10.30. Dab tsi yog qhov tseeb ntawm tag nrho cov plutons? Lawv tsim hauv qab lub ntiaj teb nto.
4 hom plutons yog dab tsi?
Cov pob zeb ntau tshaj plaws hauv plutons yog granite, granite, tonalite, monzonite, thiab quartz diorite. Feem ntau lub teeb xim, ntxhib-grained plutons ntawm cov khoom sib xyaw no hu ua granitoids.
Dab tsi yog plutons?
Ntau plutons tau xav tias yog tshwm sim ntawm kev ua haujlwm tsis pom kev uas muaj magma koom nrog; qhov kev tsis sib haum xeeb ntawm qee lub cev loj loj, txawm li cas los xij, xav kom cov txheej txheem metasomatic lossis granitization suav nrog thaum tham txog ntau plutons.
plutons ua li cas?
Feem ntau ntawm cov magmas yog tsim los ntawm melting nyob ze ntawm lub hauv paus ntawm lub teb chaws. Cov magmas maj mam nce los ntawm cov pob zeb zoo li cov balloons zoo. Lawv solidify nyob ze ntawm qhov chawlos ua lub cev loj ntawm cov pob zeb uas tsis muaj zog hu ua plutons, uas tau nthuav tawm tom qab thaum nce thiab yaig tshem tawm cov pob zeb overlying.
Dab tsi yog qhov muaj pes tsawg leeg ntawm cov plutons igneous?
Nws feem ntau muaj ntau dua ntau dua 20% quartz los ntawm ntim, ntau cov sodium (Na) thiab calcium (Ca) nplua nuj plagioclase, me me ntawm muscovite mica, thiab biotite thiab amphiboles li cov zaub mov tsaus. Lub pob zeb volcanic sib npaug ntawm granite yog dacite.
