Examine this map showing the age of the crust in Africa and South America, and the position of ancient mountain belts (areas where mountain ranges used to exist but have since been eroded down to their roots). This information was not available to Alfred Wegener. Would he find it consistent with the idea of continental drift, or would it prove his idea wrong? Explain. South America Africa Archean aged crust (3800-2500 Ma) Proterozoic-aged mountain belts (2500-540 Ma) For the toolbar. press ALT+F10 (PC) or ALT+FN+F10 (Mac). Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Ancient mountain belts those who are present world wide and are getting eroded also obeys the idea of continental drift.
Those mountain belts are the belts which were once joined after the plate tectonic happened they gote separated.
Plate tectonic the horizontal movement of the tectonic plates started when the plate got thick enough and then they tend to flow.
Before that those mountain belts that were formed due to cooling and crumpling and any other mechanism can give a strong evidence for the plate tectonic movement after they got separated to different different continents.
For example the ancient mountain chain present in India named Central Indian Tectonic zone(Satpura mobile belt). It is a belt present in between two two subcontinents the Deccan sub-continent and the Bundelkhand sub-continent. This is the suture zone in between them.
This zone also present in Australia in between the Yilgarn and the Pilbara craton of Australia. It is also present in Antarctica in different name. So this mountain belt was once present in Australia, Antarctica and India when they were joined.
So this is an ancient mountain belt which can give the idea of continental drift and should be a correct assumption.
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