Subduction zones tshwm sim tag nrho ncig ntawm ntug dej hiav txwv Pacific, sab ntug dej hiav txwv ntawm Washington, Canada, Alaska, Russia, Nyiv thiab Indonesia. Hu ua "Lub Nplhaib ntawm Hluav Taws," cov cheeb tsam subduction no yog lub luag haujlwm rau lub ntiaj teb av qeeg loj tshaj plaws, cov tsunami uas txaus ntshai tshaj plaws thiab qee qhov phem tshaj plaws volcanic eruptions.
Tus ciam teb twg yog qhov subduction tshwm sim?
Subduction tshwm sim thaum ob daim phiaj sib tsoo ntawm ib thaj tsam sib koom ua ke, thiab ib phaj yog tsav hauv qab, rov qab mus rau hauv lub ntiaj teb sab hauv.
Ntawm daim phiaj ciam teb twg yog koj feem ntau yuav pom thaj tsam subduction?
Convergent ciam teb feem ntau yog subduction zones, qhov twg lub phaj hnyav dua nyob rau hauv lub sib dua phaj, tsim ib tug sib sib zog nqus trench. Cov kev sib hloov no hloov cov khoom tuab rau hauv cov khoom siv tsis zoo rau hauv buoyant magma, uas nce los ntawm kev ua kaub puab rau lub ntiaj teb.
Vim li cas thiaj tshwm sim hauv cheeb tsam subduction?
Subduction zones tshwm sim qhov twg daim hlau sib tsoo Thaum ob daim hlau sib ntsib nws zoo li cov khoom txav tsis tau ntsib lub zog tsis muaj zog. Txawm li cas los xij tectonic daim hlau txiav txim siab nws los ntawm huab hwm coj. Lub phaj loj dua, ib txwm ib lub teb chaws yuav yuam kom lwm lub phaj, lub phaj dej hiav txwv hauv qab nws.
kev sib koom ua ke nyob qhov twg?
Convergent Phaj Ciam Kev Loj Hlob
Qhov twg daim phiaj tectonic converge, ib qho nrog nyias oceanic crust subducts hauv qab ib capped los ntawm tuab continental crust Ib cheeb tsam subduction muaj cov khoom siv. scraped tawm hauv dej hiav txwv pem teb ze ntawm ntug dej hiav txwv (accretionary wedge) thiab ib tug saw ntawm volcanoes nyob rau hauv av (volcanic arc).
