Amadwala ehlathi neVredefort Dome

© David Fleminger

Supergroup ye-Transvaal

Ngemuva kwe-Transvaal Supergroup kwafika i-Bushveld Complex, eyakhiwa lapho kutholakala idwala elikhulu elibunjiwe kusukela ngaphakathi kuze kube sezingenhla eziphezulu zeTransvaal Supergroup. Lo mjovo wedwala ube yizingxenye ezilula zeTransvaal Supergroup eyakha isakhiwo esiyinkimbinkimbi engamakhilomitha namaphesenti ayisishiyagalombili ePlatinum yezwe. Awe ma! Kodwa akuyona yonke injabulo nemidlalo.

Eminyakeni engaba yizigidi eziyizinkulungwane ezimbili ezedlule, inkanyezi enkulu yahlasela phansi endaweni engaba ngamakhilomitha ayikhulu namashumi amabili eningizimu-ntshonalanga yeGoli.Yashaya kakhulu kangangokuthi idwala laphakanyiswa, amakhilomitha ayishumi ngaphezu kwesimo salo sokuqala.

Umphumela wawuyi-Vredefort Dome, indawo enkulu kunazo zonke futhi eyaziwa kakhulu lapho inkanyezi yawa khona eMhlabeni (ekuqaleni zilinganiselwa ku-250km ukusuka ohlangothini kusiya ohlangothini, nakuba okuningi kwalesi sigodi sekugcwalisiwe). Lokhu kuthinteka kwavala isigodi semali egcinwe phansi yegolide, ngaleyo ndlela kwavikela ukuxhashazwa ekusebenziseni esikhathini esizayo.

Kodwa i-Vredefort Dome bekungakabhekwa njengendawo lapho kwakukhona khona umthelela futhi, phakathi neminyaka, abagqugquzeli abahlukahlukene bafaka imibono yabo siqu. Kodwa-ke, ukucwaninga kwakamuva kuye kwacacisa izinto kancane, futhi ukuphikisana mayelana nomsuka weDome kubonakala sengathi kuxazululwe abantu abafunda amatshe.

Nakuba ngisingaqiniseki ukuthi umthelela ungakha kanjani ummango hhayi isigodi, kufanele ngikhothamele ulwazi oluphakeme lwabantu abazi kangcono kunami futhi ngimemezele ukuthi iinkanyezi eyawa emhlabeni yenze lokhu ngemva kwakho konke!