I-Antarctica iyizwekazi eliyimfihlakalo elinomhlaba okhethekile wemvelo. Kukhona amadamu akhethekile lapha, phakathi kwawo okufanele ukugqamisa iLake Vostok. Siqanjwe ngegama lesiteshi iVostok, esiseduze. Ichibi leli limbozwe ngoqweqwe lwaphezulu oluvela phezulu. Indawo yayo ingamamitha skwele ayizinkulungwane eziyi-15.5. amakhilomitha. I-East ingumzimba wamanzi ojulile kakhulu, njengoba ukujula kwawo kungamamitha ayi-1200. Amanzi echibini ahlanzekile futhi ahlanganiswe nomoya-mpilo, futhi ekujuleni kwawo anezinga lokushisa elihle, ngoba afudunyezwa ngemithombo ephehla ugesi.
Ukutholakala kwechibi e-Antarctica
ILake Vostok latholakala ekupheleni kwekhulu lama-20. Isazi sesayensi yokuma komhlaba saseSoviet, iRussia kanye nesazi sokuma komhlaba u-A. Kapitsa uphakamise ukuthi ngaphansi kweqhwa kungaba nezinhlobo ezahlukahlukene zokukhululeka, futhi kwezinye izindawo kufanele kube nemizimba yamanzi. I-hypothesis yakhe yaqinisekiswa ngo-1996, lapho kutholakala ichibi elingaphansi komhlaba eduze kwesiteshi saseVostok. Kulokhu, ukuzamazama kokuzamazama komhlaba kweqhwa kusetshenzisiwe. Ukumba lo mthombo kwaqala ngo-1989, futhi ngokuhamba kwesikhathi, sekufinyelele ekujuleni okungaphezu kwamamitha ayizinkulungwane ezi-3, iqhwa lathathwa ukuze lenziwe ucwaningo, elakhombisa ukuthi kwakungamanzi afriziwe echibi elingaphansi kweqhwa.
Ngo-1999 kwamiswa ukubhola umthombo. Ososayensi banqume ukungaphazamisi imvelo ukuze bangangcolisi amanzi. Kamuva, ubuchwepheshe obungemvelo bokubhola umthombo eqhweni lezinguzunga zeqhwa benziwa, obabuvumela ukuqhubeka kokubhola. Njengoba imishini iye yaphuka ngezikhathi ezithile, le nqubo yandiswa eminyakeni eminingana. Ososayensi babenethuba lokufinyelela ngaphezulu kwechibi elingaphansi komhlaba ekuqaleni kuka-2012.
Ngemuva kwalokho, kwathathwa amasampula wamanzi ukuze kwenziwe ucwaningo. Bakhombisile ukuthi kukhona ukuphila echibini, okungukuthi izinhlobo eziningana zamagciwane. Zikhule zodwa zivela kwezinye izinto zemvelo zeplanethi, ngakho-ke azaziwa yisayensi yanamuhla. Amanye amaseli kukholakala ukuthi angawezilwane ezinamaseli amaningi njengama-molluscs. Amanye amabhaktheriya atholakele izimuncagazi zezinhlanzi, ngakho-ke izinhlanzi zingaphila ekujuleni kweLake Vostok.
Ukukhululeka endaweni echibini
ILake Vostok yinto ehlolisiswa kuze kube namuhla, futhi izici eziningi zalesi simiso semvelo azikakasungulwa. Muva nje, sekuhlanganiswe ibalazwe elibonisa ukukhululeka nezinhlaka zolwandle. Iziqhingi eziyi-11 zitholakale endaweni yedamu. Ummango ongaphansi kwamanzi wahlukanisa ngaphansi kwechibi laba izingxenye ezimbili. Ngokuvamile, i-ecosystem of Lake EMpumalanga kunokuhlushwa okuphansi kwezakhamzimba. Lokhu kuholela eqinisweni lokuthi zimbalwa kakhulu izinto eziphilayo echibini, kepha akekho owaziyo ukuthi yini ezotholakala echibini lapho kusenziwa olunye ucwaningo.
