Kunyura mu rutare - granite

Granite nubwoko bwagutse cyane bwurutare hejuru.Ikora igice kinini cyubutaka bwateye imbere cyane ukurikije imiterere yimiti kandi nikimenyetso cyingenzi gitandukanya Isi nindi mibumbe.Ifite amabanga yo gukura kwumugabane wumugabane, ubwihindurize bwa mantant na crust, hamwe nubutunzi bwamabuye y'agaciro.

Kubijyanye na genesi, granite nigitare cyinjira cyane acide magmatique, ikorwa cyane nkibuye cyangwa urutare.Ntabwo bigoye gutandukanya granite nuburyo isa;ibiranga umwihariko ni ibara ryacyo, cyane cyane ibara ry'umutuku.Amabuye y'agaciro agize granite ni quartz, feldspar na mika, kuburyo akenshi ibara ryinshi hamwe na granite ya granite bizatandukana bitewe na feldspar, mika na minerval yijimye.Muri granite, quartz ihwanye na 25-30% yumubare wose, ifite isura yikirahure gito gifite amavuta meza;potasiyumu feldspar ihwanye na 40-45% ya feldspar na plagioclase 20%.Imwe mu miterere ya mika nuko ishobora kugabanywamo uduce duto duto hamwe nurushinge hamwe na deconstruction.Rimwe na rimwe, granite iherekezwa namabuye y'agaciro nka amphibole, pyroxene, tourmaline na garnet, ariko ibi ntibisanzwe cyangwa ntibimenyekana byoroshye.

Ibyiza bya granite ni indashyikirwa, ni kimwe, birakomeye, bitanyunyuza amazi, imbaraga zo kwikuramo urutare rushobora kugera kuri 117.7 kugeza 196.1MPa, bityo rero bikunze gufatwa nkishingiro ryiza ryinyubako, nk'imigezi itatu, Xinfengjiang, Longyangxia, Tenseitan nizindi ngomero z'amashanyarazi zubatswe kuri granite.Granite kandi ni ibuye ryiza ryubaka, rifite ubukana bwiza, kandi rifite imbaraga zo gukomeretsa cyane, porotike ntoya, kwinjiza amazi make, gutwara ubushyuhe bwihuse, kwihanganira kwambara neza, kuramba cyane, kurwanya ubukonje, kurwanya aside, kurwanya ruswa, ntibyoroshye ikirere , rero ikoreshwa kenshi mukubaka ibiraro byikiraro, intambwe, imihanda, ariko no kumazu yububiko, uruzitiro nibindi.Granite ntabwo ikomeye gusa kandi ifatika, ariko kandi ifite ubuso bunoze bufite inguni nziza, kubwibyo ikoreshwa kenshi mugushushanya imbere kandi ifatwa nkibuye ryo murwego rwohejuru.

Granite ntabwo ari ubwoko bumwe bwurutare, ariko ifite byinshi bihindura, buri kimwe kigaragaza imiterere itandukanye bitewe nibintu bivanze.Iyo granite ivanze na orthoclase, mubisanzwe bigaragara ko yijimye.Ibindi granite ni imvi cyangwa, iyo metamorphose, icyatsi kibisi.