Video: Lub npe ntawm lub raj los ntawm cov pob zeb molten ntws yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A lava cev daim ntawv thaum lub nto ntawm lub lava txias thiab hardens, thaum lub molten sab hauv ntws los ntawm thiab ntws tawm. 21. Tshauv yog qhov thib ob tsawg tshaj plaws pyroclast.
Ntawm no, lub npe ntawm qhov qhib los ntawm cov pob zeb molten ntws mus rau saum npoo yog dab tsi?
Qhov no yog volcano-an qhib nyob rau hauv lub ntiaj teb crust dhau uas magma lossis gases tuaj yeem tawg mus rau hauv nto . Thaum twg pob zeb molten khiav tawm hauv qab lub ntiaj teb nto , nws hloov ntawm magma mus rau lava, pob zeb molten saum lub ntiaj teb nto.
Dab tsi ntawm lub roob hluav taws yog pub los ntawm cov pob zeb hauv av molten? Thaum cov neeg feem coob xav txog qhov tsis zoo pob zeb lawv envision a roob hluav taws erupting pumice thiab lava . Lo lus igneous tuaj rau peb los ntawm lo lus Latin "Ignis" uas txhais tau tias hluav taws. Igneous pob zeb yog ua li no tab sis feem ntau igneous pob zeb yog tsim los sib sib zog nqus hauv av los ntawm kev txias thiab hardening ntawm magma.
Kuj tseem paub yog, lub npe ntawm pob zeb molten nyob rau hauv lub ntiaj teb crust yog dab tsi?
Magma
Peb hom magma yog dab tsi?
Muaj peb hom magma : basaltic, andesitic, thiab mob rhyolitic , txhua tus uas muaj cov ntxhia sib txawv. Tag nrho hom magma muaj ib feem tseem ceeb ntawm silicon dioxide. Basaltic magma muaj hlau, magnesium, thiab calcium, tiam sis tsis muaj poov tshuaj thiab sodium.
Pom zoo:
Dab tsi yog qhov txawv ntawm cov pob zeb tsis foliated thiab foliated metamorphic pob zeb?
Foliated metamorphic pob zeb xws li gneiss, phyllite, schist, thiab slate muaj ib txheej txheej los yog banded zoo li uas yog tsim los ntawm raug tshav kub thiab qhia siab. Non-foliated metamorphic pob zeb xws li hornfels, marble, quartzite, thiab novaculite tsis muaj txheej txheej lossis banded zoo li
Dab tsi yog txhais los ntawm laminar ntws ntawm cov kua hauv lub raj?
Laminar flow, hom kua (gas los yog kua) ntws nyob rau hauv uas cov kua mus smoothly los yog nyob rau hauv txoj kev tsis tu ncua, nyob rau hauv sib piv rau turbulent flow, nyob rau hauv uas cov kua undergoes irregular fluctuations thiab sib tov. Cov kua dej nyob rau hauv kev sib cuag nrog kab rov tav nto yog nyob ruaj ruaj, tab sis tag nrho lwm cov khaubncaws sab nraud povtseg swb ib leeg
Lub npe rau lub pob zeb nruab nrab ntawm cov pob zeb uas txias heev yog dab tsi?
Extrusive igneous pob zeb
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Dab tsi yog cov pob zeb niam txiv ntawm cov pob zeb metamorphic?
Metamorphic pob zeb Metamorphic pob zeb Texture Niam txiv pob zeb Phyllite Foliated Shale Schist Foliated Shale, granite thiab volcanic pob zeb Gneiss Foliated Shale, granite thiab volcanic pob zeb Marble Nonfoliated Limestone, dolostone