Ngaphansi kwezimo ezivamile, ukuminyana kwe-granite akuguquki kakhulu ngokuhamba kwesikhathi, kodwa ngaphansi kwezimo ezithile ezithile, kungase kushintshe. Okulandelayo ukuhlaziya okuvela ezicini ezahlukene:
Ngaphansi kwezimo ezijwayelekile, ukuminyana kuzinzile
I-Granite idwala elivuthayo elakhiwe ngamaminerali afana ne-feldspar, i-quartz ne-mica, futhi inqubo yokwakheka kwayo yinde futhi iyinkimbinkimbi. Ngemuva kokwakhiwa kwayo, ukwakheka kwayo kwamaminerali angaphakathi kanye nokwakheka kwamakhemikhali kuzinzile. I-Granite inesakhiwo esiminyene esinezinhlayiya ezifanayo kanye nezinhle. I-porosity yayo imvamisa iba ngu-0.3% - 0.7%, kanti izinga lokumunca amanzi ngokuvamile liphakathi kuka-0.15% no-0.46%. Uma nje ingekho ngaphansi kwemiphumela enamandla ngokomzimba namakhemikhali avela ngaphandle, ukuhlelwa kwamaminerali ngaphakathi ngeke kushintshe kalula, futhi ubukhulu beyunithi ngayinye buzohlala buhlala bufana, nokuminyana kuzinza ngokwemvelo. Ngokwesibonelo, izingxenye zegwadle ezazisetshenziswa kwezinye izakhiwo zakudala ziye zahlala amakhulu noma izinkulungwane zeminyaka. Esimweni esilondolozwe kahle, ukuminyana kwabo akuzange kube nezinguquko ezibonakalayo.
Izimo ezikhethekile zingaholela ekushintsheni kokuminyana
Umthelela ophathekayo: Uma igwadule lingaphansi kwamandla abalulekile angaphandle njengokucindezelwa nokuba nomthelela isikhathi eside, ingabangela izinguquko ezincane esakhiweni sayo sangaphakathi. Ngokwesibonelo, ezindaweni ezivame ukuzamazama komhlaba, igwadule lingaphansi kokucindezeleka okubangelwa ukunyakaza kwe-crustal. Izikhala phakathi kwezinhlayiya zamaminerali zangaphakathi zingacindezelwa futhi zincishiswe, futhi izimbotshana ezikhona ekuqaleni zingavaleka kancane, okubangele ukwanda kwesisindo seyunithi ngeyunithi ngayinye kanye nokwenyuka kokuminyana. Kodwa-ke, izinguquko ezinjalo ngokuvamile zincane kakhulu futhi zidinga amandla angaphandle anamandla kakhulu futhi aqhubekayo ukuze kwenzeke.
Ukusabela kwamakhemikhali: Uma igwagwagwa lichayeka endaweni ekhethekile yamakhemikhali isikhathi eside, ukuminyana kwayo kungase kushintshe. Isibonelo, uma i-granite ichayeka ezintweni ezine-asidi noma ezine-alkali isikhathi eside, ezinye zezingxenye zayo zamaminerali zingase zibhekane nokusabela kwamakhemikhali ngalawa makhemikhali. Amaminerali afana ne-feldspar ne-mica angase agqwale futhi ancibilike ezindaweni ezine-asidi, okuholela ekulahlekelweni kwezinye izinto. Lokhu kubangela izikhala eziningi ngaphakathi kwegwadle, ukuncipha kwesisindo sisonke, kanjalo nokuncipha kokuminyana. Ngaphezu kwalokho, lapho i-granite ivezwa endaweni enomswakama enenani elikhulu le-carbon dioxide isikhathi eside, ingase ibhekane nokusabela kwe-carbonation, okuzophinde kuthinte ukwakheka kwayo kwangaphakathi nokwakheka, futhi ngaleyo ndlela kuthonye ukuminyana kwayo.
Isimo Sezulu: Ngaphansi kwemiphumela yesikhathi eside yemvelo yesimo sezulu efana nomoya, ukuchayeka elangeni nemvula, ingaphezulu legwadle lizoxebuka kancane kancane bese libola. Nakuba isimo sezulu sithinta ikakhulukazi ungqimba olungaphezulu lwegwadle, njengoba isikhathi sihamba futhi isimo sezulu siya sijula, yonke impahla yegwadle izolahleka. Ngaphansi kwesimo sokuthi ivolumu ihlala ingashintshiwe noma ishintsha kancane kakhulu, isisindo sizokwehla futhi ukuminyana kuzokwehla. Kodwa-ke, isimo sezulu siyinqubo ehamba kancane futhi kungathatha amakhulu noma izinkulungwane zeminyaka ukuthi ukuminyana kushintshe kakhulu.
Sekukonke, ngaphansi kwezimo ezijwayelekile zemvelo nokusetshenziswa, ukuminyana kwegwadle kungathathwa njengokuzinzile futhi okungaguquki. Kodwa-ke, ngaphansi kwethonya lezindawo ezikhethekile zomzimba, zamakhemikhali nezemvelo, ukuminyana kwayo kungase kushintshe ngokwezinga elithile ngokuhamba kwesikhathi.
Isikhathi sokuthumela: May-19-2025