Botswana
: Top Destination, Sightseeing, Visiting places in Botswana.
Okavango
Delta - The Okavango Delta is a region in Botswana.
* Kalahari Basin
The Kalahari Desert lies in the Kalahari Basin, which is enormous, about
five times the size of France, and the Basin covers all of Botswana and
parts of her surrounding countries. The Kalahari Basin was created 135
million years ago when South America, Asia and Australia tore themselves
away from Africa. The power of this event and of the secondary volcanic
and earth shuddering activity it caused lifted the edges of southern
Africa like a bowl, creating the Basin. Over many millions of years this
part of the world passed through extremely dry periods, during which
fierce sand storms dumped layer upon layer of sand into the basin. And
today, 65 million years later, this is the oldest and largest stretch of
sand on our planet.
These sands are about 250m deep and geologically this area has looked
almost the same for most of those 65 million years. Now in all honesty one
million years is quite difficult for us to contemplate, let alone 65. But
in terms of an almost unchanged landscape that is, even geologically
speaking a long, long time. To put it into perspective only 12 000 years
ago most of Europe was under ice and completely uninhabitable. And the
rugged valleys of Scotland and Fjords of Norway were carved by that very
same ice.
Because of this great age and because of Africa’s position in relation to
the equator, Africa was largely unaffected but the last few ice ages and
thus, when compared to the rest of the planet, Africa has suffered far
less extinctions. The result of this an amazing diversity of plants,
trees, birds and animals. To give you an idea of this diversity the
Okavango Delta alone has as many species of trees as the whole of Western
Europe.
* Kalahari Desert
The Kalahari is currently in the wet period of its 65 million year
history. It's most outstanding physical feature is the living desert. The
sands of the Kalahari Desert have mostly been blown there rather than
transported by water and thus are not very fertile. Even so, after good
rains, grass is plentiful and this supports an astounding diversity of
life. The Kalahari Desert is the last refuge of the San or Bushmen, who
have roamed Southern Africa for the last 30 000 years and are now on the
verge of extinction. If you wish to find out more about the world’s oldest
contemporary culture on look on the Smartguide website for the Bushmen
Download.
* Lake Makgadikgadi
At some stage in this 65 million year period large Rivers flowed into the
Kalahari Basin, creating a giant lake which in turn emptied into the
Indian Ocean via the Limpopo River. And then about 50 000 years ago, due
to the numerous fault lines in the area, all but the Okavango River were
diverted, and the Lake began to shrink. Until about 10 000 years ago
another fault effectively dammed the Okavango River creating the delta and
leaving the Lake to become the largest the salt pan complex in the world,
the Makgadikgadi Pans – an amazing expanse of whiteness the size
Switzerland.
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