Since the formation of the Earth’s present atmosphere, the earth has experienced periods of temperature drops and rises. Therefore, sometimes if the temperature were to drop long enough, large ice sheets called glaciations would grow. During an ice age, these glaciations spread outward, leaving glacial deposits and possibly separating continents as the temperature changed.
Evidence to support this theory is the present distribution of glacial deposits from the Palaeozoic (past) glaciation. Glaciers of the same age are found in Africa, South America, India and Australia.
Evidence to support this theory is the present distribution of glacial deposits from the Palaeozoic (past) glaciation. Glaciers of the same age are found in Africa, South America, India and Australia.
The occurrence of glaciations in specific areas is very difficult to understand.
However, the next picture reveals with the continents rearranged, the areas affected by glaciations would fit perfectly. To strengthen this theory, the direction of ice movement indicated by arrows show that they are now consistent. The same way the geological formations are continuous across continents and the trends of fossil distribution. Due to technology, glaciologists have also discovered the same age and rock deposits on matching sides.
No comments:
Post a Comment