Video: Cov pob zeb twg ua rau qhov tsawg tshaj plaws ntawm lub ntiaj teb crust?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub Sedimentary pob zeb pab pawg ua kom tsawg ntawm Lub ntiaj teb crust nrog ib feem ntawm 8.
Cia li xav txog qhov no, pawg pob zeb twg ua rau feem ntau ntawm lub ntiaj teb crust?
Feem ntau ntawm Lub ntiaj teb crust -95 feem pua ntawm nws-muaj igneous pob zeb thiab metamorphic pob zeb . Sedimentary pob zeb , uas ua rau nyias npog rau Lub ntiaj teb nto, ua tsuas yog 5 feem pua ntawm cov pob zeb.
Ib sab saum toj, dab tsi hauv qab lub ntiaj teb crust? Cov Lub ntiaj teb crust yog cov Lub ntiaj teb 's nyuaj txheej txheej. Hauv qab no tus pob zeb yog mantle. Cov pob zeb thiab lub tsho sab sauv ua rau lithosphere. Lub lithosphere tawg mus rau hauv daim hlau tectonic uas txav tau.
Yog li ntawd, dab tsi ntawm pob zeb ua rau qhov loj tshaj ntawm cov pob zeb metamorphic?
Protolith tej zaum yuav yog a sedimentary , igneous , los yog metamorphic pob zeb uas twb muaj lawm. Cov pob zeb metamorphic ua ib feem loj ntawm lub ntiaj teb crust thiab tsim 12% ntawm lub ntiaj teb av. Lawv raug cais los ntawm kev ntxhib los mos thiab los ntawm tshuaj lom neeg thiab ntxhia sib dhos (metamorphic facies).
Cov pob zeb ua li cas hauv pawg pob zeb ntawd?
Peb Pob zeb Hom Igneous pob zeb form los ntawm qhov txias thiab hardening ntawm molten magma nyob rau hauv ntau qhov chaw sib txawv. Ntau tshaj 700 ntau hom igneous pob zeb yog paub. Sedimentary pob zeb form los ntawm compaction thiab cementing ua ke ntawm sediments, tawg pieces ntawm pob zeb -zoo li pob zeb, xuab zeb, silt, los yog av nplaum.
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