Extrusive lossis volcanic pob zeb crystallize los ntawm lava ntawm lub ntiaj teb nto. Qhov kev ntxhib los mos ntawm cov pob zeb uas tsis muaj zog (zoo-grained vs coarse-grained) yog nyob ntawm tus nqi ntawm qhov txias ntawm cov yaj: qeeb txias tso cai rau cov muaju loj los ua, txias ceev yields me me crystals. … Lawv txias sai heev los ua cov muaju.
Vim li cas cov pob zeb igneous crystalline nyob rau hauv cov xwm?
Cov magma, uas tau coj mus rau saum npoo los ntawm kev tawg lossis hluav taws kub tawg, ua kom muaj zog ntawm tus nqi nrawm dua. Yog li ntawd, cov pob zeb no yog du, crystalline thiab nplua-grained. Bas alt yog ib hom pob zeb extrusive igneous thiab tsim cov lava ntws, lava nplooj thiab lava toj siab.
Puas yog pob zeb igneous crystalline?
Cov pob zeb tsis pom kev yog tsim los ntawm cov pob zeb molten hu ua magma. Lawv yog feem ntau crystalline (ua los ntawm cov khoom siv sib cuam tshuam) thiab feem ntau nyuaj rau tawg.
Dab tsi ua rau pob zeb crystalline?
Crystalline pob zeb hais txog ob qho tib si igneous thiab metamorphic formations uas muaj nruj nreem interlocked nplej ntawm minerals uas tau tsim los ntawm crystallization los ntawm yaj los yog solid-state tshua ntawm elevated pressures thiab kub.
Vim li cas cov pob zeb tsis muaj zog crystalline piav qhia qhov txawv ntawm cov pob zeb extrusive thiab intrusive?
Qhov sib txawv tshaj plaws ntawm cov pob zeb extrusive thiab cov pob zeb intrusive yog crystal size Vim tias cov pob zeb extrusive txias sai, lawv tsuas muaj sijhawm los tsim cov pob zeb me me xws li bas alt lossis tsis muaj dab tsi.. Ntawm qhov tod tes, cov pob zeb intrusive loj tuaj vim lawv siv sijhawm ntev dua kom txias.
