Video: Vim li cas silica nplua nuj magma tawg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Silica - Rich Magma Cov cuab yeej tawg Roj Magma nrog siab silica cov ntsiab lus kuj nyiam ua rau tawg tawg. H. Silica - nplua nuj magma muaj ib tug nruj sib xws, yog li nws ntws maj mam thiab nyhav rau harden nyob rau hauv lub volcano vents. Yog tias txaus siab tsim, ib tawg eruption tshwm sim.
Ntawm no, dab tsi yog silica nplua nuj magma?
Lub cev thiab tshuaj muaj zog ntawm magma . Feem ntau magmatic kua yog nplua nuj hauv silica . Feem ntau hais lus, ntau mafic magmas , xws li cov uas tsim basalt, yog kub thiab tsawg viscous ntau dua silica - nplua nuj magmas , xws li cov uas tsim rhyolite. Tsawg viscosity ua rau softer, tsawg tawg tawg.
Yuav ua li cas cov ntsiab lus silica cuam tshuam qhov nyiam ntawm yaj kom tawg? Ib tug magma nrog siab silica (> 60%) yuav nkig heev thiab yog li qhov tawg yuav ua phem heev. Ib tug magma uas muaj ntau cov roj yaj yuav tsim tau ntau cov npuas loj. Nws yog bursting ntawm cov npuas uas ua rau eruption yuav tawg , yog li qhov ntau volatiles nyob rau hauv lub magma, qhov hnyav dua qhov tawg.
Qhov twg magma muaj pes tsawg leeg yog feem ntau tawg?
Kev tawg tawg yog nyiam los ntawm cov ntsiab lus roj thiab siab viscosity ( andesitic rau rhyolitic magmas).
viscosity ntawm Magmas.
| Cov lus piav qhia | Magma Hom | Andesitic |
|---|---|---|
| Solidified Pob Zeb | Andesite | |
| Tshuaj muaj pes tsawg leeg | 55-65 TSI2 %, intermediate in Fe, Mg, Ca, Na, K | |
| Kub | 800 - 1000 oC | |
| viscosity | Nruab nrab |
Vim li cas felsic lava tawg ntau dua?
Ib tug loj tawg volcanic eruption yog 10,000 zaug li haib. Felsic magmas explosively vim kub, roj nplua nuj magma churning nyob rau hauv nws chamber. Lub siab dhau los ua zoo heev uas lub magma Nws thiaj li tawg lub foob thiab tawg, ib yam li thaum lub cork tawm los ntawm ib lub raj mis ntawm champagne.
Pom zoo:
Puas yog Dolomite muaj kev tawg lossis tawg?
Dolomite tsis tshua pom muaj nyob rau hauv ib puag ncig niaj hnub sedimentary, tab sis dolostones muaj ntau heev hauv cov ntaub ntawv pob zeb. Lub cev muaj zog ntawm Dolomite Chemical Classification Carbonate Diaphaneity Transparent to translucent Cleavage Perfect, rhombohedral, peb cov lus qhia Mohs Hardness 3.5 txog 4
Vim li cas siab silica magma nyiam?
Viscosity yog qhov tsis kam ntws (tawm tsam ntawm fluidity). Siab dua SiO2 (silica) cov ntsiab lus magmas muaj viscosity ntau dua li SiO2 cov ntsiab lus magmas (viscosity nce nrog nce SiO2 concentration hauv magma)
Dab tsi yog silica nplua nuj magma?
Lub cev thiab tshuaj muaj zog ntawm magma. Feem ntau magmatic kua yog nplua nuj nyob rau hauv silica. Feem ntau hais lus, ntau mafic magmas, xws li cov uas tsim basalt, yog kub thiab tsawg viscous dua silica-nplua nuj magmas, xws li cov uas tsim rhyolite. Tsawg viscosity ua rau softer, tsawg tawg tawg
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Yuav ua li cas koj thiaj paub tias muaj nuj nqi yog lub zog muaj nuj nqi?
VIDEO Ib yam li ntawd, tib neeg nug, dab tsi ua rau lub zog ua haujlwm? A lub zog ua haujlwm yog a muaj nuj nqi qhov twg y = x ^n qhov twg n yog tus lej tiag tiag. Ntau tus niam txiv muaj nuj nqi xws li linear muaj nuj nqi thiab quadratic muaj nuj nqi yog qhov tseeb lub zog ua haujlwm .