Video: Volcanic iav yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Volcanic iav , txhua lub pob zeb iav tsim los ntawm lava lossis magma uas muaj tshuaj lom neeg nyob ze ntawm granite (quartz ntxiv rau alkali feldspar). Xws li cov khoom molten yuav ncav cuag qhov kub thiab txias tsis muaj crystallizing, tab sis nws cov viscosity yuav dhau los ua siab heev.
Ua li no, volcanic iav hu ua dab tsi?
Obsidian yog ib txwm tshwm sim iav volcanic tsim raws li ib tug extrusive igneous pob zeb. Obsidian yog tsim thaum felsic lava extruded los ntawm ib roob hluav taws txias sai sai nrog tsawg kawg nkaus crystal kev loj hlob.
Tom qab, lo lus nug yog, dab tsi yog obsidian ua los ntawm? Obsidian , igneous pob zeb tshwm sim raws li ib tug ntuj iav tsim los ntawm ceev ceev txias ntawm viscous lava los ntawm volcanoes. Obsidian yog nplua nuj nyob rau hauv silica (kwv yees li 65 mus rau 80 feem pua), muaj dej tsawg, thiab muaj cov tshuaj muaj pes tsawg leeg zoo ib yam li rhyolite. Obsidian muaj ib tug glazed luster thiab yog me ntsis nyuaj tshaj qhov rais iav.
Hais txog qhov no, volcanic iav siv rau dab tsi?
Tsis ntev los no, iav volcanic ua tau siv li molecular sieve rau adsorb thiab cais luv hydrocarbons xws li propane / propylene los yog kev sib cais ntawm luv olefins (C5-C9). Xav txog cov chaw no, lub iav volcanic yog cov khoom siv uas muaj peev xwm ua tau zoo rau kev xaiv adsorption ntawm biomolecules sib txawv.
Dab tsi yog qhov txawv ntawm Obsidian thiab volcanic iav?
Obsidian yog cim los ntawm nws tsis muaj crystals. Vim tias cov crystals tsis tuaj yeem tsim hauv qhov xwm txheej no, lava txias rau hauv ib qho iav volcanic tsis muaj crystals! Obsidian yog cov ntxhia zoo li, tab sis tsis yog cov pob zeb tiag tiag vim li a iav nws tsis yog crystalline; Nyob rau hauv tas li ntawd, nws muaj pes tsawg leeg yog heev complex kom muaj xws li ib tug mineral.
Pom zoo:
Tus txheej txheem ceev ntawm iav yog dab tsi?
Qhov ntom ntawm iav sib txawv nrog txhua hom thiab thaj tsam ntawm 2000 txog 8000 kg / m3 (rau kev sib piv, los ntawm qhov ntom ntom dua aluminium rau ntau ntom dua hlau) ntawm cov qauv txheej txheem. Flint iav tuaj yeem ua tau ntau dua li cov iav iav vim tias flint iav muaj cov hlau lead, uas yog cov khoom ntom ntom
Vim li cas daim iav convex siv los ua daim iav saib tom qab?
Convex mirrors feem ntau yog siv los ua rear-saib (tis) iav hauv tsheb vim hais tias lawv muab ib qho erect, virtual, tag nrho cov duab ploj zuj zus ntawm cov khoom nyob deb nrog kev pom dav dua. Yog li, daim iav convex ua rau tus neeg tsav tsheb pom thaj tsam loj dua li qhov yuav ua tau nrog daim iav dav hlau
Volcanic iav hu ua dab tsi?
Obsidian yog ib qho tshwm sim volcanic iav tsim los ua ib lub pob zeb extrusive igneous. Obsidian yog tsim thaum felsic lava extruded los ntawm lub roob hluav taws txias sai sai nrog kev loj hlob siv lead ua tsawg
Puas yog Volcanic iav?
Volcanic iav yog amorphous (uncrystallized) khoom ntawm magma txias sai. Feem ntau, nws yog hais txog obsidian, iav rhyolitic nrog siab silica (SiO2) cov ntsiab lus. Lwm hom volcanic iav muaj xws li: Pumice, uas suav hais tias yog iav vim nws tsis muaj cov qauv siv lead ua
Ob hom iav iav yog dab tsi?
Thaum lub reflecting nto yog hloov nkhaus, peb hu nws lub iav nkhaus. Muaj ob hom iav nkhaus; concave thiab convex daim iav. Cov iav nkhaus uas muaj qhov cuam tshuam ntawm qhov chaw nkhaus sab hauv yog hu ua concave mirrors thaum cov uas nws xav txog qhov chaw tawm sab nraud yog hu ua convex mirrors