Igneous pob zeb daim ntawv thaum magma (molten pob zeb) txias thiab crystallizes, txawm nyob rau ntawm lub roob hluav taws nyob rau saum npoo ntawm lub ntiaj teb los yog thaum lub pob zeb melted tseem nyob rau hauv lub crust. … Thaum cov lava tawm ntawm lub roob hluav taws thiab khov rau hauv cov pob zeb uas tsis muaj zog, tseem hu ua volcanic, lub pob zeb txias sai heev.
lava tawv hu ua dab tsi?
Thaum lava nce mus txog qhov chaw ntawm lub ntiaj teb dhau los ntawm cov hluav taws kub los yog dhau los ntawm qhov tawg loj heev cov pob zeb uas tsim los ntawm lava txias thiab tawv tawv yog hu ua extrusive igneous pob zeb. Qee yam ntawm ntau hom pob zeb extrusive igneous yog lava pob zeb, cinders, pumice, obsidian, thiab volcanic tshauv thiab hmoov av.
Yuav ua li cas magma hu ua?
Magma uas tau txias rau hauv cov khoom yog hu ua igneous pob. Magma yog kub heev-nruab nrab ntawm 700 ° thiab 1, 300 ° C (1, 292 ° thiab 2, 372 ° Fahrenheit).
Lub lava yog dab tsi?
Lava pob zeb, tseem hu ua igneous pob zeb, yog tsim thaum volcanic lava los yog magma cools thiab solidifies.
Cov khoom tawg ntawm cov lava khov hu ua dab tsi?
Definition: Volcanic foob pob yog cov tawg tawg uas tau tawm mus thaum khov (ib nrab molten), thiab cov blocks yog cov pob zeb tawg; ob qho tib si loj dua 64 hli inch thiab ejected thaum lub sij hawm tawg tawg.
