Ntawm cov pob zeb hauv av uas ua granite, ntau tshaj 90% yog feldspar thiab quartz, ntawm cov feldspar yog feem ntau.Lub feldspar feem ntau yog dawb, grey, thiab nqaij-liab, thiab quartz feem ntau tsis muaj xim lossis greyish dawb, uas yog xim xim ntawm granite.Feldspar thiab quartz yog cov ntxhia nyuaj, thiab nws nyuaj rau txav nrog rab riam steel.Raws li rau qhov tsaus me ntsis hauv granite, feem ntau yog dub mica, muaj qee qhov lwm yam minerals.Txawm hais tias biotite kuj yog mos, nws lub peev xwm los tiv thaiv kev ntxhov siab tsis muaj zog, thiab tib lub sijhawm lawv muaj me me hauv granite, feem ntau tsawg dua 10%.Qhov no yog cov khoom siv nyob rau hauv uas granite muaj zog tshwj xeeb.
Lwm qhov laj thawj vim li cas granite muaj zog yog tias nws cov pob zeb hauv av tau nruj nruj rau ib leeg thiab tau muab tso rau hauv ib leeg.Cov pores feem ntau suav txog tsawg dua 1% ntawm tag nrho cov ntim ntawm pob zeb.Qhov no muab cov granite muaj peev xwm tiv taus cov kev ntxhov siab thiab tsis yooj yim nkag los ntawm cov dej noo.
Post lub sij hawm: May-08-2021