Search results
Results from the WOW.Com Content Network
Vaalbara is a hypothetical Archean supercontinent consisting of the Kaapvaal Craton (now in eastern South Africa) and the Pilbara Craton (now in north-western Western Australia). E. S. Cheney derived the name from the last four letters of each craton's name.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate
In geology, a supercontinent is the assembly of most or all of Earth's continental blocks or cratons to form a single large landmass. [ 1 ] [ 2 ] [ 3 ] However, some geologists use a different definition, "a grouping of formerly dispersed continents", which leaves room for interpretation and is easier to apply to Precambrian times. [ 4 ]
Map of Pangaea with modern continental outlines. The supercontinent cycle is the quasi-periodic aggregation and dispersal of Earth's continental crust.There are varying opinions as to whether the amount of continental crust is increasing, decreasing, or staying about the same, but it is agreed that the Earth's crust is constantly being reconfigured.
Vaalbara was the first supercontinent. [2] Europe is the newest continent. [ 3 ] Geologists have predicted that certain continents will appear, these being Pangaea Proxima , Novopangaea , Aurica , and Amasia .
Zealandia’s history is quite closely tied to the ancient supercontinent of Gondwana, which broke up hundreds of millions of years ago. Zealandia followed suit—roughly 80 million years ago ...
A map of the Barberton Greenstone Belt in southern Africa. Similarities between the Barberton Greenstone Belt in the Kaapvaal Craton and the eastern part of the Pilbara Craton indicate that the two formations were once joined as part of the supercontinent Vaalbara , one of Earth's earliest supercontinents . [ 3 ]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!