Pyroclastic flow is a fast-moving current of hot gas and volcanic matter that flows along the ground away from a volcano at average speeds of 100 km/h tab sis muaj peev xwm ncav cuag speeds txog 700 km/h.
Yuav ua li cas hauv pyroclastic ntws?
Pyroclastic flow is a dense, fast-moving flow of solidified lava pieces, volcanic ashes, and hot gases. … Raws li hauv av, lava thiab tej pob zeb ntws nqis los. saum toj no, huab cua tuab ntawm cov tshauv dhau ntawm qhov nrawm nrawm.
YPyroclastic Flow GCSE yog dab tsi?
Pyroclastic flow is kev sib xyaw ntawm cov dej kub, tshauv, pob zeb thiab hmoov av. Pyroclastic ntws tuaj yeem yob rau ntawm ob sab ntawm lub roob hluav taws ntawm qhov kub ceev heev thiab nrog qhov kub thiab txias tshaj 400 ° C.
Vim li cas pyroclastic ntws tuag?
Pyroclastic ntws yog kub (feem ntau >800 ° C, lossis >1, 500 ° F), chaotic sib xyaw ntawm cov pob zeb tawg, roj, thiab tshauv uas mus nrawm heev (tsawg meters ib ob) deb ntawm lub qhov hluav taws kub. los yog collapsing ntws pem hauv ntej. Pyroclastic ntws tuaj yeem ua rau ua kom puas tsuaj thiab tuag taus vim lawv qhov kub thiab txias.
Vim li cas thiaj hu ua pyroclastic flow?
Keeb kwm ntawm lub sij hawm
Lo lus pyroclast yog muab los ntawm Greek πῦρ, lub ntsiab lus "hluav taws", thiab κλαστός, lub ntsiab lus "tawg hauv daim". … Pyroclastic ntws uas muaj cov roj ntau dua rau pob zebyog lub npe hu ua "cov dej ntws ntawm pyroclastic density tam sim no" lossis pyroclastic surges.
