generated los ntawm cov xov tooj cua decay ntawm cov ntsiab sib sib zog nqus nyob rau hauv lub sab hauv ntawm lub Lub ntiaj teb tsim magma (molten pob zeb) nyob rau hauv lub aesthenosphere. Lub aesthenosphere (70 ~ 250 km) yog ib feem ntawm lub mantle, qhov nruab nrab ntawm lub Lub ntiaj teb uas txuas mus rau 2900 km.

Pom zoo:

Lub tswvyim thiab lub tswvyim yog dab tsi?

Raws li kev txheeb cais, lub ntsiab lus piav qhia txog kev sib raug zoo ntawm cov kev hloov pauv tshwj xeeb uas tau txheeb xyuas hauv txoj kev tshawb fawb. Nws tseem qhia txog cov tswv yim, txheej txheem thiab cov khoom tsim tawm ntawm tag nrho cov kev tshawb nrhiav. Lub tswvyim ntawm lub tswvyim tseem hu ua kev tshawb fawb paradigm

Koj puas tau txais 7 xyoo rau nws lub hnub yug 2019?

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Henri Becquerel nrhiav tau dab tsi uas ua rau nws tau txais 1903 Nobel nqi zog Nws nrhiav tau dab tsi txog lub caij uranium?

Teb: Henri Becquerel tau txais ib nrab ntawm qhov khoom plig rau nws qhov kev tshawb pom ntawm cov hluav taws xob tsis zoo. Teb: Marie Curie tau kawm txog cov hluav taws xob ntawm tag nrho cov tebchaw uas muaj cov xov tooj cua paub, suav nrog uranium thiab thorium, uas nws tom qab pom kuj tseem muaj xov tooj cua

Yuav ua li cas kuv yuav tau txais ib tug me nyuam 8 xyoo rau nws lub hnub yug?

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