Ntawm cov pob zeb hauv cov ntxhia uas ua rau granite, ntau dua 90% yog feldspar thiab quartz, ntawm uas feldspar yog qhov tshaj plaws. Lub feldspar yog feem ntau dawb, grey, thiab nqaij-liab, thiab quartz feem ntau yog tsis muaj kob lossis xim av dawb, uas yog qhov yooj yim ntawm granite. Feldspar thiab quartz yog cov zaub mov nyuaj, thiab nws tsis yooj yim txav nrog rab riam hlau. Raws li rau cov pob tsaus nti hauv granite, feem ntau yog dub mica, muaj qee lwm cov zaub mov. Txawm hais tias biotite yog qhov muag muag, nws muaj peev xwm tiv taus 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 hauv cov granite tshwj xeeb yog muaj zog.
Lwm qhov laj thawj yog vim li cas granite yog muaj zog yog tias nws cov pob zeb hauv av tau nruj nreem rau ib leeg. Cov pores feem ntau tus account rau tsawg dua 1% ntawm tag nrho cov ntim ntawm pob zeb. Qhov no muab cov granite muaj peev xwm tiv thaiv muaj zog nias thiab tsis yooj yim nkag los ntawm ya raws.
Lub Sijhawm Post: Lub Tsib Hlis-08-2021