Video: Dab tsi yog cov yam ntxwv ntawm cov volcanoes sib xyaw?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Composite volcanoes muaj alternating txheej ntawm tshauv thiab lava ntws. Kuj tseem hu ua strato roob hluav taws , lawv cov duab yog symmetric cone nrog ntxhab sab uas nce siab li 8,000 ko taw. Lawv tsim raws lub ntiaj teb subduction zones qhov twg ib lub phaj tectonic thawb rau hauv qab.
Kuj paub, dab tsi ua rau lub roob hluav taws sib xyaw?
Lub stratovolcano, tseem hu ua a volcano composite , yog conical roob hluav taws tsim los ntawm ntau txheej (strata) ntawm hardened lava, tephra, pumice thiab tshauv. Lub lava ntws los ntawm stratovolcanoes feem ntau txias thiab tawv ua ntej sib kis mus deb, vim muaj viscosity siab.
Lub roob hluav taws sib xyaw zoo li cas? Tsis zoo li daim ntaub thaiv roob hluav taws uas yog tiaj thiab dav, volcanoes sib xyaw yog siab, symmetrically zoo li tus, nrog ntxhab sab, qee zaum nce 10,000 feet siab. Lawv tsim los ntawm cov txheej txheej ntawm cov lava ntws, roob hluav taws tshauv, cinders, blocks, thiab foob pob.
Raws li txoj cai, dab tsi yog cov yam ntxwv ntawm stratovolcano?
A stratovolcano Nws yog ib tug siab, conical volcano muaj li ntawm ib txheej ntawm hardened lava, tephra, thiab volcanic tshauv. Cov volcanoes no yog tus cwj pwm los ntawm qhov tob tob thiab ntu ntu, tawg tawg. Lub lava uas ntws los ntawm lawv yog cov khov heev, thiab txias thiab tawv ua ntej yuav kis mus deb heev.
Nyob qhov twg yog cov volcanoes sib xyaw?
Composite volcanoes feem ntau pom nyob rau ntawm qhov chaw puas tsuaj. Piv txwv ntawm cov volcanoes sib xyaw suav nrog Mount Fuji ( Nyiv ), Mount St Helens (USA) thiab Mount Pinatubo (Philippines).
Pom zoo:
Puas yog Oxygen yog cov khoom sib xyaw lossis sib xyaw?
Puas yog oxygen yog ib qho khoom sib xyaw lossis sib xyaw? Oxygen yog ib yam khoom. Nws yog tsim los ntawm tib hom atom, oxygen atoms (8 protons). Nws tshwm sim kom ruaj khov tshaj li molecules ntawm muaj pes tsawg leeg
Puas yog txoj cai ntawm kev sib xyaw ua ke siv tau rau cov khoom sib xyaw?
Cov teeb meem tsis tuaj yeem tsim los yog rhuav tshem, txawm hais tias itis ib qho khoom, qhov sib xyaw, lossis sib xyaw. b) Txoj cai lij choj ntawm qhov tseeb muaj pes tsawg leeg tsuas yog siv rau cov khoom sib txuas nkaus xwb, vim hais tias nws hais txog qhov tsis tu ncua, lossis qhov tseeb, muaj pes tsawg leeg ntawm cov ntsiab lus hauv ib qho chaw
Dab tsi yog qhov sib xyaw ntawm cov khoom sib xyaw?
Ib lub tebchaw muaj cov atom ntawm cov khoom sib txawv ntawm cov tshuaj sib xyaw ua ke hauv qhov sib piv ruaj khov. Kev sib tov yog ib qho kev sib xyaw ntawm ob lossis ntau yam tshuaj uas tsis muaj tshuaj lom neeg ua ke lossis cov tshuaj tiv thaiv. Kev sib xyaw. Cov tshuaj muaj cov ntsiab lus sib txawv hauv qhov sib piv ruaj khov uas tau hais tseg los ntawm cov ntawv cog lus tshuaj
Dab tsi ntawm lub cev nta yog cov yam ntxwv ntawm cov ntug dej hiav txwv ntawm Texas?
Texas 'Gulf Coastal Plains yog sab hnub poob txuas ntxiv ntawm ntug hiav txwv tiaj tiaj txuas los ntawm Dej Hiav Txwv Atlantic mus dhau Rio Grande. Nws cov yam ntxwv dov mus rau toj roob hauv pes npog nrog kev loj hlob hnyav ntawm ntoo thuv thiab tawv ntoo txuas mus rau East Texas
Dab tsi yog txoj cai ntawm kev sib xyaw rau cov khoom sib xyaw?
Rule of Mixtures yog ib txoj hauv kev rau kev kwv yees kwv yees ntawm cov khoom siv sib xyaw, raws li kev xav tias cov khoom sib xyaw yog qhov ntim hnyav nruab nrab ntawm cov theem (matrix thiab dispersed theem) cov khoom