Video: Cov ntaub ntawv volcanic yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
tephra. Tag nrho cov fragmental roob hluav taws ejecta, uas yog tsim thaum lub sij hawm tawg hluav taws kub , suav nrog tshauv, cinders, lapilli, scoriae, pumice, foob pob, thiab lwm yam. Ib lub sij hawm qub rau cov pob zeb me me, nplua-grained igneous pob zeb xws li lava ntws, uas tau tawg mus rau hauv cov khoom sib xws.
Tom qab ntawd, cov khoom siv ntawm lub roob hluav taws yog dab tsi?
Volcanoes tau tsim txoj kev no feem ntau ntawm ob cov ntaub ntawv : lava and ash. Ob leeg ntawm no roob hluav taws cov khoom tuaj hauv ntau qhov sib txawv thiab txawv roob hluav taws muaj sib txawv proportions ntawm lawv.
Ib sab saum toj no, dab tsi yog hom volcano? Muaj peb yam tseem ceeb ntawm lub roob hluav taws - sib xyaw lossis strato, daim thaiv thiab dome. Composite volcanoes , qee zaum hu ua strato volcanoes , yog ntxhab sided cones tsim los ntawm cov khaubncaws sab nraud povtseg thiab [ lava ] ntws. Cov eruptions los ntawm cov volcanoes tej zaum yuav yog ib tug pyroclastic ntws es tsis yog ib tug ntws lava.
Ntawm no, peb hom khoom dab tsi uas lub roob hluav taws tuaj yeem tawm?
Active volcanoes tawg nrog ib lossis ntau dua ntawm peb yam khoom sib txawv. Qhov paub zoo tshaj plaws yog lava , originating los ntawm magma - melted pob zeb - nyob rau hauv lub ntiaj teb lub mantle. Lwm ob yam khoom yog tephra ( pob zeb fragments) thiab gases.
Puas muaj kub hauv lava?
Kub thiab tooj liab muaj nyob rau hauv sulfide minerals tshaj tawm thoob plaws hauv lub loj ntim ntawm intrusive pob zeb (tseem ceeb hais lus, no ore yog txuam nrog volcanic systems, feem ntau tsis yog lub roob hluav taws lawv tus kheej). Cov deposits feem ntau yog 3-8 km thoob plaws thiab tooj liab yuav tsawg dua 1% ntawm pob zeb.
Pom zoo:
Cov ntaub ntawv dab tsi ua rau cov ntawv sau npe hauv cov tshuaj formula muab?
Cov ntawv lossis cov ntawv uas sawv cev rau lub ntsiab lus hu ua nws lub cim atomic. Cov lej tshwm sim raws li cov ntawv sau npe hauv cov qauv tshuaj qhia txog tus lej ntawm atoms ntawm lub caij tam sim ua ntej subscript. Yog tias tsis muaj subscript tshwm sim, ib qho atom ntawm lub ntsiab yog tam sim no
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Cov yam ntxwv ntawm cov ntaub ntawv twg yog qhov ntsuas ntawm tus nqi uas cov ntaub ntawv muaj nuj nqis heev?
Variation: Ib qho kev ntsuas ntawm tus nqi uas cov ntaub ntawv muaj nuj nqis sib txawv. ? Kev faib tawm: Cov xwm txheej lossis cov duab ntawm kev sib kis ntawm cov ntaub ntawv hla ntau qhov tseem ceeb (xws li tswb-puab). ? Outliers: Cov qauv piv txwv uas nyob deb heev ntawm feem ntau ntawm lwm cov qauv nqi
Thaum muab piv cov qauv sau rau ib tus neeg raug liam cov ntaub ntawv lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub tshaj kaum ob lub hlis?
Thaum piv cov qauv sau rau tus neeg raug liam? cov ntaub ntawv, lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub ntau tshaj rau rau kaum ob lub hlis. Tus lej txaus ntawm tus qauv yog qhov tseem ceeb rau kev txiav txim siab qhov tshwm sim ntawm kev sib piv
Dab tsi yog cov cuab yeej lossis cov ntaub ntawv uas tus Kws Tshawb Fawb xav tau los txheeb xyuas cov ntaub ntawv nug?
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