Why is there no coal in Antarctica? Free Technical Library News

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Why is there no coal in Antarctica?

08.04.2000

In the Cretaceous period, when the whole Earth was warm, almost the entire planet was covered with lush tropical forests. On all continents since those times there were deposits of coal. Except for Antarctica, where only a few small and thin strata have been found. At the same time, it is known that Antarctica was also covered with deciduous forests.

Why didn't coal form here? According to computer simulations of the ancient climate of Antarctica by David Burling of the University of Sheffield (England), the water balance of the Antarctic forests was very tight. How much water the trees received from the rains, so much evaporated.

Therefore, the groundwater level was low, and swamps could not have arisen in Antarctica. And the formation of coal begins precisely with a peat bog: for tens of thousands of years, the dead remains of plants turn first into peat, then into brown coal, and finally into stone. As the computer model showed, small swamps could have arisen only in a few places on the continent - it is there that scarce deposits of coal are now found.

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