Kodi ndi zinthu ziti zomwe zimapangitsa kuphulika kwamphamvu kwa chiphalaphala?
Kodi ndi zinthu ziti zomwe zimapangitsa kuphulika kwamphamvu kwa chiphalaphala?
Anonim

Magma wokhuthala kwambiri okhala ndi mpweya wokwera kwambiri kuyambitsa kuphulika kwamphamvu kwamapiri. Thick magma (viscous magma) samayenda mosavuta. Chani amapanga magmaviscous ndi silika wambiri. Rhyolitic (silica-rich and high gascontent) magma ali ndi mamasukidwe apamwamba komanso mpweya wambiri wosungunuka.

Mogwirizana ndi zimenezi, n'chiyani chimayambitsa kuphulika kwamphamvu kwa chiphalaphala chamoto?

Chophulika kuphulika nthawi zonse imayamba ndi kutsekeka kwamtundu wina mu crater ya a phiri lophulika zomwe zimalepheretsa kutulutsidwa kwa mpweya womwe umatsekeredwa mu magma a viscous andestic orrhyolitic magma. Kukhuthala kwakukulu kwa mitundu iyi ya magma kumalepheretsa kutulutsa mpweya wotsekeka.

Komanso, zifukwa zazikulu zitatu za kuphulika kwa mapiri ndi chiyani? Ngakhale pali zifukwa zingapo zomwe zimayambitsa akuphulika kwa mapiri, atatu kutsogola: kuchuluka kwa magma, kupanikizika kochokera ku mpweya wosungunuka mu magma ndi kubayidwa kwa gulu latsopano la magma muchipinda chodzaza kale.

Mwa njira imeneyi, kodi ndi mikhalidwe yotani imene imafunika kuti mapiri aphulika?

Mapiri aphulika chifukwa cha kachulukidwe ndi kupanikizika.Kutsika kochepa kwa magma kumagwirizana ndi miyala yozungulira kumapangitsa kuti iwuke (monga mpweya wotsekemera mu madzi). Idzakwera pamwamba kapena kuya komwe kumatsimikiziridwa ndi kachulukidwe ka themagma ndi kulemera kwa miyala pamwamba pake.

Ndi phiri lamtundu wanji lomwe limaphulika mwamphamvu?

A Vulcanian kuphulika ndi wamfupi, zachiwawa, kuphulika kwakung'ono kwa viscous magma (nthawi zambiri andesite, dacite, kapena rhyolite). Izi mtundu za kuphulika zotsatira za kugawanika ndi kuphulika kwa pulagi ya lava mu achiphala chamoto ngalande, kapena kuphulika kwa chiphalaphala chamadzi (chiphalaphala chowoneka bwino chomwe chimawunjikana pamwamba pa mpweya).

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